MedWorm.com provides a medical RSS filtering service. Over 6000 RSS medical sources are combined and output via different filters. This feed contains the latest items from the 'American Journal of Orthodontics and Dentofacial Orthopedics' source. Wed, 08 Feb 2012 12:06:11 +0100 http://www.medworm.com/index.php?rid=5638512&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540612000145%2Fabstract%3Frss%3Dyes Introduction: The force application period is a modifiable factor in root resorption. There is still ambiguity if the continuity of force application is advantageous in terms of root resorption and tooth movement. In this prospective randomized clinical trial, we compared the effects of 2 reactivation periods of controlled-intermittent and continuous forces on root resorption and tooth movement. Methods: Thirty-two patients were randomly divided into 2 groups: 2 weekly and 3 weekly reactivations. A split-mouth setup was used for the intermittent and continuous force comparisons. The intermittent force was designed with a pause of 3 days before each reactivation of the springs. A buccally directed tipping force (150 g) was generated with 0.017 × 0.025-in Beta III Titanium cantilever spring... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638512 Sun, 29 Jan 2012 16:46:13 +0100 5638512 http://www.medworm.com/index.php?rid=5638511&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540612000133%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638511 Sun, 29 Jan 2012 16:46:13 +0100 5638511 http://www.medworm.com/index.php?rid=5638510&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061200011X%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638510 Sun, 29 Jan 2012 16:46:13 +0100 5638510 http://www.medworm.com/index.php?rid=5638509&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540612000091%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638509 Sun, 29 Jan 2012 16:46:13 +0100 5638509 http://www.medworm.com/index.php?rid=5638508&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061200039X%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638508 Sun, 29 Jan 2012 16:46:13 +0100 5638508 http://www.medworm.com/index.php?rid=5638507&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611012066%2Fabstract%3Frss%3Dyes It is with profound sadness that we write these words about our close friend and colleague, Tiziano Baccetti. On November 25, 2011, Tiziano died accidentally in a fall in Prague, after having spoken at the 9th International Orthodontic Symposium. According to the organizers, he gave a “brilliant, energetic, and humorous” keynote address for which he received a standing ovation. Tiziano was true to form, always an engaging speaker. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638507 Sun, 29 Jan 2012 16:46:13 +0100 5638507 http://www.medworm.com/index.php?rid=5638506&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010870%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638506 Sun, 29 Jan 2012 16:46:13 +0100 5638506 http://www.medworm.com/index.php?rid=5638505&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010316%2Fabstract%3Frss%3Dyes In 3 previous articles in this series on randomized clinical trials (RCTs), we discussed the process and steps of randomization. In this article, we will discuss the purpose and use of controls in RCTs. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638505 Sun, 29 Jan 2012 16:46:13 +0100 5638505 http://www.medworm.com/index.php?rid=5638504&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010304%2Fabstract%3Frss%3Dyes You have decided to be an expert witness for the defense in a malpractice case. You are board certified and have lots of other supporting credentials. Your testimony was taken at a de benne esse deposition. This type of deposition is videotaped and taken in anticipation of your being unavailable to testify at the trial. At this type of deposition, you are sworn in as you would be at the trial, you provide your direct testimony, and you are also cross-examined by the opposing counsel. The entire deposition is preserved, and the recording can then be introduced at the trial if you cannot appear. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638504 Sun, 29 Jan 2012 16:46:13 +0100 5638504 http://www.medworm.com/index.php?rid=5638503&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010043%2Fabstract%3Frss%3Dyes Four relatively new technologies are now key in orthodontic specialty laboratories: digital photography, laser welding, computer-aided design/computer-aided manufacturing, and intraoral scanners. The purposes of this article are to briefly describe these technologies and to explain how they are used in the orthodontic laboratory. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638503 Sun, 29 Jan 2012 16:46:13 +0100 5638503 http://www.medworm.com/index.php?rid=5638502&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010006%2Fabstract%3Frss%3Dyes During orthodontic treatment with miniscrews, complications such as aphthous ulceration, soft-tissue coverage of the miniscrew head, soft-tissue inflammation, infection, and peri-implantitis can occur. Good hygiene can prevent inflammation by infection but does not prevent traumatic oral mucosal lesions at the buccal mucosa. The purpose of this article was to describe the use of a physical barrier—a light-cured temporary filling material—to cover the miniscrew head and prevent soft-tissue trauma. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638502 Sun, 29 Jan 2012 16:46:13 +0100 5638502 http://www.medworm.com/index.php?rid=5638501&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009978%2Fabstract%3Frss%3Dyes This article reports the successful treatment of a patient with the unusual occurrence of bilateral and multiple dentigerous cysts of the premolars. One impacted mandibular premolar was moved by traction orthodontically. On the opposite side, the impacted premolar was autotransplanted after space was created through mesial movement and hemi-sectioning of the neighboring molars. The impacted maxillary premolar was extracted. Miniscrews were additionally used for anchorage reinforcement to prevent unintended counteractions and solve the problem of space management after autotransplantation. We also reviewed the clinical implications of the diagnosis, planning, and treatment of cyst-associated impacted teeth in young adult patients. (Source: American Journal of Orthodontics and Dentofacial Or... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638501 Sun, 29 Jan 2012 16:46:13 +0100 5638501 http://www.medworm.com/index.php?rid=5638500&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061100998X%2Fabstract%3Frss%3Dyes A 19-year-old woman with skeletal Class III malocclusion, paranasal depression, and a low mandibular plane angle was treated with orthodontics and orthognathic surgery. Dental decompensation and protraction of maxillary right third molar to replace maxillary right second molar were performed before surgery. Clockwise rotation of maxillo-mandibular complex was applied by Le Fort I osteotomy and bilateral sagittal split osteotomies to achieve facial balance. The active treatment period was 12 months. The stable occlusion and skeletal relationship were observed after a 10-month follow-up period. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638500 Sun, 29 Jan 2012 16:46:13 +0100 5638500 http://www.medworm.com/index.php?rid=5638499&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008754%2Fabstract%3Frss%3Dyes Conclusions: The proposed averaging method, which is simpler than the traditional GPPA approach, was found to be feasible for computing average dental forms. The average dental model constructed in this study might serve as a guide for treatment planning in orthodontic and prosthodontic dentistry. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638499 Sun, 29 Jan 2012 16:46:13 +0100 5638499 http://www.medworm.com/index.php?rid=5638498&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008808%2Fabstract%3Frss%3Dyes Conclusions: The most frequently reported reason for treatment was to improve chewing, and the item that showed the most pronounced improvement was also chewing. Most responders were only reasonably satisfied with the treatment. Whether peers noticed a change in appearance after treatment was a significant factor affecting both treatment satisfaction and reporting a good quality of life. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638498 Sun, 29 Jan 2012 16:46:13 +0100 5638498 http://www.medworm.com/index.php?rid=5638497&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010882%2Fabstract%3Frss%3Dyes Conclusions: No differences in tooth movement over 8 weeks of treatment or relapse at 4 weeks posttreatment were detected when comparing subjects who received weekly injections of relaxin with those who received a placebo. In both groups, an average of less than half of the programmed tooth movement was obtained after 8 weeks of treatment. The local doses of relaxin might have been too low to affect tooth movement or short-term relapse. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638497 Sun, 29 Jan 2012 16:46:13 +0100 5638497 http://www.medworm.com/index.php?rid=5638496&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009942%2Fabstract%3Frss%3Dyes Introduction: The aim of this study was to evaluate the primary stability and the histomorphometric measurements of self-drilling and self-tapping orthodontic microimplants and the correlations between factors related to host, implant, and measuring technique.Methods: Seventy-two self-drilling and self-tapping implants were placed into bovine iliac crest blocks after computed tomography assessments. Insertion torque values, subjective assessments of stability, and Periotest (Medizintecknik Gulden, Modautal, Germany) measurements were performed for each implant. Twelve specimens of each group were assigned to histologic and histomorphometric assessments.Results: The differences between insertion torque values, most Periotest values, and subjective assessments of stability scores were insi... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638496 Sun, 29 Jan 2012 16:46:13 +0100 5638496 http://www.medworm.com/index.php?rid=5638495&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009930%2Fabstract%3Frss%3Dyes Conclusions: This study suggested little advantage of a verbal review of the consent (except for patients for risk) when other means of review such as the customized slide show were included. Regression analysis suggested that patients understood best the elements presented first in the informed consent slide show. Consequently, the most important information should be presented first to patients, and any information provided beyond the first 7 points should be given as supplemental take-home material. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638495 Sun, 29 Jan 2012 16:46:13 +0100 5638495 http://www.medworm.com/index.php?rid=5638494&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009929%2Fabstract%3Frss%3Dyes Introduction: The aim of this study was to compare the efficacy of ibuprofen, viscoelastic bite wafers, and chewing gum in reducing orthodontic pain.Methods: This randomized clinical trial included 50 girls between the ages of 13 and 18 years classified into 5 groups of 10 each: placebo, ibuprofen (400 mg), chewing gum, soft viscoelastic wafer, and hard viscoelastic wafer. The patients in each group received 1 method immediately after placement of the initial archwires and every 8 hours if they experienced pain. Pain perception was recorded by the patients while chewing, biting, fitting front teeth, and fitting posterior teeth at 2 hours, 6 hours, bedtime, 24 hours, 2 days, 3 days, and 7 days after archwire placement, using a visual analog scale. Analysis of variance (ANOVA) and Tukey test... