Gingival zenith level, position, and symmetry: A systematic review and meta-analysis
The gingival zenith (GZ) influences the line angle position in the emergence profile and the axial inclination of the crown. Irregularities in GZ symmetry and contour have a negative impact on dental esthetics. GZ location is not consistently distal to the crown's long axis; instead, it tends to be more distal in anterior teeth. The GZ levelling of the lateral incisor is often described as either level with or slightly above the zenith line connecting the central incisor and canine teeth, but there are also reports of GZ being aligned apically to the zenith line. (Source: Journal of Prosthetic Dentistry)
Source: Journal of Prosthetic Dentistry - May 3, 2024 Category: Dentistry Authors: Felipe V. Martins, Carolina Miller Mattos de Santana, Marcela Bara úna Magno, Lucianne Cople Maia, Edgard M. Fonseca, Ronaldo Barcellos de Santana Tags: Systematic review Source Type: research
Accuracy and resolution of conventional and additively manufactured silicone elastomers as applied in maxillofacial therapies
Silicone elastomers are becoming more readily available for additive manufacturing, which may be advantageous for fabricating maxillofacial prostheses. However, the properties of three-dimensionally (3D) printed silicone as compared with conventionally processed silicone have not been well studied. (Source: Journal of Prosthetic Dentistry)
Source: Journal of Prosthetic Dentistry - May 3, 2024 Category: Dentistry Authors: Jenna C. Hubacz, Angela Gullard, Ryan R. Sheridan, Antheunis Versluis Tags: Research and education Source Type: research
Registration of jaw movements using a custom attachment for a mandibular sensor
The accurate recording and reproduction of jaw movements are essential for dentists to make diagnoses and personalize treatments.1,2 Different digital methods of tracking jaw movements have gradually replaced traditional mechanical articulators and physical occlusal registrations because of their convenience, accuracy, and ability to preserve data.3,4 (Source: Journal of Prosthetic Dentistry)
Source: Journal of Prosthetic Dentistry - May 3, 2024 Category: Dentistry Authors: Changhong Zheng, Weimao Tang, Lei Li Tags: Tips from our readers Source Type: research
A method of fabricating a stackable CAD-CAM custom record tray for complete dentures
Digital complete denture fabrication has advanced with the integration of computer-aided design and computer-aided manufacturing (CAD-CAM), intraoral scanning, and 3-dimensional printing. A method of fabricating a stackable CAD-CAM custom record tray for complete dentures is introduced. The method combines a custom tray, record base, and occlusion rim in a single piece. (Source: Journal of Prosthetic Dentistry)
Source: Journal of Prosthetic Dentistry - May 3, 2024 Category: Dentistry Authors: Peixi Liao, Onkamon Budsabong Tags: Dental technique Source Type: research
Effect of scan body designs and internal conical angles on the 3-dimensional accuracy of implant digital scans
Axial displacement is inevitable when connecting scan bodies to implants for digital scans using intraoral scanners, and axial displacement may reduce implant position accuracy in digital casts. However, studies assessing scan body type and accuracy are lacking. (Source: Journal of Prosthetic Dentistry)
Source: Journal of Prosthetic Dentistry - April 30, 2024 Category: Dentistry Authors: Gang Soo Park, Jaeseung Chang, Se-Wook Pyo, Sunjai Kim Tags: Research and education Source Type: research
Fabrication of three-dimensionally printed polylactic acid nasal stent prosthesis for postnasal reconstruction using extraoral scanning and photogrammetry techniques: A report on two patients
Severe and combined nasal defects associated with trauma or neoplasm excision can cause significant functional and esthetic problems. To avoid nasal synechia following reconstructive surgeries, a nasal stent prosthesis is required to act as an internal scaffold to support the graft and residual tissues. The purpose of the stent is to maintain internal airway patency and to prevent collapse and contracture of the donor tissues. A conventional nasal stent prosthesis has disadvantages, including the difficulty in maintaining adequate thickness and internal patency during fabrication. (Source: Journal of Prosthetic Dentistry)
Source: Journal of Prosthetic Dentistry - April 29, 2024 Category: Dentistry Authors: Manu Rathee, S. Divakar, Shefali Singla, Sarthak Singh Tomar Tags: Clinical report Source Type: research
Axial and tilted implant surgical technique assisted by an autonomous dental implant robot: A clinical report
Optimal implant placement is essential for long-term implant survival and satisfactory prosthodontic outcomes. Autonomous dental implant robots have been reported to achieve accurate implant placement with satisfactory outcomes. This clinical report describes the use of an autonomous dental implant robot for axial and tilted implant placement in an edentulous mandible. (Source: Journal of Prosthetic Dentistry)
Source: Journal of Prosthetic Dentistry - April 29, 2024 Category: Dentistry Authors: Guangna Yue, Weiqin Huang, Beimiao Weng, Shaohai Wang Tags: Clinical report Source Type: research
