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ErratumEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In Schendel SA, Lane C: 3D orthognathic surgery prediction using image fusion. Semin Orthod 15:48-56, 2009, Dr Chris Lane's affiliation is incorrectly published as Professor of Radiology and Imaging Science, University of Louisville School of Dentistry, Louisville, KY. This affiliation should appear as follows: Chief Executive Officer, 3dMD. (Source: Seminars in Orthodontics)
Source: Seminars in Orthodontics - August 31, 2009 Category: Dentistry Source Type: journals

Facial Soft Tissue: The Alpha and Omega of Treatment Planning in Orthognathic SurgeryEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The soft tissues of the face are attached to and are draped over the underlying hard tissues. Logically, then, it may be expected that there is a mutual relationship which in the long run will determine the appearance and balance of the soft tissues. The dilemma has been that these relationships are not constant overall but appear to vary from site to site. The research on which the papers in this Journal have been based has been directed at ascertaining as accurately as possible the patterns between relative movements of the hard and soft tissues at selected sites. These data may then be applied in a prediction analysis w...
Source: Seminars in Orthodontics - August 31, 2009 Category: Dentistry Authors: Antony G.H. McCollum, William G. Evans Source Type: journals

Sagittal Soft-Tissue Changes of the Lower Lip and Chin Associated with Surgical Maxillary Impaction and Consequent Mandibular AutorotationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
A retrospective cephalometric study was undertaken to assess the sagittal soft-tissue changes of the lower lip and chin in 22 patients who exhibited autorotation of the mandible after surgical vertical impaction of the maxilla. Lateral cephalometric radiographs were taken immediately before surgery and on average 15 months after surgery. Sixteen cephalometric landmarks were digitized by the use of a Kontron Videoplan Image Analysis System (Kontron Messgerate, GmbH, Image-analysis-systems, Eching/München, West Germany). The comparison between those cases that received maxillary elevation only and 6 cases that had additiona...
Source: Seminars in Orthodontics - August 31, 2009 Category: Dentistry Authors: Beata K. Ksiezycki-Ostoya, Antony G.H. McCollum, Pieter J. Becker Source Type: journals

Sagittal Soft-Tissue Changes Related to the Surgical Correction of Maxillary-Deficient Class III MalocclusionsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This retrospective study on cephalometric head films assessed the sagittal soft-issue changes in relation to the underlying hard tissue changes resulting from maxillary surgical correction in 26 Class III cases. Thirteen patients received additional mandibular surgery. The radiographs were taken immediately before surgery and from 3 to 16 months after surgery. Twenty-six cephalometric landmarks were identified, and 6 linear and 7 angular measurements on each radiograph were digitally recorded relative to X-Y coordinates traced on the radiographs. This system enabled the recording of horizontal and vertical changes of the h...
Source: Seminars in Orthodontics - August 31, 2009 Category: Dentistry Authors: Antony G.H. McCollum, John T. Dancaster, William G. Evans, Pieter J. Becker Source Type: journals

Soft-Tissue Changes Related to Mandibular Advancement SurgeryEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This retrospective study assessed the relationship between the soft-tissue contours of the lower lip and chin and the underlying hard tissues consequent to surgical advancement of the mandible in the endeavour to enhance prediction in treatment planning. Cephalometric head films of 25 cases, 7 of which had advancement genioplasties, were available at presurgical, early postsurgical, intermediate, and long-term stages. Nineteen cephalometric landmarks were located and the data measured relative to X-Y coordinates constructed on the head films and were recorded on a Kontron video plan computer (Kontron Messgerate, GmbH, Imag...
Source: Seminars in Orthodontics - August 31, 2009 Category: Dentistry Authors: Antony G.H. McCollum, Graham J.M. Gardener, William G. Evans, Pieter J. Becker Source Type: journals

IntroductionEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Why not spend some time in determining what is worthwhile for us and then go after that? William Ross. What makes the discipline of orthognathic surgery worthwhile for orthodontists is the potential to achieve not only a healthy well-balanced functional occlusion but also an accompanying considerable improvement in esthetics. Realizing that potential, however, poses several problems, for we have to rely on the accuracy of our predictions of treatment outcome. (Source: Seminars in Orthodontics)
Source: Seminars in Orthodontics - August 31, 2009 Category: Dentistry Authors: Antony G.H. McCollum Source Type: journals

Table of ContentsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
(Source: Seminars in Orthodontics)
Source: Seminars in Orthodontics - August 31, 2009 Category: Dentistry Source Type: journals

Editorial BoardEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
(Source: Seminars in Orthodontics)
Source: Seminars in Orthodontics - August 31, 2009 Category: Dentistry Source Type: journals

Future IssuesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
(Source: Seminars in Orthodontics)
Source: Seminars in Orthodontics - June 1, 2009 Category: Dentistry Source Type: journals

