Preliminary three-dimensional analysis of posed smile / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 675-679, 2012.
Article
in Chinese
| WPRIM
| ID: wpr-260211
ABSTRACT
<p><b>OBJECTIVE</b>To analyze the changes in facial feature region during posed smile three dimensionally.</p><p><b>METHODS</b>The three-dimensional facial images during posed smiles and resting position in 44 volunteers (18 men, 26 women, 26.7 ± 2.6 years old) were acquired by using FaceScan optical three-dimensional sensor. These scanned three-dimensional images were processed and superimposed with commercially-available reverse modeling software. Quantitative and qualitative three dimensional analyses of changes in facial feature region during posed smile were done by using color maps.</p><p><b>RESULTS</b>The changing area accounted for (29.65 ± 8.40)% during posed smile, and the difference of the left and right half face was 6.69% (2.07%, 13.11%). Displacements in cheilion, zygomatic area, lower lip were detected in every subject during posed smile. Women [(4.49 ± 1.51) mm] gained more changes than men [(3.25 ± 1.75) mm] did in nasolabial fold.</p><p><b>CONCLUSIONS</b>Posed smile was asymmetric. Displacement variation and ratio are different at facial feature regions.Women shows greater changes around lips during posed smile.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Smiling
/
Sex Factors
/
Imaging, Three-Dimensional
/
Esthetics, Dental
/
Face
/
Lip
Type of study:
Prognostic study
/
Qualitative research
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Stomatology
Year:
2012
Type:
Article
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