Automatic Assessment of 3-Dimensional Facial Soft Tissue Symmetry Before and After Orthognathic Surgery Using a Machine Learning Model. LJ Lo, CT Yang, CT Ho, CH Liao, HH Lin.

3dMD Customer Research, Computer Science | Computer Vision, Medical, 3dMDface, Craniofacial/Cleft, Plastics

This study applied the transfer learning model with a convolutional neural network based on 3-dimensional (3D) contour line features to evaluate the facial symmetry before and after OGS. A total of 158 patients were recruited in a retrospective cohort study for the assessment and comparison of facial symmetry before and after OGS from January 2018 to March 2020. Three-dimensional facial photographs were captured by the 3dMD face system in a natural head position, with eyes looking forward, relaxed facial muscles, and habitual dental occlusion before and at least 6 months after surgery.

Craniofacial Asymmetry from One to Three Years of Age: A Prospective Cohort Study with 3D Imaging. AM Launonen, V Vuollo, H Aarnivala, et al.

3dMD Customer Research, Dental, Medical, 3dMDhead, Craniofacial/Cleft, Orthodontics, Plastics, Prosthetics, 3dMDhead System

Date: December 2019. Source: Journal of Clinical Medicine, 9, 70; doi:10.3390/jcm9010070. Abstract: Deformational plagiocephaly (DP) is considered a risk factor for facial asymmetry. This cohort-based, prospective, follow-up study used three-dimensional (3D) stereophotogrammetry to assess the development of facial asymmetry in a normal birth cohort and to investigate the impact of DP on facial asymmetry for…

Spatially Detailed 3D Quantification of Improved Facial Symmetry After Surgery in Children With Unicoronal Synostosis. L Öwall, TA Darvann, HB Hove, L Bøgeskov, S Kreiborg, NV Hermann.

3dMD Customer Research, Dental, Medical, 3dMDface, Craniofacial/Cleft, Oral and Maxillofacial, 3dMDtrio System

Date: August 2019. Source: The Cleft Palate-Craniofacial Journal, Volume: 56 issue: 7, page(s): 918-928. Objective: To assess improvement of soft-tissue facial symmetry in children surgically treated for unicoronal synostosis (UCS) in infancy, to correlate pre- and postsurgical facial asymmetry and to evaluate whether the improvement was visually recognizable.Presenter: Design: Case–controlled follow-up. Patients/Settings: Eleven Danish children…

Both the Observer’s Expertise and the Subject’s Facial Symmetry Can Affect Anatomical Position of the Head. PH Sutton, J Gateno, JD English, J Paranilam, JF Teichgraeber, JJ Xia.

3dMD Customer Research, Dental, Medical, 3dMDface, Craniofacial/Cleft, Oral and Maxillofacial, Orthodontics, Plastics, 3dMDface System

Date: October 2018. Source: Journal of Oral and Maxillofacial Surgery. Purpose: It is easier for us to judge facial deformity when the patient’s head is in anatomic position. The purposes of this study were to determine: 1) if a group of expert observers agree more than a group of non-experts on what is the correct…