Reducing cone beam CT scan height as a method of radiation reduction for photorealistic three-dimensional orthognathic planning. C Lin, TC Hsung, B Khambay.

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

Date: July 2015. Source: Journal of Cranio-Maxillofacial Surgery, 43(6):907-12. Objectives: To determine the superimposition accuracy of full-face stereophotographic images with 22 cm and 13 cm cone beam computed tomography (CBCT) scans. Material and methods: 22 cm CBCT scans and corresponding stereophotographic images (3dMD) for 30 subjects requiring orthognathic surgery were randomly selected. A 13 cm…

Recording and Transferring Head Positions to the Virtual Head Using a Multicamera System and Laser Level. KY Tian, ZL Xue, XJ Liu, X Wang, Z Li.

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

Date: June 2015. Source: Journal of Oral & Maxillofacial Surgery. Purpose: To fulfill the requirements of computer-aided orthognathic surgery, we developed a method of recording head positions in pitch and roll, and tested its accuracy and reliability. Materials and Methods: A laser level was used to project a horizontal laser line onto a volunteer’s face.…

A Solution to Face-to-Face Contact in Tele-Presence Systems. X Zhou, P Boulanger.

3dMD Customer Research, Dental, Genetics, Medical, 3dMDface, Computer Science, Craniofacial/Cleft, Oral and Maxillofacial, Orthodontics, Orthognathic, Plastics, Prosthetics, 3dMDface System

Date: June 2015 Source: 2015 12th Conference on Computer and Robot Vision (CRV) Proceedings (p 230 – 236), Halifax, Canada. Abstract: In tele-presence systems, direct face-to-face contact, is essential for emotional communication as it carries non-verbal clues. In commercial products, face-to-face contact is approximated by using either a large semi-transparent mirror to project an image…

Cephalometric analysis and long-term outcomes of orthognathic surgical treatment for obstructive sleep apnoea. ED Ubaldo, GM Greenlee, J Moore, E Sommers, and AM Bollen.

3dMD Customer Research, Dental, Medical, 3dMDface, 3dMDhead, Craniofacial/Cleft, Multimodal (CT/CBCT), Oral and Maxillofacial, Orthodontics, Orthognathic, Otolaryngology, Plastics, 3dMDface System, 3dMDhead System

Date: June 2015. Source: The International Journal of Oral and Maxillofacial Surgery, 44(6):752-9. Abstract: The aim of this study was to describe skeletal and posterior airway changes after orthodontic treatment and surgical jaw advancement, and to evaluate whether there is a correlation between increasing advancement and a long-term reduction in obstructive sleep apnoea (OSA). Lateral…

Comparison of three surgical techniques for controlling nasal width after Le Fort I osteotomy. ZQ Wang, XX Wang, ZL Li, B Yi, C Liang, X Wang.

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

Date: March 2015. Source: Beijing Da Xue Xue Bao (Journal of Peking University, Health Sciences), 47(1):104-108. OBJECTIVE: To identify nasal width changes occurring after Le Fort I osteotomy and to compare prospectively the effect of three surgical techniques for controlling postoperative nasal width. METHODS: In the study, 79 patients (22 male and 57 female, mean…

Monobloc Le Fort III Distraction Osteogenesis for Correction of Severe Fronto-orbital and Midface Hypoplasia in Pediatric Crouzon Syndrome. F Hariri, LK Cheung, ZA Rahman, V Mathaneswaran, D Ganesan.

3dMD Customer Research, Dental, Genetics, Medical, 3dMDface, Craniofacial/Cleft, Multimodal (CT/CBCT), Oral and Maxillofacial, Orthodontics, Orthognathic, Plastics, 3dMDface System

Date: February 2015. Source: The Cleft Palate-Craniofacial Journal. Abstract: In severe syndromic craniosynostosis, distraction osteogenesis (DO) provides superior segmental advancement and allows progressive clinical monitoring to ensure that adequate skeletal expansion is achieved. We report two cases of Crouzon syndrome involving a 3-year-old boy and a 4-year-old girl, who were both treated with monobloc Le…

Three-dimensional changes in nose and upper lip volume after orthognathic surgery. B van Loon, N van Heerbeek, F Bierenbroodspot, L Verhamme, T Xi, MJJ de Koning, KJAO Ingels, SJ Bergé, TJJ Maal.

3dMD Customer Research, Dental, Medical, 3dMDface, 3dMDhead, Oral and Maxillofacial, Orthodontics, Orthognathic, Plastics, 3dMDface System, 3dMDhead System

Date: January 2015 Source: International Journal of Oral and Maxillofacial Surgery, 44(1):83-9. Abstract: Orthognathic surgery aims to improve both the function and facial appearance of the patient. Translation of the maxillomandibular complex for correction of malocclusion is always followed by changes to the covering soft tissues, especially the nose and lips. The purpose of this study…

Nasal changes after orthognathic surgery for patients with prognathism and Class III malocclusion: Analysis using three-dimensional photogrammetry. S Worasakwutiphong; YF Chuang; HW Chang; HH Lin; PJ Lin; LJ Lo.

3dMD Customer Research, Dental, Medical, 3dMDface, 3dMDhead, Oral and Maxillofacial, Orthognathic, Plastics, 3dMDface System, 3dMDhead System

Date: December 2014. Source: Journal of the Formosan Medical Association. Background/Purpose. Orthognathic surgery alters the position of maxilla and mandible, and consequently changes the nasal shape. The nasal change remains a concern to Asian patients. The aim of this study was to measure the nasal changes using a novel three-dimensional photographic imaging method. Methods. A…

Recording of Natural Head Position Using Stereophotogrammetry: A New Technique and Reliability Study. TC Hsung, J Lo, TS Li, LK Cheung.

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

Date: November 2014 Source: Journal of Oral and Maxillofacial Surgery, 72(11): 2256-61. Abstract: The purpose of this study was to develop a technique to record physical references and orient digital mesh models to a natural head position using stereophotogrammetry (SP). The first step was to record the digital mesh model of a hanging reference board…

The validity of 3dMDvultus in predicting soft tissue morphology following orthognathic surgery. Rehan Ullah.

3dMD Customer Research, Dental, Medical, 3dMDface, Craniofacial/Cleft, Multimodal (CT/CBCT), Oral and Maxillofacial, Orthognathic, 3dMDface System

Date: July 2014. Source: British Association of Oral Maxillofacial Surgeons (BAOMS) Meeting 2014, Edinburgh, United Kingdom. Presentation: The validity of 3dMDvultus in predicting soft tissue morphology following orthognathic surgery. Presenter: Rehan Ullah.