Effects of Mandibular Advancement Device (MAD) on Airway Dimensions Assessed With Cone-Beam Computed TomographyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Upper airway constriction is an important contributing factor to obstructive sleep apnea (OSA), which may be treated in a palliative manner with mandibular advancement devices (MADs) to increase patency of the airway. It may be the treatment of choice for affected individuals who cannot use a continuous positive airway pressure device or who are not candidates for surgical correction of OSA. The specific distance applied during mandibular advancement, however, is often arbitrarily determined. This project uses cone beam computed tomography imaging in patients with OSA to determine a quantifiable relationship between airway...
Source: Seminars in Orthodontics - June 1, 2009 Category: Dentistry Authors: Jennifer A. Haskell, John McCrillis, Bruce S. Haskell, James P. Scheetz, William C. Scarfe, Allan G. Farman Source Type: journals

Evaluation of Obstructive Sleep Apnea Syndrome by Computational Fluid DynamicsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The amelioration of obstructive sleep apnea syndrome (OSAS) by maxillomandibular advancement (MMA) surgery can be predicted by analyzing anatomical airway changes with 3-dimensional (3D) geometrical reconstruction and computational fluid dynamics. Computer Enabling Technology Lab (ETLab) and Computational Simulation Lab (CSLab) can be used to analyze anatomic airway change for previously operated patients with a clinical cure of OSAS. MMA surgery reduces airway resistance and pressure effort (gradient) of OSAS by increasing the dimension of the airway. ETLab has been used to reconstruct the upper airway as a 3D computer mo...
Source: Seminars in Orthodontics - June 1, 2009 Category: Dentistry Authors: Somsak Sittitavornwong, Peter D. Waite, Alan M. Shih, Roy Koomullil, Yasushi Ito, Gary C. Cheng, Deli Wang Source Type: journals

Surgical Maxillomandibular Advancement TechniqueEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Some of the most severe forms of obstructive sleep apnea are attributed to anatomic abnormalities in the facial skeleton. With the use of conventional orthognathic surgical techniques, it is possible to expand the posterior airway. In fact, there is strong evidence in the literature to support maxillomandibular advancement as one of the most efficacious surgical procedures for the treatment of obstructive sleep apnea (OSA). There are complications associated with this procedure but these are minor when compared with the risk of inadequately treated OSA. (Source: Seminars in Orthodontics)
Source: Seminars in Orthodontics - June 1, 2009 Category: Dentistry Authors: Kok Weng Lye, Joseph R. Deatherage Source Type: journals

Surgical Procedures for the Treatment of Obstructive Sleep ApneaEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Obstructive sleep apnea (OSA) syndrome is a serious health problem that affects a large number of individuals. Research in the field has improved our understanding of the disease, and a holistic management of the OSA patient is becoming widely adopted. When continuous positive airway pressure (CPAP) and dental appliance have failed, surgical procedures to improve the posterior airway are performed. When chosen correctly, these procedures have tremendous benefit to the airway and can potentially cure this devastating syndrome. (Source: Seminars in Orthodontics)
Source: Seminars in Orthodontics - June 1, 2009 Category: Dentistry Authors: Kok Weng Lye, Joseph R. Deatherage Source Type: journals

An Overview of Oral Appliances and Managing the Airway in Obstructive Sleep ApneaEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This article gives an overview on the use of oral appliances in managing airway patency of pediatric and adult patients with OSA. (Source: Seminars in Orthodontics)
Source: Seminars in Orthodontics - June 1, 2009 Category: Dentistry Authors: Mimi Yow Source Type: journals

Normal Sleep ArchitectureEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Normal sleep is a complex and critical physiological activity. It is characterized by discrete neurological patterns that represent different stages of sleep. To have restful sleep, each phase of sleep must be completed; otherwise, sleep disruption will result. Disruption of sleep architecture will result in excessive daytime somnolence and can lead to systemic disease. (Source: Seminars in Orthodontics)
Source: Seminars in Orthodontics - June 1, 2009 Category: Dentistry Authors: Joseph R. Deatherage, R. David Roden, Kenneth Zouhary Source Type: journals

IntroductionEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Obstructive sleep apnea syndrome is a serious condition that afflicts a substantial number of individuals. It is characterized by disruption of normal sleep architecture by complete or partial obstruction of respiratory airflow. Airflow obstruction results in a reduction of blood oxygen saturation know as hypoxemia. It produces arousal in an attempt to reopen the airway. These recurring arousals disrupt sleep architecture, which diminishes the quality of sleep. This cycle results in excessive daytime somnolence, which is one of the hallmark features of this disease condition. Excessive daytime somnolence greatly diminishes...
Source: Seminars in Orthodontics - June 1, 2009 Category: Dentistry Authors: Joseph R. Deatherage Source Type: journals

Table of ContentsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
(Source: Seminars in Orthodontics)
Source: Seminars in Orthodontics - June 1, 2009 Category: Dentistry Source Type: journals

Editorial BoardEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
(Source: Seminars in Orthodontics)
Source: Seminars in Orthodontics - June 1, 2009 Category: Dentistry Source Type: journals