Effect of preparation design on fracture strength of compromised molars restored with direct composite resin restorations: An in vitro and finite element analysis study
More data are needed on the influence of preparation design on the fracture strength, failure type, repairability, and polymerization-induced cracks of molar teeth restored with direct composite resin restorations. (Source: Journal of Prosthetic Dentistry)
Source: Journal of Prosthetic Dentistry - April 26, 2024 Category: Dentistry Authors: Jelte W. Hofsteenge, Marco Aurelio Carvalho, Elenoor L.F. Botenga, Marco S. Cune, Mutlu Özcan, Pascal Magne, Marco M.M. Gresnigt Tags: Research and education Source Type: research
Efficacy of laser biostimulation for mandibular narrow ridges treated with one-stage ridge splitting and two-implant overdentures: A one-year preliminary study
The management of patients with narrow-mandibular ridges who seek prosthetic rehabilitation is challenging. (Source: Journal of Prosthetic Dentistry)
Source: Journal of Prosthetic Dentistry - April 25, 2024 Category: Dentistry Authors: Fatma Ahmad El-Waseef, Marwa Adel Helmy, Wael Mohamed Said Ahmed, Salah Abdelfattah Hegazy, Noha Hosny El-Shaheed Tags: Clinical research Source Type: research
Automated facial landmark measurement using machine learning: A feasibility study
Information regarding facial landmark measurement using machine learning (ML) techniques in prosthodontics is lacking. (Source: Journal of Prosthetic Dentistry)
Source: Journal of Prosthetic Dentistry - April 25, 2024 Category: Dentistry Authors: Merve Koseoglu, Remya Ampadi Ramachandran, Hatice Ozdemir, Maretaningtias Dwi Ariani, Funda Bayindir, Cortino Sukotjo Tags: Clinical research Source Type: research
Predicting maximum occlusal force and tongue pressure using decision tree analysis in patients diagnosed with head and neck tumors
Preserving and restoring oral functions, especially mastication and swallowing, is important to the quality of life of patients being treated for head and neck tumors. Studies that help predict maximum occlusal force and tongue pressure during prosthetic treatment, necessary for providing comprehensive, appropriate treatment and encouraging patient adherence and confidence are lacking. (Source: Journal of Prosthetic Dentistry)
Source: Journal of Prosthetic Dentistry - April 24, 2024 Category: Dentistry Authors: Ziyi Bai, Xuewei Han, Yuka Sumita, Mariko Hattori, Kosuke Maki, Marwa Ahmed Aboelez, Noriyuki Wakabayashi Tags: Clinical research Source Type: research
Rotational path removable partial mandibular resection prostheses: A case series of patients with mandibular symphyseal defects
Rotational path removable partial mandibular resection prostheses (MRPs) offer advantages in the management of patients with acquired symphyseal defects of the mandible, including enhanced esthetics achieved through a reduced number of clasps, the provision of rigid retainers less prone to distortion compared with flexible alternatives, and the ability to engage prominent proximal undercuts in patients lacking buccal undercuts. Additionally, removable partial MRPs represent a suitable treatment option in scenarios where the cost of implant-retained prostheses is prohibitive or in patients where implant therapy is contraind...
Source: Journal of Prosthetic Dentistry - April 24, 2024 Category: Dentistry Authors: Andre Cataluna, Denny Chao, Kalie McCulloch, Jay Jayanetti Tags: Clinical report Source Type: research
Digital intraoperative evaluation of restorative space and nontemplate-guided tooth preparation when replacing failed anterior restorations: A dental technique
This article describes a digital workflow for the accurate chairside evaluation of the current restorative space and nontemplate-guided tooth preparation. Reference data was obtained from an initial scan of the existing restoration with an intraoral scanner. (Source: Journal of Prosthetic Dentistry)
Source: Journal of Prosthetic Dentistry - April 23, 2024 Category: Dentistry Authors: Chenyang Xie, Manlin Sun, Zijing He, Haiyang Yu Tags: Dental technique Source Type: research
Effect of surgical and prosthodontic protocols of distal extension implant-supported removable partial dentures on clinical and patient-reported outcomes: A systematic review
Standard surgical and prosthodontic protocols for managing partially dentate patients with implant-supported removable partial dentures (ISRPDs) are lacking. (Source: Journal of Prosthetic Dentistry)
Source: Journal of Prosthetic Dentistry - April 22, 2024 Category: Dentistry Authors: Wye Lum See, Teck Long Khoo, Mandakini Mohan, Smita Nimbalkar, Pravinkumar G. Patil Tags: Systematic review Source Type: research
Mechanical properties of tissue adhesives used for retaining extraoral silicone prostheses in maxillofacial defects: A systematic review
Different tissue adhesives are available for retaining extraoral silicone prostheses in maxillofacial defects. Comparative assessment of their mechanical properties will help the clinician select the right product for a specific clinical situation, but a systematic review is lacking. (Source: Journal of Prosthetic Dentistry)
Source: Journal of Prosthetic Dentistry - April 22, 2024 Category: Dentistry Authors: Jaini J.L., Manju V., Jayakumar Rangasamy, Venkitachalam Ramanarayanan, Priya K. Nair Tags: Systematic review Source Type: research