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638494 Sun, 29 Jan 2012 16:46:13 +0100 5638494 http://www.medworm.com/index.php?rid=5638493&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009772%2Fabstract%3Frss%3Dyes Introduction: Patient photos and silhouettes are commonly used in clinical evaluations and orthodontic research to evaluate profile esthetics. The purpose of this study was to determine whether the use of photos or silhouettes is a more appropriate method of evaluating African American profile esthetics and whether there are different profile esthetic preferences among clinicians when using photos compared with silhouettes.Methods: Pretreatment records of 20 adolescent African American patients were selected (10 male, 10 female) from the orthodontic clinic at the Albert Einstein Medical Center in Philadelphia. Each patient’s profile photo was digitally changed with imaging software (Dolphin Imaging and Management Solutions, Chatsworth, Calif) to fabricate a series of 7 photos and 7 silho... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638493 Sun, 29 Jan 2012 16:46:13 +0100 5638493 http://www.medworm.com/index.php?rid=5638492&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009760%2Fabstract%3Frss%3Dyes Conclusions: These data suggested a reduction of osteoclast and osteoblast activities in the absence of CCR2. The CCR2-CCL2 axis is positively associated with osteoclast recruitment, bone resorption, and orthodontic tooth movement. Therefore, blockage of the CCR2-CCL2 axis might be used in the future for modulating the extent of orthodontic tooth movement. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638492 Sun, 29 Jan 2012 16:46:13 +0100 5638492 http://www.medworm.com/index.php?rid=5638491&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009759%2Fabstract%3Frss%3Dyes Conclusions: Orthodontic appliances intended to maintain mandibular arch perimeter in the mixed dentition increase the probability of eruption disturbances of the mandibular second molars. Clinicians should monitor these patients carefully to prevent impaction of the second molars. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638491 Sun, 29 Jan 2012 16:46:13 +0100 5638491 http://www.medworm.com/index.php?rid=5638490&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010018%2Fabstract%3Frss%3Dyes Conclusions: Playing a wind instrument does not significantly influence the position of the anterior teeth and is not a major etiologic factor in the development of a malocclusion. However, playing a brass instrument with a large cup-shaped mouthpiece might predispose a musician to develop lingual crossbites or lingual crossbite tendencies. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638490 Sun, 29 Jan 2012 16:46:13 +0100 5638490 http://www.medworm.com/index.php?rid=5638489&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010298%2Fabstract%3Frss%3Dyes This case report describes the treatment of a boy, aged 13.6 years, whose ankylosed maxillary left central incisor had been avulsed and replanted 2.5 years earlier. Ankylosis of the tooth and adjacent alveolar process led to the development of infraocclusion, migration of adjacent teeth, midline deviation, and a vertical alveolar bone defect. Initially, distal tooth movement in the maxillary arch was performed with microimplant anchorage to gain space for repositioning the ankylosed tooth. Then a single-tooth osteotomy was performed in 1 surgical stage to allow for inferior repositioning of the tooth and bone. The ankylosed tooth was successfully leveled in the maxillary arch with a harmonic gingival margin. The total treatment period was 18 months, and the results were acceptable at 14 mo... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638489 Sun, 29 Jan 2012 16:46:13 +0100 5638489 http://www.medworm.com/index.php?rid=5638488&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009747%2Fabstract%3Frss%3Dyes Introduction: The force application period is a modifiable factor in root resorption. There is still ambiguity if the continuity of force application is advantageous in terms of root resorption and tooth movement. In this prospective randomized clinical trial, we compared the effects of 2 reactivation periods of controlled-intermittent and continuous forces on root resorption and tooth movement.Methods: Thirty-two patients were randomly divided into 2 groups: 2 weekly and 3 weekly reactivations. A split-mouth setup was used for the intermittent and continuous force comparisons. The intermittent force was designed with a pause of 3 days before each reactivation of the springs. A buccally directed tipping force (150 g) was generated with 0.017 × 0.025-in Beta III Titanium cantilever springs... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638488 Sun, 29 Jan 2012 16:46:13 +0100 5638488 http://www.medworm.com/index.php?rid=5638487&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611011930%2Fabstract%3Frss%3Dyes This study confirms the finding of previous studies (Bishara, 1996; Bishara, 1997; Tibana, 2004). The authors concluded that the dentoalveolar process is dynamic and will continue to experience changes throughout an adult’s lifetime. Both patients and orthodontists should be aware of and expect dentoalveolar changes throughout life. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638487 Sun, 29 Jan 2012 16:46:13 +0100 5638487 http://www.medworm.com/index.php?rid=5638486&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010055%2Fabstract%3Frss%3Dyes One of your patients is a college professor who has lost multiple teeth. The original treatment plan calls for uprighting the posterior quadrants followed by restorative rehabilitation with both conventional and implant-supported prostheses. As for all your interdisciplinary patients, you conduct a pretreatment conference with the restorative dentist and the periodontist, and then enroll the patient in a 24-month treatment plan consummated by a signed consent form and a financial contract. Despite the patient’s devotion to treatment, root divergence for implant placement after 27 months of fixed therapy is inadequate. A complication in case management is the sudden retirement of the restorative dentist because of newly diagnosed multiple sclerosis. The patient is dissatisfied with the de... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638486 Sun, 29 Jan 2012 16:46:13 +0100 5638486 http://www.medworm.com/index.php?rid=5638485&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611011929%2Fabstract%3Frss%3Dyes I thank Dr Bai for his interest in our article, but I want to express a few concerns regarding his assertions. As reported on page 121, the article focused specifically on “an unexpected problem encountered during the treatment of an unerupted maxillary permanent canine” and not generally on the treatment of an unerupted maxillary permanent canine. Not even the different “ways to treat impacted canines” was part of the topic of this article. The real message from this clinical report is that, when failure of a closed traction occurs, not only tooth ankylosis, but also osseointegration of the wire chain should be considered as possible causative factors. This clinical report made me wonder whether we ever had extracted canines with a healthy periodontal ligament that were not really... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638485 Sun, 29 Jan 2012 16:46:13 +0100 5638485 http://www.medworm.com/index.php?rid=5638484&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611011942%2Fabstract%3Frss%3Dyes In a July 2011 article, Bonetti et al reported on the treatment of an unerupted maxillary permanent canine. Canines play vital roles in both dentofacial esthetics and function. Canine impaction can lead to reduced arch length and internal or external apical root resorption. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638484 Sun, 29 Jan 2012 16:46:13 +0100 5638484 http://www.medworm.com/index.php?rid=5638483&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611011917%2Fabstract%3Frss%3Dyes The thought-provoking column by Dr Peter Greco in the November issue of the AJO-DO couldn’t have been better timed! It had us trying to reflect on the few decennia of advancements and innovations in orthodontics that have helped define our specialty as it is today. On a clinical note, although these innovations might undoubtedly have revolutionized the way we practice orthodontics (in terms of increased efficiency and productivity), they have also taken some of the excitement (patient-personalized wire-bending) from our specialty by a great degree. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638483 Sun, 29 Jan 2012 16:46:13 +0100 5638483 http://www.medworm.com/index.php?rid=5638482&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611011905%2Fabstract%3Frss%3Dyes How much time and money do you invest in continuing education annually to keep abreast of developments in orthodontics? In what venues do you find the most productive continuing educational experiences? As orthodontists, we have many opportunities to avail ourselves of new information. For example, you could read the AJO-DO monthly and advance your understanding of new findings in orthodontic research. Some clinicians prefer to attend state or constituent meetings to hear the latest speakers and visit with constituent colleagues. Still others attend the AAO Annual Session on a regular basis to be exposed to a wide variety of speakers from around the world. Or you could participate in one of the webinars that the AAO sponsors on a monthly basis on topics of interest to doctors and staff. (S... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5638482 Sun, 29 Jan 2012 16:46:13 +0100 5638482 http://www.medworm.com/index.php?rid=5537964&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061101167X%2Fabstract%3Frss%3Dyes Conclusions: Greater root resorption was observed after heavy extrusive forces when compared with light forces. The distal surfaces of the tooth root were significantly more affected than other root surfaces and might be influenced by root morphology and initial angulation of the tooth. There was no significant difference in the cervical, middle, and apical thirds in relation to root resorption after light or heavy extrusive forces. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537964 Sun, 25 Dec 2011 05:14:38 +0100 5537964 http://www.medworm.com/index.php?rid=5537963&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611011152%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537963 Sun, 25 Dec 2011 05:14:38 +0100 5537963 http://www.medworm.com/index.php?rid=5537962&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611011668%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537962 Sun, 25 Dec 2011 05:14:38 +0100 5537962 http://www.medworm.com/index.php?rid=5537961&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611011656%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537961 Sun, 25 Dec 2011 05:14:38 +0100 5537961 http://www.medworm.com/index.php?rid=5537960&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611011127%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537960 Sun, 25 Dec 2011 05:14:38 +0100 5537960 http://www.medworm.com/index.php?rid=5537959&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611011115%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537959 Sun, 25 Dec 2011 05:14:38 +0100 5537959 http://www.medworm.com/index.php?rid=5537958&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611011401%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537958 Sun, 25 Dec 2011 05:14:38 +0100 5537958 http://www.medworm.com/index.php?rid=5537957&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010791%2Fabstract%3Frss%3Dyes Professor Emeritus Jüri Kurol passed away on October 13, 2011. Jüri was born in Estonia in 1942. He moved to Sweden with his family at the age of 2, grew up in the city of Ängelholm, and graduated from high school in 1961. He earned his dental degree from the Royal Dental School at Lund University in Malmö, Sweden, in 1966 and then served in the Dental Public Health Service in Ljungby. Jüri graduated from the 3-year postgraduate orthodontic program at the University of Göteborg in 1972. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537957 Sun, 25 Dec 2011 05:14:38 +0100 5537957 http://www.medworm.com/index.php?rid=5537956&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008791%2Fabstract%3Frss%3Dyes Randomization consists of 3 steps: generation of the random allocation sequence, allocation concealment, and implementation of the random allocation sequence. In the previous 2 articles, we discussed the methods to generate the random allocation sequence (the summarizes these methods); in this final article on randomization, we will discuss allocation concealment and implementation of randomization. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537956 Sun, 25 Dec 2011 05:14:38 +0100 5537956 http://www.medworm.com/index.php?rid=5537955&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061100878X%2Fabstract%3Frss%3Dyes Pruitt v Lewis, Super Ct No. 08C-03-033 (Del 3/10/2011), is interesting because it addresses the question of whether statistical evidence can be admitted to prove that a defendant did or did not breach a standard of care. The defendant offered the statistical evidence to show that there was a lack of causation and the probability that he did not breach the standard of care, because the result of his ministrations to the patient fell within expected statistical parameters. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537955 Sun, 25 Dec 2011 05:14:38 +0100 5537955 http://www.medworm.com/index.php?rid=5537954&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008766%2Fabstract%3Frss%3Dyes Introduction: Our objective was to test the value of minisensors for recording unrestrained head position with 6 degrees of freedom during 3-dimensional stereophotogrammetry.Methods: Four 3-dimensional pictures (3dMD, Atlanta, Ga) were taken of 20 volunteers as follows: (1) in unrestrained head position, (2) a repeat of picture 1, (3) in unrestrained head position wearing a headset with 3-dimensional live tracking sensors (3-D Guidance trackSTAR; Ascension Technology, Burlington, Vt), and (4) a repeat of picture 3. The sensors were used to track the x, y, and z coordinates (pitch, roll, and yaw) of the head in space. The patients were seated in front of a mirror and asked to stand and take a walk between each acquisition. Eight landmarks were identified in each 3-dimensional picture (nasio... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537954 Sun, 25 Dec 2011 05:14:37 +0100 5537954 http://www.medworm.com/index.php?rid=5537953&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061100792X%2Fabstract%3Frss%3Dyes This purpose of this article was to report the clinical case of a patient with Eagle’s syndrome. She was referred to the orthodontic clinic by her general clinician, with the complaint of temporomandibular dysfunction. The orthodontic records showed a styloid process elongation accompanied by calcification and fracture on the right side. Eagle’s syndrome was diagnosed, and the patient was referred to a buccomaxillofacial surgeon for surgical correction. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537953 Sun, 25 Dec 2011 05:14:37 +0100 5537953 http://www.medworm.com/index.php?rid=5537952&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008730%2Fabstract%3Frss%3Dyes The Tweed-Merrifield directional force technique is a useful treatment approach for a patient with a Class II malocclusion with dentoalveolar protrusion. The purpose of this case report was to present the diagnosis and treatment descriptions of a patient with an Angle Class II malocclusion complicated by tooth losses, severe dentoalveolar protrusion, and skeletal discrepancy. Treatment involved extraction of the maxillary first premolars, high-pull headgear to enhance anchorage, and high-pull J-hook headgear to retract and intrude the maxillary anterior segments. A successful outcome was achieved with traditional orthodontic treatment in this borderline surgical case. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537952 Sun, 25 Dec 2011 05:14:37 +0100 5537952 http://www.medworm.com/index.php?rid=5537951&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008821%2Fabstract%3Frss%3Dyes Subapical mandibular surgeries have been used to correct vertical malocclusion and interdental problems associated with mandibular deformity. Subapical surgery to the anterior part of the mandible is applicable in many patients with anterior open bite and deepbite. Surgery of the posterior part of the mandible is needed less frequently than surgery of the anterior part. This case report describes the surgical-orthodontic treatment of a 21-year-old woman who underwent posterior subapical mandibular surgery. Her chief complaint was facial asymmetry, and she had a collapsed mandibular arch with a scissors-bite of the right premolars and molars. After subapical osteotomy, surgically assisted correction of the collapsed right mandibular arch was performed with a lingual arch appliance. Comprehe... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537951 Sun, 25 Dec 2011 05:14:37 +0100 5537951 http://www.medworm.com/index.php?rid=5537950&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061100881X%2Fabstract%3Frss%3Dyes Conclusions: The following findings were observed in subjects with a high smile pattern: (1) short upper lip length, (2) low smiling/resting upper lip length ratio, (3) inferior attachment of the upper labial vestibule, and (4) prominent upper lip vermilion. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537950 Sun, 25 Dec 2011 05:14:37 +0100 5537950 http://www.medworm.com/index.php?rid=5537949&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008742%2Fabstract%3Frss%3Dyes Conclusions: Vertical alveolar growth between the first permanent molar and the second premolar adjacent to the infraoccluded teeth was smaller than in areas adjacent to teeth with normal occlusion. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537949 Sun, 25 Dec 2011 05:14:37 +0100 5537949 http://www.medworm.com/index.php?rid=5537948&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008651%2Fabstract%3Frss%3Dyes Conclusions: Placement of microimplants at a 90° angulation in the bone reduces the stress concentration, thereby increasing the likelihood of implant stabilization. Perpendicular insertion offers more stability to orthodontic loading. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537948 Sun, 25 Dec 2011 05:14:37 +0100 5537948 http://www.medworm.com/index.php?rid=5537947&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061100864X%2Fabstract%3Frss%3Dyes Conclusions: The results indicate that the expansion of the mandibular arch with MSDO and conventional orthodontic mechanics produces no statistically significant transverse changes from posttreatment to long-term follow-up. The risks of using a surgical procedure and MSDO to achieve additional expansion should be evaluated by the clinician and compared with more traditional orthodontic methods. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537947 Sun, 25 Dec 2011 05:14:37 +0100 5537947 http://www.medworm.com/index.php?rid=5537946&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008699%2Fabstract%3Frss%3Dyes Conclusions: More strict clinical definitions might increase homogeneity and aid the studies of genetic susceptibility to malocclusions. We provide evidence that MYO1H can contribute to mandibular prognathism. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537946 Sun, 25 Dec 2011 05:14:36 +0100 5537946 http://www.medworm.com/index.php?rid=5537945&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008705%2Fabstract%3Frss%3Dyes Introduction: The aim of this study was to determine the accuracy of cone-beam computed tomography (CBCT) with different voxel resolutions. Measurements were made of the bony covering of the mandibular anterior teeth because this region is crucial in orthodontic treatment planning.Methods: CBCT data at 2 resolutions (0.125-mm and 0.4-mm voxels) were collected from 8 intact cadaver heads. The vertical position of the mucogingival junction was clinically assessed. After removal of the gingiva, vertical and horizontal bony measurements were taken, and the buccal alveolar bone margin was determined. Anatomic bony measures were compared with the CBCT measures, and the correlation of the mucogingival junction measures to the buccal alveolar bone margin measures was evaluated.Results: Bony measur... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537945 Sun, 25 Dec 2011 05:14:36 +0100 5537945 http://www.medworm.com/index.php?rid=5537944&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008717%2Fabstract%3Frss%3Dyes Conclusions: Local OPG gene transfer to periodontal tissues could inhibit relapse after orthodontic tooth movement, through the inhibition of osteoclastogenesis. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537944 Sun, 25 Dec 2011 05:14:36 +0100 5537944 http://www.medworm.com/index.php?rid=5537943&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008729%2Fabstract%3Frss%3Dyes Introduction: Knowing the microbiota that colonizes orthodontic appliances is important for planning strategies and implementing specific preventive measures during treatment. The purpose of this clinical trial was to evaluate in vivo the contamination of metallic orthodontic brackets with 40 DNA probes for different bacterial species by using the checkerboard DNA-DNA hybridization (CDDH) technique.Methods: Eighteen patients, 11 to 29 years of age having fixed orthodontic treatment, were enrolled in the study. Each subject had 2 new metallic brackets bonded to different premolars in a randomized manner. After 30 days, the brackets were removed and processed for analysis by CDDH. Data on bacterial contamination were analyzed descriptively and with the Kruskal-Wallis and Dunn post tests (α... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537943 Sun, 25 Dec 2011 05:14:36 +0100 5537943 http://www.medworm.com/index.php?rid=5537942&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008687%2Fabstract%3Frss%3Dyes Conclusions: We found that practitioners had only moderate agreement among themselves when diagnosing a patient’s type of malocclusion and which arch was at fault when a skeletal discrepancy was noted. Intrarater agreement improved as the peer assessment rating score increased, but the correlation was weak, and this was not consistent for all examiners. Because of insufficient intrarater agreement, interrater agreement was not examined. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537942 Sun, 25 Dec 2011 05:14:35 +0100 5537942 http://www.medworm.com/index.php?rid=5537941&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008171%2Fabstract%3Frss%3Dyes The purpose of this article was to describe the closure of a maxillary median diastema of a 26-year-old woman that had been corrected before during orthodontic treatment but reopened after dental trauma in a car accident. A clear esthetic device made from a tray like those used for home bleaching was used, providing a comfortable, nearly undetectable, and efficient solution. A permanent fixed retainer was bonded again to the maxillary central incisors to prevent relapse. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537941 Sun, 25 Dec 2011 05:14:35 +0100 5537941 http://www.medworm.com/index.php?rid=5537940&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008663%2Fabstract%3Frss%3Dyes Despite the known influence of early treatment on the facial appearance of growing patients with skeletal Class III malocclusion, few comparative reports on the long-term effects of different treatment regimens (1-phase vs 2-phase treatment) have been published. Uncertainty remains regarding the effects of early intervention on jaw growth and its effectiveness and efficiency in the long term. In this case report, we compared the effects of early orthodontic intervention as the first phase of a 2-phase treatment vs 1-phase fixed appliance treatment in identical twins over a period of 11 years. Facial and dental changes were recorded, and cephalometric superimpositions were made at 4 time points. In spite of the different treatment approaches, both patients showed identical dentofacial chara... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537940 Sun, 25 Dec 2011 05:14:35 +0100 5537940 http://www.medworm.com/index.php?rid=5537939&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008675%2Fabstract%3Frss%3Dyes Conclusions: Greater root resorption was observed after heavy extrusive forces when compared with light forces. The distal surfaces of the tooth root were significantly more affected than other root surfaces and might be influenced by root morphology and initial angulation of the tooth. There was no significant difference in the cervical, middle, and apical thirds in relation to root resorption after light or heavy extrusive forces. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537939 Sun, 25 Dec 2011 05:14:35 +0100 5537939 http://www.medworm.com/index.php?rid=5537938&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010857%2Fabstract%3Frss%3Dyes There is no doubt that dental casts, whether plaster or digital, are one of many important tools routinely used in orthodontics for assessing dentitions or malocclusions. Unfortunately, to this day, a convincing case has still not been made for the routine mounting of all casts on articulators. Drs Martin and Cocconi, however, would like you to believe otherwise. The issue of articulator mountings in orthodontics must be considered within the broad framework of orthodontic gnathology. Under the premise of pursuing “what is best for the patient,” Drs Martin and Cocconi have conveniently left out the term “gnathology” in their “Point” article; however, the principles of gnathology (right or wrong) form the basis of their argument for using articulators. We have written and expres... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537938 Sun, 25 Dec 2011 05:14:35 +0100 5537938 http://www.medworm.com/index.php?rid=5537937&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010845%2Fabstract%3Frss%3Dyes To mount or not to mount: that is the question. The famous quotation from Hamlet, slightly transformed, continues: “Whether ’tis nobler in the mind to suffer the slings and arrows of outrageous fortune, or to take arms against a sea of troubles, and by opposing end them. To die, to sleep… " (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537937 Sun, 25 Dec 2011 05:14:35 +0100 5537937 http://www.medworm.com/index.php?rid=5537936&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009991%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537936 Sun, 25 Dec 2011 05:14:35 +0100 5537936 http://www.medworm.com/index.php?rid=5537935&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010833%2Fabstract%3Frss%3Dyes In this study, the authors examined the psychosocial impact of these treatments on the daily life of patients, compared with a nonmalocclusion group. A total of 187 Iranian children, aged 11 to 14, were divided into 3 groups: functional appliance (n = 67), headgear (n = 67), and nonmalocclusion (control) (n = 53). The subjects were recruited from government and private orthodontic practices. All participants completed the oral health quality of life (OHQoL) child perception questionnaire (CPQ, short form), which encompasses 4 domains: oral symptoms, functional limitations, emotional well-being, and social well-being. The results indicate that the 2 treatment groups did not differ, but they had a poorer quality of life compared with the nonmalocclusion group. No differences were found amo... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537935 Sun, 25 Dec 2011 05:14:35 +0100 5537935 http://www.medworm.com/index.php?rid=5537934&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008778%2Fabstract%3Frss%3Dyes In your continued attempt to remain current in your specialty, you strive to read every journal that arrives at your office. You cannot help but notice that many articles are authored by our international colleagues. Several of these investigations involve exhaustive human study protocols that might have been impossible to conduct in the United States because of our rigorous institutional review criteria. You wonder whether there is a need for increased awareness of human rights in research. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537934 Sun, 25 Dec 2011 05:14:35 +0100 5537934 http://www.medworm.com/index.php?rid=5537933&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010821%2Fabstract%3Frss%3Dyes Congratulations on the October 2011 editorial (Kokich VG. Who determines when orthodontic treatment is complete? Am J Orthod Dentofacial Orthop 2011;140:451). I am an orthodontist; I graduated from the Universidad Intercontinental in México City, and I am currently living and practicing in the central part of Mexico, where I “suffered” the same experience. My brother has a master’s degree in prosthetic and cosmetic dentistry, and we often work together on patients. I have learned many aspects that I must correct before finishing a patient’s treatment. As orthodontists, we sometimes forget that all the perspectives of esthetics and function, from all branches of dentistry, match perfectly when we learn what other disciplines know. We must learn to learn from each other. We must ope... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537933 Sun, 25 Dec 2011 05:14:34 +0100 5537933 http://www.medworm.com/index.php?rid=5537932&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061101081X%2Fabstract%3Frss%3Dyes I read the October 2011 editorial with great interest, since I am often in the position of working with dentists in multi-disciplinary cases (Kokich VG. Who determines when orthodontic treatment is complete? Am J Orthod Dentofacial Orthop 2011;140:451). It is so important to have input and coordination with the team. It is also important to have a mutually respectful relationship. We really need to emphasize mutual respect, and I have found that to be lacking in our community. I have often wondered whether some dentists realize that we went to dental school and then some! I still believe that orthodontists are the experts in our field since we have gone to an additional 2 or 3 years after dental school—and most of us were in the top of our class to qualify for specialty training. We are ... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537932 Sun, 25 Dec 2011 05:14:34 +0100 5537932 http://www.medworm.com/index.php?rid=5537931&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010808%2Fabstract%3Frss%3Dyes As an orthodontic researcher, it behooves me to address certain omissions of fact along with the growing errors emanating from the Guest Editorial in the September 2010 issue, “In the land of no evidence, is the salesman king?” Drs O’Brien and Sandler raised a valid issue, that unsubstantiated claims of growing buccal bone in 1 philosophy have been used by a team of evangelistic-styled promulgators to propel sales for a particular manufacturer, especially because these claims do not stand up to the evaluation of peer-reviewed journals. However, I am more alarmed that this might cause orthodontic practitioners and researchers to turn a jaundiced eye to all evidence-based data for self-ligation. As a consequence, self-ligation data appear at risk of being banished to the badlands by O�... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537931 Sun, 25 Dec 2011 05:14:34 +0100 5537931 http://www.medworm.com/index.php?rid=5537930&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061101078X%2Fabstract%3Frss%3Dyes When this issue reaches you, I will have concluded my first year as Editor-in-Chief of the AJO-DO. It has been an exciting, productive, and eventful year. Although I will not provide an annual report in future January editorials, I believe that a brief review of 3 important points is appropriate at this time. Let me start with the best news. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5537930 Sun, 25 Dec 2011 05:14:34 +0100 5537930 http://www.medworm.com/index.php?rid=5457765&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010377%2Fabstract%3Frss%3Dyes Conclusions: Speedy surgical orthodontic treatment can be an effective modality for adults with severe maxillary protrusion. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457765 Thu, 01 Dec 2011 05:00:00 +0100 5457765 http://www.medworm.com/index.php?rid=5457764&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010365%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457764 Thu, 01 Dec 2011 05:00:00 +0100 5457764 http://www.medworm.com/index.php?rid=5457763&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010353%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457763 Thu, 01 Dec 2011 05:00:00 +0100 5457763 http://www.medworm.com/index.php?rid=5457762&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010341%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457762 Thu, 01 Dec 2011 05:00:00 +0100 5457762 http://www.medworm.com/index.php?rid=5457761&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611010602%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457761 Thu, 01 Dec 2011 05:00:00 +0100 5457761 http://www.medworm.com/index.php?rid=5457760&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008845%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457760 Thu, 01 Dec 2011 05:00:00 +0100 5457760 http://www.medworm.com/index.php?rid=5457759&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009917%2Fabstract%3Frss%3Dyes Dr Alexander has been a major contributor to clinical orthodontics for many years. Also a longtime faculty member, he is currently a clinical professor of orthodontics at Baylor in Dallas, the University of Texas in Houston, and New York University. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457759 Thu, 01 Dec 2011 05:00:00 +0100 5457759 http://www.medworm.com/index.php?rid=5457758&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007906%2Fabstract%3Frss%3Dyes As I explained last month in part 1, during the randomization process, we generate and allocate interventions to trial arms in a way that ensures that neither the investigators nor the participants know or can predict ahead of time what treatment the patients will receive. Simple, restricted block, and stratified randomization methods have been presented so far, and now minimization will be explained. Minimization is a randomization method that ensures balance of important prognostic factors between treatment groups without the disadvantages of stratification. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457758 Thu, 01 Dec 2011 05:00:00 +0100 5457758 http://www.medworm.com/index.php?rid=5457757&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007888%2Fabstract%3Frss%3Dyes Okay, you have been sued for malpractice. Obviously, when you are called to testify, part of your testimony will pertain to your educational and professional background. You took the ABO written examination and failed it—twice. When you went for your oral examination, you failed that, too. Suppose, on the other hand, that you never took the examination. In either scenario, you are not board certified. Can either of these pieces of information be elicited during your testimony? Gipson v Younes, 724 So.2d 530 (Ala, 1998) provides us the answers to these questions. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457757 Thu, 01 Dec 2011 05:00:00 +0100 5457757 http://www.medworm.com/index.php?rid=5457756&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007918%2Fabstract%3Frss%3Dyes The purpose of this article is to describe a dynamic approach for 3-dimensional analyses of facial soft-tissue movements. The method and analysis have numerous applications but, most specifically, are used to assess diagnostic and treatment outcomes of soft-tissue surgery in patients with repaired cleft lip and palate. