Thesis. Perception of Differences in Lip Profile between 2-D and 3-D. AM Hansen.

Date: April 2016. Source: Master of Science in Dentistry. Dentistry Department. Virginia Commonwealth University. Background: Past studies evaluating the esthetics of orthodontic treatment have been done using 2-D images. New 3-D imaging offers an improved, real-life representation of a subject. The purpose of this study was to determine how laypeople perceived differences in lip position…

Evaluation of Soft Tissue Profile Change Following Bi-maxillary Surgery in Dento-skeletal Class III by Photogrammetric Analysis. A Torroni, G Gasparini, A Moro, G Saponaro, E Foresta, P De Angelis, D Cervelli, C Azzuni, R Boniello, L Pallottini, A Borelli, G Jafari, S Pelo, R Deli, and G Longo.

Date: April 2016 Source: British Journal of Medicine & Medical Research 15(2): 1-11, Article no. BJMMR.25350. Abstract: 3D analysis allows for simulation of orthognathic surgery and prediction of aesthetic and functional outcomes. Our study aims to find common and repeatable parameters on the behaviour of soft tissues following bone movement by pre- and post-treatment by…

Thesis. Validation of the Alberta Pediatric Obstructive Sleep Apnea (APOSA) Index for Orthodontic Treatment Need in Pediatric Patients with Obstructive Sleep Apnea Symptoms. N Nazarali.

Date: April 2016. Source: PhD Thesis. Medical Sciences, Orthodontics, University of Alberta. Objective: To determine the predictive ability of the Alberta Pediatric Obstructive Sleep Apnea (APOSA) Index for orthodontic treatment need in pediatric patients with obstructive sleep apnea symptoms. Methods: Thirty orthodontic records, representing a spectrum of craniofacial and oral features and severity, were evaluated…

Using the 3D Facial Norms Database to investigate craniofacial sexual dimorphism in healthy children, adolescents, and adults. MJ Kesterke, ZD Raffensperger, CL Heike, ML Cunningham, JT Hecht, CH Kau, NL Nidey, LM Moreno, GL Wehby, ML Marazita, and SM Weinberg.

Date: April 2016 Source: Biology of Sex Differences. Background: Although craniofacial sex differences have been extensively studied in humans, relatively little is known about when various dimorphic features manifest during postnatal life. Using cross-sectional data derived from the 3D Facial Norms data repository, we tested for sexual dimorphism of craniofacial soft-tissue morphology at different ages.…

Measuring Symmetry in Children With Unrepaired Cleft Lip: Defining a Standard for the Three-Dimensional Mid-facial Reference Plane. J Wu, C Heike, C Birgfeld, K Evans, M Maga, C Morrison, B Saltzman, L Shapiro, R Tse.

Date: March 2016 (Online ahead of print) Source: The Cleft Palate-Craniofacial Journal. Objective: Quantitative measures of facial form to evaluate treatment outcomes for cleft lip (CL) are currently limited. Computer-based analysis of three-dimensional (3D) images provides an opportunity for efficient and objective analysis. The purpose of this study was to define a computer-based standard of…

The Oropharyngeal Airway in Young Adults with Skeletal Class II and Class III Deformities: A 3-D Morphometric Analysis. YSN Jayaratne, RA Zwahlen.

Date: February 2016. Source: PLOS | One. Objective: 1) To determine the accuracy and reliability of an automated anthropometric measurement software for the oropharyngeal airway and 2) To compare the anthropometric dimensions of the oropharyngeal airway in skeletal class II and III deformity patients. Methods: Cone-beam CT (CBCT) scans of 62 patients with skeletal class…

Facial soft-tissue changes after rapid maxillary expansion analyzed with 3-dimensional stereophotogrammetry: A randomized, controlled clinical trial. A Baysal, MA Ozturk, AO Sahan, T Uysal.

Date: February 2016 (ONLINE AHEAD OF PRINT). Source: Angle Orthodontist Objective: To evaluate three-dimensional (3D) soft tissue facial changes following rapid maxillary expansion (RME) and to compare these changes with an untreated control group. Materials and Methods: Patients who need RME as a part of their orthodontic treatment were randomly divided into two groups of…

Reproducibility and reliability of three-dimensional soft tissue landmark identification using three-dimensional stereophotogrammetry. A Baysal, AO Sahan, MA Ozturk, T Uysal.

Date: February 2016 (ONLINE AHEAD OF PRINT). Source: Angle Orthodontist Objective: To evaluate the intraexaminer repeatability and interexaminer reproducibility of soft tissue landmarks on three-dimensional (3D) stereophogrammetric images. Materials and Methods: Thirty-four stereophotogrammetric images were taken and 19 soft tissue points were identified. The images were obtained using the 3dMDface (3dMD, Atlanta, USA) system. Two…

Facial morphology in children and adolescents with juvenile idiopathic arthritis and moderate to severe temporomandibular joint involvement. YJ Hsieh, TA Darvann, NV Hermann, P Larsen, YF Liao, J Bjoern-Joergensen, S Kreiborg.

Date: February 2016 Source: American Journal of Orthodontics & Dentofacial Orthopedics. Volume 149, Issue 2, Pages 182–191. Highlights: • We evaluated lateral facial morphology of juvenile idiopathic arthritis patients with moderate and severe TMJ involvement. • Differences in their lateral facial morphologies between unilateral and bilateral TMJ involvement were also assessed. Introduction: The aims of…

Does powdering of the dentition increase the accuracy of fusing 3D stereophotographs and digital dental casts. FA Rangel, YT Chiu, TJJ Maal, EM Bronkhorst, SJ Bergé, AM Kuijpers-Jagtman.

Date: January 2016 (Online) Source: The European Journal of Orthodontics. Objective: The shiny vestibular surfaces of teeth make it difficult to match digital dental casts to 3D stereophotogrammetric images of patient teeth. This study tested whether reducing this shininess by coating the teeth with titanium-oxide powder might improve the accuracy of the matching procedure. Methods:…