Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
dentistry
Use of 3-dimensional surface acquisition to study facial morphology in 5 populations
American Journal of Orthodontics and Dentofacial Orthopedics, Volume 137, No. 4 SUPPL., Year 2010
Notification
URL copied to clipboard!
Description
Introduction: The aim of this study was to assess the use of 3-dimensional facial averages for determining morphologic differences from various population groups. Methods: We recruited 473 subjects from 5 populations. Three-dimensional images of the subjects were obtained in a reproducible and controlled environment with a commercially available stereo-photogrammetric camera capture system. Minolta VI-900 (Konica Minolta, Tokyo, Japan) and 3dMDface (3dMD LLC, Atlanta, Ga) systems were used. Each image was obtained as a facial mesh and orientated along a triangulated axis. All faces were overlaid, one on top of the other, and a complex mathematical algorithm was performed until average composite faces of 1 man and 1 woman were achieved for each subgroup. These average facial composites were superimposed based on a previously validated superimposition method, and the facial differences were quantified. Results: Distinct facial differences were observed among the groups. The linear differences between surface shells ranged from 0.37 to 1.00 mm for the male groups. The linear differences ranged from 0.28 and 0.87 mm for the women. The color histograms showed that the similarities in facial shells between the subgroups by sex ranged from 26.70% to 70.39% for men and 36.09% to 79.83% for women. The average linear distance from the signed color histograms for the male subgroups ranged from -6.30 to 4.44 mm. The female subgroups ranged from -6.32 to 4.25 mm. Conclusions: Average faces can be efficiently and effectively created from a sample of 3-dimensional faces. Average faces can be used to compare differences in facial morphologies for various populations and sexes. Facial morphologic differences were greatest when totally different ethnic variations were compared. Facial morphologic similarities were present in comparable groups, but there were large variations in concentrated areas of the face. © 2010 American Association of Orthodontists.
Authors & Co-Authors
Kau, Chung How
United States, Birmingham
The University of Alabama at Birmingham
Richmond, Stephen
United Kingdom, Cardiff
Cardiff University
Zhurov, Alexei I.
United Kingdom, Cardiff
Cardiff University
Ovsenik, Maja
Slovenia, Ljubljana
Univerza V Ljubljani
Tawfik, Walid M.
Egypt, Giza
National Research Centre
Borbely, Peter
Unknown Affiliation
English, Jeryl D.
United States, Houston
University of Texas Health Science Center at Houston
Statistics
Citations: 87
Authors: 7
Affiliations: 5
Identifiers
Doi:
10.1016/j.ajodo.2009.04.022
ISSN:
08895406
Study Design
Cross Sectional Study
Participants Gender
Male
Female