A new method to orient a 3-dimensional facial model to natural head position: A preliminary report on accuracy and reproducibility, AA Yin, Y Dong, X Zhang, BQ Song, SZ Bai.

3dMD Customer Research, Dental, Normative Study, Oral and Maxillofacial, Orthodontics, Orthognathic

To establish and validate a novel method to orient a 3-dimensional (3D) facial model to natural head position (NHP) in a stereophotogrammetric system using a 2-dimensional frontal full-face photograph of NHP.

Functional therapy and adenotonsillectomy clinical trial for class II malocclusion (FACT-II): protocol for a randomised controlled trial. F Guo, C Lv, B Tang, L Lin, C Zhang, J Zheng, T Zhao, H He.

3dMD Customer Research, Medical, Oral and Maxillofacial, Orthodontics, Otolaryngology, Plastics

In summary, this study will serve as evidence to guide clinicians in deciding whether to perform the T&A on patients prior to functional therapy based on a wide range of objectively and subjectively measured outcomes and provide a reference for multidisciplinary management of OSA with craniofacial alterations in growing children.

Network analysis of three-dimensional hard-soft tissue relationships in the lower 1/3 of the face: Skeletal Class I-normodivergent malocclusion versus Class II-hyperdivergent malocclusion. T Wang, K Nie, Y Fan, G Chen, K Xu, G Song, B Han, Y Pei, T Xu.

3dMD Customer Research, Dental, Multimodal (CT/CBCT), Oral and Maxillofacial, Orthognathic, Plastics

The aim of this study was to clarify the hard-soft tissue relationships of the lower 1/3 of the face in skeletal Class II-hyperdivergent patients compared with those in Class I-normodivergent patients using network analysis.

Fully automated landmarking and facial segmentation on 3D photographs. B Berends, F Bielevelt, R Schreurs, et al.

3dMD Customer Research, Computer Science | Computer Vision, Genetics, Medical, Computer Science, Craniofacial/Cleft, Oral and Maxillofacial, Orthodontics, Orthognathic, Plastics

A deep learning-based approach for automated landmark extraction from 3dMD facial photographs was developed and its precision was evaluated. The results showed high precision and consistency in landmark annotation, comparable to manual and semi-automatic annotation methods.

Automated three-dimensional analysis of facial asymmetry in patients with syndromic coronal synostosis: A retrospective study. TM Choi, X Liu, T Abdel-Alim, ML van Veelen, IMJ Mathijssen, EB Wolvius, GV Roshchupkin.

3dMD Customer Research, Computer Science | Computer Vision, Genetics, Oral and Maxillofacial, Plastics

101 patients from 2005 to 2022 were selected for inclusion according to the following criteria: diagnosis molecularly confirmed; were of Caucasian descent; had only premature fusion of left and/or right coronal suture(s); had undergone only one craniofacial surgery; were younger than 18 years; had undergone no orthodontic treatment; had no extraction of permanent teeth; and had not undergone maxillary osteotomy.