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[Comparison of two kinds of methods evaluating the degree of facial asymmetry by three-dimensional data].
Xiong, Y X; Yang, H F; Zhao, Y J; Wang, Y.
Afiliação
  • Xiong YX; Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, China;Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China;National Engineering Laboratory for Digital and Material Technology of Stomatology, Pekin
  • Yang HF; Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, China;National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing 100081, China.
  • Zhao YJ; Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, China;National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing 100081, China.
  • Wang Y; Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, China;Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China;National Engineering Laboratory for Digital and Material Technology of Stomatology, Pekin
Beijing Da Xue Xue Bao Yi Xue Ban ; 47(2): 340-3, 2015 Apr 18.
Article em Zh | MEDLINE | ID: mdl-25882957
OBJECTIVE: To compare two digital methods of quantitatively accessing the degree of facial asymmetry by three-dimensional data. METHODS: The three-dimensional data of 20 subjects were got by the FaceScan, and then were input to the reverse engineering software Imageware 13.0 and Geomagic 12. Their mirror data were acquired and superimposed with the original data by the methods of interactive closest points (ICP) and Procrustes analysis (PA). The mid-sagittal planes of the two methods were extracted respectively, the degree of facial asymmetry and the distance of 21 automatic landmarks to mid-sagittal plane were calculated and compared. RESULTS: The paired t test was taken and t=1.346, P=0.193. CONCLUSION: We can safely come to the conclusions that for the subjects with no evident facial asymmetry, there are no significant difference between the PA and the ICP methods for extracting the mid-sagittal plane from three-dimensional data.
Assuntos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cefalometria / Imageamento Tridimensional / Face / Assimetria Facial / Hiperplasia Limite: Humans Idioma: Zh Ano de publicação: 2015 Tipo de documento: Article
Buscar no Google
Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cefalometria / Imageamento Tridimensional / Face / Assimetria Facial / Hiperplasia Limite: Humans Idioma: Zh Ano de publicação: 2015 Tipo de documento: Article