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457756 Thu, 01 Dec 2011 05:00:00 +0100 5457756 http://www.medworm.com/index.php?rid=5457755&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007177%2Fabstract%3Frss%3Dyes This article describes the method of a mirror-image analysis technique to visualize the asymmetry to assist in diagnosis and treatment planning. Other advantages of a mirror-image analysis, in addition to the quantitative analysis, are also discussed. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457755 Thu, 01 Dec 2011 05:00:00 +0100 5457755 http://www.medworm.com/index.php?rid=5457754&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007189%2Fabstract%3Frss%3Dyes This article describes a new method for controlling the maxillary dentition with 2 midpalatal miniscrews. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457754 Thu, 01 Dec 2011 05:00:00 +0100 5457754 http://www.medworm.com/index.php?rid=5457753&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007190%2Fabstract%3Frss%3Dyes This report describes the orthodontic treatment of a woman, aged 34 years 2 months, with several missing teeth and atrophic mandibular first molar extraction sites. We had planned to close the spaces from the missing maxillary canines with mesial movement of the premolars and molars. In the mandibular arch, protraction of the second molars into first molar extraction sites and reduction of the mandibular incisor protrusion were performed. No miniscrews or bone plates were used. A modified helical loop was used, and it can be considered a simple and an efficient orthodontic method of closing the spaces without mesial or lingual tipping and rotation. Pleasing esthetic and functional results were achieved. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457753 Thu, 01 Dec 2011 05:00:00 +0100 5457753 http://www.medworm.com/index.php?rid=5457752&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006901%2Fabstract%3Frss%3Dyes A 15.3-year-old white girl with a skeletal Class III malocclusion and a severe lateral open bite was treated with conventional orthodontics and directional force mechanics and elastics. She had 5 congenitally missing premolars. The maxillary right canine was ectopically erupted and in contact with the maxillary right first molar. An Angle Class I molar relationship was achieved with canine protected occlusion and incisal guidance. A wrap-around retainer was placed on the maxillary arch and a lingual bonded retainer on the mandibular arch. Treatment time was 38 months. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457752 Thu, 01 Dec 2011 05:00:00 +0100 5457752 http://www.medworm.com/index.php?rid=5457751&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007761%2Fabstract%3Frss%3Dyes Introduction: The aim of this study was to investigate the frequency of dental anomalies in orthodontic patients with different patterns of third-molar agenesis, comparing them with patients without third-molar agenesis.Methods: A sample of 374 patients with agenesis of at least 1 third molar was divided into 4 groups according to the third-molar agenesis pattern, and a control group of 98 patients without third-molar agenesis was randomly selected from the patient archives. Panoramic radiographs and cast models were used to determine the associated dental anomalies, such as hypodontia, hyperdontia, impaction, dilaceration, microdontia, ectopic eruption, transposition, and transmigration. The Pearson chi-square and Fisher exact tests were used to determine the differences in the distributi... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457751 Thu, 01 Dec 2011 05:00:00 +0100 5457751 http://www.medworm.com/index.php?rid=5457750&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061100775X%2Fabstract%3Frss%3Dyes Conclusions: Palatal and buccal canine displacements are 2 distinct entities; delayed dental development plays a role in the etiology of palatal canine displacement, but not in buccal canine displacement. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457750 Thu, 01 Dec 2011 05:00:00 +0100 5457750 http://www.medworm.com/index.php?rid=5457749&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007748%2Fabstract%3Frss%3Dyes Introduction: The purpose of this study was to compare the soft-tissue profiles of matched Class I adolescent European Americans and Mexican Americans. The secondary aim was to explain profile differences based on group differences in soft-tissue thickness, skeletal morphology, dental position, and tooth size.Methods: The study pertained to 207 untreated Class I adolescents, including 93 Mexican Americans and 114 European Americans. Lateral cephalometric and model analyses were performed to quantify morphologic differences. Two-way analyses of variance were used to evaluate ethnicity, sex, and their interaction.Results: Mexican Americans had significantly (P  (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457749 Thu, 01 Dec 2011 05:00:00 +0100 5457749 http://www.medworm.com/index.php?rid=5457748&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007736%2Fabstract%3Frss%3Dyes Conclusions: Different transverse maxillary arch forms at the crossbite side were observed in our patients with posterior unilateral crossbite. This finding might be interpreted as a diagnostic and prognostic key for mandibular asymmetry, paving the way for new treatment directions. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457748 Thu, 01 Dec 2011 05:00:00 +0100 5457748 http://www.medworm.com/index.php?rid=5457747&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007347%2Fabstract%3Frss%3Dyes Conclusions: Accredited orthodontic programs in the United States follow different procedures in assessing applicants for admission. It is important to consider both academic and nonacademic measures in assessing applicant information in a standardized manner to ensure a fair and efficient selection process. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457747 Thu, 01 Dec 2011 05:00:00 +0100 5457747 http://www.medworm.com/index.php?rid=5457746&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007840%2Fabstract%3Frss%3Dyes Conclusions: Orthodontic patients who use dental floss regularly have somewhat better gingival conditions than those who do not use floss. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457746 Thu, 01 Dec 2011 05:00:00 +0100 5457746 http://www.medworm.com/index.php?rid=5457745&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007323%2Fabstract%3Frss%3Dyes Conclusions: Cortical bone thickness and bone depth of the palatal alveolar process are, on average, favorable for the insertion of orthodontic mini-implants; however, some sites should routinely be avoided to prevent damage to the maxillary sinus unless 3-dimensional imaging is available. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457745 Thu, 01 Dec 2011 05:00:00 +0100 5457745 http://www.medworm.com/index.php?rid=5457744&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061100730X%2Fabstract%3Frss%3Dyes Conclusions: These results show that a magnetic field programmed freezer can be successfully used for cryopreservation of teeth. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457744 Thu, 01 Dec 2011 05:00:00 +0100 5457744 http://www.medworm.com/index.php?rid=5457743&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007311%2Fabstract%3Frss%3Dyes Conclusions: This treatment approach produced significant orthopedic changes in the maxilla and the zygomas in growing Class III patients. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457743 Thu, 01 Dec 2011 05:00:00 +0100 5457743 http://www.medworm.com/index.php?rid=5457742&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007256%2Fabstract%3Frss%3Dyes Conclusions: Accordingly, the potential toxicity of BPA from placing lingual bonded retainer might be negligible. On the other hand, because the health-effective amount of BPA is controversial, BPA release should be minimized. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457742 Thu, 01 Dec 2011 05:00:00 +0100 5457742 http://www.medworm.com/index.php?rid=5457741&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007268%2Fabstract%3Frss%3Dyes Conclusions: The findings emphasize a need for the judicious indication for space maintainers. The major effect on the dental arches occurred in the first 3 months after the extraction of the deciduous molars, indicating that these appliances should be fitted during this period. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457741 Thu, 01 Dec 2011 05:00:00 +0100 5457741 http://www.medworm.com/index.php?rid=5457740&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061100727X%2Fabstract%3Frss%3Dyes Introduction: Chronic snoring is considered abnormal in a pediatric population. This disorder is often attributed to enlarged tonsils and adenoids, but multiple anatomic obstructions should also be considered. Facial and dental morphometry associations with various sleep-disordered breathing symptoms were investigated at an orthodontic clinic.Methods: Parents or guardians were asked to complete a 4-part questionnaire on behalf of their children (n = 604;  (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457740 Thu, 01 Dec 2011 05:00:00 +0100 5457740 http://www.medworm.com/index.php?rid=5457739&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007207%2Fabstract%3Frss%3Dyes Conclusions: Based on this experiment, one can conclude that a 15° distal root tip bend causes more orthodontically induced inflammatory root resorption than a 2.5° distal root tip bend. Furthermore, greater root resorption was found in areas under pressure when compared with areas under tension. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457739 Thu, 01 Dec 2011 05:00:00 +0100 5457739 http://www.medworm.com/index.php?rid=5457738&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007220%2Fabstract%3Frss%3Dyes Conclusions: The overall landmark identification errors on CBCT-derived cephalograms were comparable to those on conventional digital cephalograms, and Ba was more reliable on CBCT-derived cephalograms. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457738 Thu, 01 Dec 2011 05:00:00 +0100 5457738 http://www.medworm.com/index.php?rid=5457737&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007244%2Fabstract%3Frss%3Dyes Conclusions: The 0.12% chlorhexidine gluconate oral rinses can be useful to reduce the levels of gram-negative periodontal pathogenic microorganisms in patients with fixed orthodontic appliances. Considering the increased amount of bacterial endotoxin after chlorhexidine gluconate use, further research is necessary to develop clinical procedures or antimicrobial agents with action against bacterial endotoxin adhering to metallic brackets. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457737 Thu, 01 Dec 2011 05:00:00 +0100 5457737 http://www.medworm.com/index.php?rid=5457736&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007232%2Fabstract%3Frss%3Dyes Conclusions: From our results, the maximum stresses observed in all analyzed types and shapes of miniscrews were under the yield stress of pure titanium and cortical bone. This indicates that the miniscrews in this study have enough strength to resist most orthodontic loads. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457736 Thu, 01 Dec 2011 05:00:00 +0100 5457736 http://www.medworm.com/index.php?rid=5457735&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007165%2Fabstract%3Frss%3Dyes Conclusions: The motives for adults to seek orthodontic treatment are numerous and varied, whereas psychological traits appear to be closer to those of the general public than to orthognathic patients. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457735 Thu, 01 Dec 2011 05:00:00 +0100 5457735 http://www.medworm.com/index.php?rid=5457734&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061100816X%2Fabstract%3Frss%3Dyes Conclusions: Speedy surgical orthodontic treatment can be an effective modality for adults with severe maxillary protrusion. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457734 Thu, 01 Dec 2011 05:00:00 +0100 5457734 http://www.medworm.com/index.php?rid=5457733&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009905%2Fabstract%3Frss%3Dyes This article reviews the available data regarding maxillomandibular advancement to treat patients with obstructive sleep apnea. After the quality of the studies was assessed, 39 articles were reviewed. No meta-analysis was performed because of the variability in methods used to evaluate obstructive sleep apnea syndrome and the success of surgical outcomes. Although the criteria used for outcome assessment varied greatly, the reported success rates of maxillomandibular advancement ranged from 65% to 100%. All studies advocated a minimum advancement of 10 mm. This sizeable advancement affected facial appearance, but, in all studies, most patients were satisfied with their postoperative esthetics regardless of a preoperative skeletal deficiency. The most common postoperative complications wer... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457733 Thu, 01 Dec 2011 05:00:00 +0100 5457733 http://www.medworm.com/index.php?rid=5457732&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061100789X%2Fabstract%3Frss%3Dyes It’s another family reunion, and your niece greets you with a big hug. She is a registered dental hygienist who works for a general dentist in a neighboring town. You cannot help but notice the stunning necklace she is wearing and ask if it is a gift from her husband. She informs you that it was purchased with a gift certificate from the orthodontist to whom her practice refers. You believe that she is joking and you smile, but she tells you that the orthodontist promises a substantial gift certificate to any staff member who refers 5 or more patients to him per year. You are incredulous but merely smile at her as you take another sip of your lemonade. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457732 Thu, 01 Dec 2011 05:00:00 +0100 5457732 http://www.medworm.com/index.php?rid=5457731&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009826%2Fabstract%3Frss%3Dyes We thank Dr Zahrowski for his interest in our article. The term “toxic ions” was originally based on the basic characterization of the metal components of silver solder, since all belong to the group of heavy metals—defined as metals with medium to high atomic numbers and that are toxic in low concentrations. Moreover, metals are chemically reactive and highly bioaccumulative; ie, living organisms cannot eliminate them. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457731 Thu, 01 Dec 2011 05:00:00 +0100 5457731 http://www.medworm.com/index.php?rid=5457730&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009796%2Fabstract%3Frss%3Dyes I read the article by Freitas et al and appreciated the accomplishment of this clinical trial. The authors evaluated the salivary concentration of metal ions of silver, cadmium, copper, and zinc from silver solder in 30 patients with hyrax appliances and 30 controls with saliva samples taken at 6 times (before cementation; 10 minutes after cementation; and 1, 7, 30, and 60 days after cementation). The small salivary concentrations of metal ions varied with ion type and decreased with time, with the maximum at 10 minutes (eg, cadmium, 71 μg/L) and decreased closer or equal to the controls with time. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457730 Thu, 01 Dec 2011 05:00:00 +0100 5457730 http://www.medworm.com/index.php?rid=5457729&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009863%2Fabstract%3Frss%3Dyes We carefully read the letter from Dr Waese with great interest and are pleased to reply. The main content of this letter was that tooth movement had an effect on intraoral volume, which could lead to breathing obstruction. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457729 Thu, 01 Dec 2011 05:00:00 +0100 5457729 http://www.medworm.com/index.php?rid=5457728&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009851%2Fabstract%3Frss%3Dyes After reading the excellent article on the correction of a posterior crossbite in the July 2011 issue (Liu R, Xiaoqing M, Wamalwa P, Zou SJ. Nonsurgical treatment of an adult patient with bilateral posterior crossbite. Am J Orthod Dentofacial Orthop 2011;140:106-14), I wonder about the possible effect on reduction of intraoral volume that this treatment plan created. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457728 Thu, 01 Dec 2011 05:00:00 +0100 5457728 http://www.medworm.com/index.php?rid=5457727&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009802%2Fabstract%3Frss%3Dyes The scientific content related to the cytotoxicty of components in fixed appliances in the September issue of the AJO-DO made interesting reading indeed! As clinicians, we have always been aware of the cytotoxic potential of the intraoral appliances that we place during treatment. With improving technology, there is an increasing body of data that suggests the possible mutagenic nature and carcinogenic potential of the materials we use clinically, and these facts raise several serious outstanding legal issues. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457727 Thu, 01 Dec 2011 05:00:00 +0100 5457727 http://www.medworm.com/index.php?rid=5457726&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009899%2Fabstract%3Frss%3Dyes I was pleased to read the editorial in the September 2011 issue (Kokich VG. How do you determine the quality of the evidence? Am J Orthod Dentofacial Orthop 2011;140:283). This led me to serious thoughts and a sigh of relief that a constructive effort is being launched in the AJO-DO with the prime goal to help readers understand statistics and research design. It is a known fact that quality research leads to better and more predictable treatment. Statistics, like any other science, is a developing discipline. Unlike in previous years, much of our understanding of research articles today relies on extrapolation and careful analysis of the statistical method. Misunderstanding of the use of statistical methods can have important implications in the implementation of research findings in clin... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457726 Thu, 01 Dec 2011 05:00:00 +0100 5457726 http://www.medworm.com/index.php?rid=5457725&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009814%2Fabstract%3Frss%3Dyes In the July Point/Counterpoint articles regarding evaluation and management of asymptomatic third molars, Dr Kandasamy made a strong assertion that the American Association of Oral and Maxillofacial Surgeons’ (AAOMS) new guidelines for the extraction of asymptomatic third molars might be based more on a practice management decision rather than a biologic one (Kandasamy S. Evaluation and management of asymptomatic third molars: watchful monitoring is a low-risk alternative to extraction. Am J Orthod Dentofacial Orthop 2011;140:11-7). I have been a member of the American Association of Orthodontists (AAO) for 50 years and have never observed the orthodontic specialty to make policy based on anything less than what was best for the patient. I would assume that the AAOMS operates under the s... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457725 Thu, 01 Dec 2011 05:00:00 +0100 5457725 http://www.medworm.com/index.php?rid=5457724&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009875%2Fabstract%3Frss%3Dyes Although masticatory performance is most closely related to occlusal factors, it is difficult to determine precisely the interrelationships and their contributions to masticatory function. The research project of Lepley et al, reported in the May 2011 issue, was well designed and provided a general demonstration of masticatory performance and the influencing factors. But I want to draw attention to 3 aspects of the report. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457724 Thu, 01 Dec 2011 05:00:00 +0100 5457724 http://www.medworm.com/index.php?rid=5457723&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061100984X%2Fabstract%3Frss%3Dyes We thank Dr Li for the letter and agree with the closing sentence, that “there is still much work to do.” The influence of occlusion on temporomandibular joint (TMJ) morphology is controversial. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457723 Thu, 01 Dec 2011 05:00:00 +0100 5457723 http://www.medworm.com/index.php?rid=5457722&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009838%2Fabstract%3Frss%3Dyes I read with interest the July 2011 article about the location of the temporomandibular joint (TMJ) in normal occlusion (Vitral RWF, da Silva Campos MJ, Rodrigues AF, Fraga MR. Temporomandibular joint and normal occlusion: is there anything singular about it? A computed tomographic evaluation. Am J Orthod Dentofacial Orthop 2011;140:18-24). Although the authors should be applauded for several aspects of their study, it has some limitations to which I want to draw attention. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457722 Thu, 01 Dec 2011 05:00:00 +0100 5457722 http://www.medworm.com/index.php?rid=5457721&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009887%2Fabstract%3Frss%3Dyes It was with great approval that I read the July editorial, “How good are you?” (Kokich VG. How good are you? Am J Orthod Dentofacial Orthop 2011;140:1). I am very much aware that regularly checking yourself is essential for good care, and this is different from passing a board examination. The European Federation of Orthodontic Specialists Organizations, an umbrella organization of national orthodontic associations and societies in Europe, has been active in motivating orthodontists to participate in its self-assessment system (ESAS), which is available online. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457721 Thu, 01 Dec 2011 05:00:00 +0100 5457721 http://www.medworm.com/index.php?rid=5457720&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009784%2Fabstract%3Frss%3Dyes I received the following e-mail from a general dentist who heard me lecture on interdisciplinary orthodontics.Dear Dr Kokich:I am hoping that you might provide me with some insight about a case that I am struggling with. A patient was referred to me 4 years ago at 12 years of age. She is missing four maxillary permanent teeth and a mandibular incisor and will eventually need implants. I placed some temporary restorations on some of her narrow maxillary anterior teeth so the orthodontist could bracket these teeth and improve their position. He recently sent the patient back to me to approve the tooth position prior to bracket removal, stating that he thought she was ready for restorations. I met with him in my office to discuss her case. I told the orthodontist that I wished that he had lef... