Li Jing, Zhao Yi-Jiao, Liu Yi, Zhou Yan-Heng
Department of Orthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, China.
Zhonghua Kou Qiang Yi Xue Za Zhi. 2012 Nov;47(11):675-9. doi: 10.3760/cma.j.issn.1002-0098.2012.11.009.
To analyze the changes in facial feature region during posed smile three dimensionally.
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.
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.
Posed smile was asymmetric. Displacement variation and ratio are different at facial feature regions.Women shows greater changes around lips during posed smile.
三维分析摆位微笑时面部特征区域的变化。
使用FaceScan光学三维传感器采集44名志愿者（18名男性，26名女性，年龄26.7±2.6岁）在摆位微笑和休息位时的三维面部图像。对这些扫描得到的三维图像进行处理，并使用商用逆向建模软件进行叠加。通过彩色地图对摆位微笑时面部特征区域的变化进行定量和定性三维分析。
摆位微笑时变化区域占（29.65±8.40）%，左右半脸差异为6.69%（2.07%，13.11%）。在摆位微笑时，每个受试者的口角、颧区、下唇均有位移。在鼻唇沟处，女性[（4.49±1.51）mm]比男性[（3.25±1.75）mm]变化更大。
摆位微笑是不对称的。面部特征区域的位移变化和比例不同。女性在摆位微笑时唇部周围变化更大。
Zotero 插件