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5457720 Thu, 01 Dec 2011 05:00:00 +0100 5457720 http://www.medworm.com/index.php?rid=5386759&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009462%2Fabstract%3Frss%3Dyes Conclusions: Fluoride may reduce the volume of root resorption craters. This effect is significant with heavy force applications (P  (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386759 Tue, 01 Nov 2011 04:00:00 +0100 5386759 http://www.medworm.com/index.php?rid=5386758&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009450%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386758 Tue, 01 Nov 2011 04:00:00 +0100 5386758 http://www.medworm.com/index.php?rid=5386757&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009449%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386757 Tue, 01 Nov 2011 04:00:00 +0100 5386757 http://www.medworm.com/index.php?rid=5386756&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009437%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386756 Tue, 01 Nov 2011 04:00:00 +0100 5386756 http://www.medworm.com/index.php?rid=5386755&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009693%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386755 Tue, 01 Nov 2011 04:00:00 +0100 5386755 http://www.medworm.com/index.php?rid=5386754&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008614%2Fabstract%3Frss%3Dyes (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386754 Tue, 01 Nov 2011 04:00:00 +0100 5386754 http://www.medworm.com/index.php?rid=5386753&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006755%2Fabstract%3Frss%3Dyes A key feature of a randomized control trial is the process of randomization. Through randomization, we allocate interventions to trial arms in a way that ensures that neither the investigators nor the participants know or can predict ahead of time which treatment a subject will receive. Proper randomization procedures and reporting include the following steps. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386753 Tue, 01 Nov 2011 04:00:00 +0100 5386753 http://www.medworm.com/index.php?rid=5386752&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007773%2Fabstract%3Frss%3Dyes Dr J: I’m in the middle of treatment on this young female patient who came in the other day with bugs in her hair. I mean, I can see them crawling around. They are small and white. I spoke to the patient and her mother about it, and they said that they are not lice but, rather, are “bugs from our house.” Her doctor has been treating her for the condition with a “special shampoo,” but it has not worked. I feel very uncomfortable being so close to her head with those bugs crawling all around. I’m also worried about my assistants as well as other patients in the office who would be there when this patient comes in for her appointments. I don’t know whether it is ethical or legal to suspend her treatment until the condition is cleared up, but I really have a problem with the pote... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386752 Tue, 01 Nov 2011 04:00:00 +0100 5386752 http://www.medworm.com/index.php?rid=5386751&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006846%2Fabstract%3Frss%3Dyes Conclusions: For the protocol used in this study, CBCT can be used to quantitatively assess buccal bone height and buccal bone thickness with high precision and accuracy. Comparing the 2 sets of CBCT measurements, buccal bone height had greater reliability and agreement with direct measurements than did the buccal bone thickness measurements. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386751 Tue, 01 Nov 2011 04:00:00 +0100 5386751 http://www.medworm.com/index.php?rid=5386750&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006834%2Fabstract%3Frss%3Dyes The aim of this article was to relate the clinical case of an HIV-positive orthodontic patient who reported that her cheeks had been hurting since treatment began. We started with the data collected in anamnesis and by contact with the patient’s physician, and a diagnosis of facial lipodystrophy as a result of the use of retroviral drugs was reached. The patient was referred to a dermatologist for treatment of the facial lipodystrophy. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386750 Tue, 01 Nov 2011 04:00:00 +0100 5386750 http://www.medworm.com/index.php?rid=5386749&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006883%2Fabstract%3Frss%3Dyes Conclusions: The accelerated osteogenic orthodontic technique is a safe and effective treatment option for mandibular anterior decompensation treatment of these patients. When combined with a temporary skeletal anchorage device and bone augmentation, this technique facilitated the decompression of the mandibular anterior teeth in severely compromised dentitions. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386749 Tue, 01 Nov 2011 04:00:00 +0100 5386749 http://www.medworm.com/index.php?rid=5386748&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006895%2Fabstract%3Frss%3Dyes Sickle cell anemia is a common hereditary hematologic disease. It affects many systems and tissues in the body, including the mouth. Delayed tooth eruption, an uncommon degree of periodontitis, alterations in the cells of the tongue surface, hypomaturation and hypomineralization in enamel and dentin, pulp calcifications, hypercementosis, and bone alterations resulting in maxillary protrusion and formation of a thick trabecular pattern are some oral manifestations of the disease. The aim of this study was to report the orthodontic treatment of a patient with sickle cell anemia. Treatment consisted of correcting a Class II dental and skeletal pattern with an extraoral appliance combined with a fixed orthodontic appliance. From the orthodontic point of view, the results were satisfactory: the... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386748 Tue, 01 Nov 2011 04:00:00 +0100 5386748 http://www.medworm.com/index.php?rid=5386747&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006767%2Fabstract%3Frss%3Dyes Despite the different orthodontic treatment options for patients with Class II subdivision malocclusions, the involvement of the skeletal structures is significant. It is desirable to combine orthodontic and surgical treatment to achieve a stable and better esthetic result, as illustrated in this case report. The occlusal plane was canted to the right as a part of the patient’s facial asymmetry. Consequently, a 3-mm differential impaction of the maxilla on the left side allowed occlusal plane leveling. Mandibular rotation with advancement on the right side corrected the right Class II malocclusion. The successful attainment of the treatment goals was accomplished through teamwork and integration between the orthodontist and the maxillofacial surgeon. (Source: American Journal of Orthodon... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386747 Tue, 01 Nov 2011 04:00:00 +0100 5386747 http://www.medworm.com/index.php?rid=5386746&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061100686X%2Fabstract%3Frss%3Dyes Introduction: The purposes of this in-vivo study were to compare the modes of failure of uncoated and adhesive precoated metal brackets by using the adhesive remnant index, and to assess the quality of the enamel surface after cleanup by using the enamel damage index.Methods: Twelve Victory brackets (group A) and 12 Victory adhesive precoated brackets (group B) (both, 3M Unitek, Monrovia, Calif) were bonded onto the maxillary second premolars of 12 volunteers. The uncoated brackets were bonded with Transbond XT adhesive resin (3M Unitek). Replicas of the teeth were made before bonding (T0), after bracket removal (T1), and after cleanup (T2). Scanning electron microscope images of all labial enamel surfaces were taken at T0, T1, and T2, and these were evaluated according to the adhesive rem... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386746 Tue, 01 Nov 2011 04:00:00 +0100 5386746 http://www.medworm.com/index.php?rid=5386745&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006858%2Fabstract%3Frss%3Dyes Conclusions: Tooth positioners caused a clinically significant improvement in interocclusal contacts, interproximal contacts, and net objective grading system score; mild improvement in posterior band space was noted after molar band removal 1 week before debond. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386745 Tue, 01 Nov 2011 04:00:00 +0100 5386745 http://www.medworm.com/index.php?rid=5386744&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006792%2Fabstract%3Frss%3Dyes Introduction: The form and the size of a dental arch are products of the configuration and the naturally established balance of the jaw, alveolar bone, and muscles. We investigated which arch dimensions mostly discriminate particular dentoalveolar classes and sexes.Methods: Plaster dental casts were collected from 137 white adolescent subjects (71 girls, 66 boys) aged between 15 and 18 years (mean, 16.0 ± 1.2 years) with Class I (43 subjects: 24 girls, 19 boys), Class II (50 subjects: 28 girls, 22 boys), and Class III (44 subjects: 19 girls, 25 boys) malocclusions. Casts were scanned with the ATOS II SO (small objects) scanner (GOM mbH, Braunschweig, Germany) and measured with ATOS Viewer software (version 6.0.2; GOM mbH).Results: The major discriminating factors of the particular dentoal... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386744 Tue, 01 Nov 2011 04:00:00 +0100 5386744 http://www.medworm.com/index.php?rid=5386743&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006780%2Fabstract%3Frss%3Dyes Conclusions: Occlusion status affects a person’s perceptions comprehensively. Subjects with normal occlusion were rated the most positively. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386743 Tue, 01 Nov 2011 04:00:00 +0100 5386743 http://www.medworm.com/index.php?rid=5386742&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006779%2Fabstract%3Frss%3Dyes The objective of this prospective randomized controlled trial was to determine the effectiveness of a new product, MI Paste Plus (GC America, Alsip, Ill), in the prevention or reduction of white spot lesions in orthodontic patients.Methods: Sixty patients who were undergoing routine orthodontic treatment were recruited for this prospective randomized clinical trial. A double-blind method of randomization was used to determine whether each patient received the MI Paste Plus or a placebo paste (Tom’s of Maine, Salisbury, United Kingdom). Each patient was asked to administer the paste by using a fluoride tray for a minimum of 3 to 5 minutes each day at night after brushing. Photographic records obtained in a light-controlled environment were used to record the presence or absence of white s... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386742 Tue, 01 Nov 2011 04:00:00 +0100 5386742 http://www.medworm.com/index.php?rid=5386741&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006718%2Fabstract%3Frss%3Dyes Conclusions: The “ideal” posterior occlusion concepts as a general orthodontic treatment goal should be reconsidered. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386741 Tue, 01 Nov 2011 04:00:00 +0100 5386741 http://www.medworm.com/index.php?rid=5386740&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061100672X%2Fabstract%3Frss%3Dyes Conclusions: The postoperative effects of surgically assisted rapid maxillary expansion did not persist in the long term. No correlation was found between objective and subjective findings. Subjects with pretreatment nasal obstruction, however, reported a lasting sensation of improved nasal function after surgically assisted rapid maxillary expansion. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386740 Tue, 01 Nov 2011 04:00:00 +0100 5386740 http://www.medworm.com/index.php?rid=5386739&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS088954061100638X%2Fabstract%3Frss%3Dyes Conclusions: Both anterior-to-posterior and coronal-to-cranial expansions were observed after rapid maxillary expansion treatment, with the direction of expansion most likely affected by resistance from the cranial bones. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386739 Tue, 01 Nov 2011 04:00:00 +0100 5386739 http://www.medworm.com/index.php?rid=5386738&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006378%2Fabstract%3Frss%3Dyes Introduction: Regression equations are widely used for mixed dentition analysis. However, estimations from these equations can vary in different population groups. The aim of this study was to produce simple linear equations and tables for Pakistani children.Methods: Two hundred subjects of Pakistani descent who met our criteria (ages, 13-15 years; 100 boys, 100 girls) were selected from local schools. The mesiodistal widths of all mandibular permanent incisors, canines, and premolars were measured and analyzed by using paired t tests. The results were also compared with predicted values from the Moyers and the Tanaka and Johnston methods. Correlation and linear regression analyses were performed between the predicted and actual tooth sizes for Pakistani children, and standard regression e... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386738 Tue, 01 Nov 2011 04:00:00 +0100 5386738 http://www.medworm.com/index.php?rid=5386737&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006299%2Fabstract%3Frss%3Dyes Conclusions: The Forsus fatigue resistant device did not appear to cause significant increases in mandibular dimensions in subjects in late puberty. According to the magnetic resonance image findings, Forsus treatment is not a risk factor for the development of temporomandibular dysfunction in subjects with no signs and clinical symptoms of dysfunction. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386737 Tue, 01 Nov 2011 04:00:00 +0100 5386737 http://www.medworm.com/index.php?rid=5386736&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006305%2Fabstract%3Frss%3Dyes Conclusions: The potential for comparing the shape of the airway among subjects is possible. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386736 Tue, 01 Nov 2011 04:00:00 +0100 5386736 http://www.medworm.com/index.php?rid=5386735&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006366%2Fabstract%3Frss%3Dyes Introduction: The aim of this study was to evaluate the cytotoxicity of 3 orthodontic acrylic materials and 2 manipulation methods.Methods: The orthodontic acrylic materials Orthocryl EQ (Dentaurum, Ispringen, Germany), Orthoplast (Vertex Dental, Zeist, The Netherlands), and O-80 (Imicryl, Konya, Turkey) were prepared with 2 polymerization methods (doughing and spray on). Totally, 60 cylinders (5 × 2 mm), fabricated by using a different acrylic and method, were divided into 6 groups. Gingival fibroblasts were isolated from gingival connective tissue of systemically healthy subjects. Materials were incubated in Dulbecco's modified eagle's medium culture medium (Biological Industries, Beit Haemek, Israel) for 72 hours according to ISO 10993-5 standards (surface area to volume ratio of the s... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386735 Tue, 01 Nov 2011 04:00:00 +0100 5386735 http://www.medworm.com/index.php?rid=5386734&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006354%2Fabstract%3Frss%3Dyes Conclusions: The results of this study suggest that the apical region of the first premolar roots and the apical region of the first molar mesial root should be considered to be prone to resorption during posterior intrusion treatment. Posterior intrusion systems with force application from counterbalancing sites lead to a more uniform stress distribution and balanced intrusion than the mechanics with a transpalatal arch. For a balanced intrusion, root surface areas should be considered when determining the appropriate forces. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386734 Tue, 01 Nov 2011 04:00:00 +0100 5386734 http://www.medworm.com/index.php?rid=5386733&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006342%2Fabstract%3Frss%3Dyes Introduction: The aim of this prospective clinical trial was to assess the effects of varying force directions on the dynamic measurement of natural head position and orofacial airway dimensions of Class III patients during maxillary orthopedic protraction compared with an untreated control group.Methods: The conventional facemask group comprised 15 patients (8 girls, 7 boys; mean age, 9.6 ± 1.3 years), the modified facemask group comprised 15 patients (7 girls, 8 boys; mean age, 9.5 ± 1.5 years), and the control group comprised 15 subjects (7 girls, 8 boys; mean age, 9.8 ± 1.6 years). Natural head position measurements and cephalometric records were obtained from all subjects before and after treatment or the control period (approximately 1 year). An inclinometer and a portable data lo... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386733 Tue, 01 Nov 2011 04:00:00 +0100 5386733 http://www.medworm.com/index.php?rid=5386732&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006330%2Fabstract%3Frss%3Dyes Conclusions: Bone regenerate produced by rates of 1 and 2 mm per day of dentoalveolar distraction was similar in quality and quantity. Although less mature, the size and shape of the regenerate bone produced by rapid dentoalveolar distraction was comparable with the control bone. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386732 Tue, 01 Nov 2011 04:00:00 +0100 5386732 http://www.medworm.com/index.php?rid=5386731&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611006329%2Fabstract%3Frss%3Dyes Conclusions: Fluoride may reduce the volume of root resorption craters. This effect is significant with heavy force applications (P  (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386731 Tue, 01 Nov 2011 04:00:00 +0100 5386731 http://www.medworm.com/index.php?rid=5386730&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008201%2Fabstract%3Frss%3Dyes Proclination, or anterior movement, of the mandibular incisors is often achieved to correct anterior crowding, improve facial esthetics, or optimize the occlusion. It has been proposed that labial movement of the mandibular incisors can cause the gingival attachment to migrate apically. The purpose of this study was to review the literature in regard to the association of appliance-induced labial movements of the mandibular incisors and gingival recession. The authors searched electronic databases for studies with the following terms: “incisor,” “incisor proclination,” “tooth movement,” “orthodontic tooth movement,” “gingival recession,” and “orthodontic appliance.” The inclusion criteria included human clinical trials that focused on the labial movement of mandibul... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386730 Tue, 01 Nov 2011 04:00:00 +0100 5386730 http://www.medworm.com/index.php?rid=5386729&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611007219%2Fabstract%3Frss%3Dyes You have been teaching at a university program for quite some time, and you have just completed a complex treatment plan involving 4 premolar extractions. As you review the diagnostic records, your bright young resident asks your preference for the bracket prescription. You reply, but she leans forward and informs you that the system has been discontinued from the clinic’s inventory. You ask when and why this occurred, and the resident tells you that a representative from a competing company recently convinced the class that his company’s bracket system was far superior to any other analogous appliance. This discussion and the ensuing decision occurred over dinner at your city’s 5-star restaurant as well as courtside at a professional basketball game, both hosted by the company. As ... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386729 Tue, 01 Nov 2011 04:00:00 +0100 5386729 http://www.medworm.com/index.php?rid=5386728&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611009401%2Fabstract%3Frss%3Dyes Ho C, Türk T, Elekdaüğ-Türk S, Jones AS, Petocz P, Cheng LL, Darendeliler MA. Physical properties of root cementum: Part 19. Comparison of the amounts of root resorption between the right and left first premolars after application of buccally directed heavy orthodontic tipping forces. Am J Orthod Dentofacial Orthop 2011;140:e49-52. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386728 Tue, 01 Nov 2011 04:00:00 +0100 5386728 http://www.medworm.com/index.php?rid=5386727&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008237%2Fabstract%3Frss%3Dyes In July, I was given the opportunity to provide the “Counterpoint” response to White and Proffit’s “Point” article regarding the management of third molars. Drs White and Proffit have now responded to that and concluded that their “data show that most ‘symptom-free and pathology-free’ third molars will not remain pathology free over time. The bottom line: one can indeed do harm by doing nothing.” (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386727 Tue, 01 Nov 2011 04:00:00 +0100 5386727 http://www.medworm.com/index.php?rid=5386726&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008225%2Fabstract%3Frss%3Dyes In our article in the July issue on advising orthodontic patients about third molars, we believe that we gave a reasonable discussion based on the current data of the new findings about third molars and chronic oral inflammation, with its potential to affect health more generally (White RP Jr, Proffit WR. Evaluation and management of asymptomatic third molars: lack of symptoms does not equate to lack of pathology. Am J Orthod Dentofacial Orthop 2011;140:10-6). (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386726 Tue, 01 Nov 2011 04:00:00 +0100 5386726 http://www.medworm.com/index.php?rid=5386725&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008195%2Fabstract%3Frss%3Dyes Dr Laurance Jerrold’s recent article and commentary (Jerrold L. Limits to the standard of care. Am J Orthod Dentofacial Orthop 2011;139:858-9) was, as always, most thoughtful and timely. I very much appreciate his special expertise in the law and his talent for making legal topics relevant and even approachable to non-attorney readers. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386725 Tue, 01 Nov 2011 04:00:00 +0100 5386725 http://www.medworm.com/index.php?rid=5386724&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008833%2Fabstract%3Frss%3Dyes This letter contains feedback regarding the new AAO logo. People might regard this feedback as minute criticism, at which we orthodontists must excel. Among the hallmarks ingrained in clinical orthodontic practitioners are those of thoroughness, completeness, symmetry, and beauty. The new logo embodies few of those characteristics. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386724 Tue, 01 Nov 2011 04:00:00 +0100 5386724 http://www.medworm.com/index.php?rid=5386723&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008183%2Fabstract%3Frss%3Dyes The world of journalism is gradually transitioning from print to online versions of newspapers, magazines, and scientific journals. As a member of the American Association of Orthodontists, you can read the current issue of the AJO-DO on your computer or any handheld device that will allow you to access the Internet. But many of our readers prefer reading articles in print rather than on a screen. We understand this preference and have no current plans for eliminating the printed journal. (Source: American Journal of Orthodontics and Dentofacial Orthopedics) American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5386723 Tue, 01 Nov 2011 04:00:00 +0100 5386723 http://www.medworm.com/index.php?rid=5285755&cid=s_34438_11_f&fid=34438&url=http%3A%2F%2Fwww.ajodo.org%2Farticle%2FPIIS0889540611008298%2Fabstract%3Frss%3Dyes Proper sample size estimation is an important part of clinical trial methodology and closely related to the precision and power of the trial’s results. Trials with sufficient sample sizes are scientifically and ethically justified and more credible compared with trials with insufficient sizes. Planning clinical trials with inadequate sample sizes might be considered as a waste of time and resources, as well as unethical, since patients might be enrolled in a study in which the expected results will not be trusted and are unlikely to have an impact on clinical practice. Because of the low emphasis of sample size calculation in clinical trials in orthodontics, it is the objective of this article to introduce the orthodontic clinician to the importance and the general principles of sample s... American Journal of Orthodontics and Dentofacial Orthopedics journals http://www.medworm.com/rss/comments.php?id=5285755 Sat, 01 Oct 2011 04:00:00 +0100 5285755