Cargando…
A novel three-dimensional smile analysis based on dynamic evaluation of facial curve contour
The influence of three-dimensional facial contour and dynamic evaluation decoding on factors of smile esthetics is essential for facial beauty improvement. However, the kinematic features of the facial smile contour and the contribution from the soft tissue and underlying skeleton are uncharted. Her...
Autores principales: | , , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4766427/ https://www.ncbi.nlm.nih.gov/pubmed/26911450 http://dx.doi.org/10.1038/srep22103 |
_version_ | 1782417665167458304 |
---|---|
author | Lin, Yi Lin, Han Lin, Qiuping Zhang, Jinxin Zhu, Ping Lu, Yao Zhao, Zhi Lv, Jiahong Lee, Mln Kyeong Xu, Yue |
author_facet | Lin, Yi Lin, Han Lin, Qiuping Zhang, Jinxin Zhu, Ping Lu, Yao Zhao, Zhi Lv, Jiahong Lee, Mln Kyeong Xu, Yue |
author_sort | Lin, Yi |
collection | PubMed |
description | The influence of three-dimensional facial contour and dynamic evaluation decoding on factors of smile esthetics is essential for facial beauty improvement. However, the kinematic features of the facial smile contour and the contribution from the soft tissue and underlying skeleton are uncharted. Here, the cheekbone-maxilla contour and nasolabial fold were combined into a “smile contour” delineating the overall facial topography emerges prominently in smiling. We screened out the stable and unstable points on the smile contour using facial motion capture and curve fitting, before analyzing the correlation between soft tissue coordinates and hard tissue counterparts of the screened points. Our finding suggests that the mouth corner region was the most mobile area characterizing smile expression, while the other areas remained relatively stable. Therefore, the perioral area should be evaluated dynamically while the static assessment outcome of other parts of the smile contour contribute partially to their dynamic esthetics. Moreover, different from the end piece, morphologies of the zygomatic area and the superior part of the nasolabial crease were determined largely by the skeleton in rest, implying the latter can be altered by orthopedic or orthodontic correction and the former better improved by cosmetic procedures to improve the beauty of smile. |
format | Online Article Text |
id | pubmed-4766427 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-47664272016-03-02 A novel three-dimensional smile analysis based on dynamic evaluation of facial curve contour Lin, Yi Lin, Han Lin, Qiuping Zhang, Jinxin Zhu, Ping Lu, Yao Zhao, Zhi Lv, Jiahong Lee, Mln Kyeong Xu, Yue Sci Rep Article The influence of three-dimensional facial contour and dynamic evaluation decoding on factors of smile esthetics is essential for facial beauty improvement. However, the kinematic features of the facial smile contour and the contribution from the soft tissue and underlying skeleton are uncharted. Here, the cheekbone-maxilla contour and nasolabial fold were combined into a “smile contour” delineating the overall facial topography emerges prominently in smiling. We screened out the stable and unstable points on the smile contour using facial motion capture and curve fitting, before analyzing the correlation between soft tissue coordinates and hard tissue counterparts of the screened points. Our finding suggests that the mouth corner region was the most mobile area characterizing smile expression, while the other areas remained relatively stable. Therefore, the perioral area should be evaluated dynamically while the static assessment outcome of other parts of the smile contour contribute partially to their dynamic esthetics. Moreover, different from the end piece, morphologies of the zygomatic area and the superior part of the nasolabial crease were determined largely by the skeleton in rest, implying the latter can be altered by orthopedic or orthodontic correction and the former better improved by cosmetic procedures to improve the beauty of smile. Nature Publishing Group 2016-02-25 /pmc/articles/PMC4766427/ /pubmed/26911450 http://dx.doi.org/10.1038/srep22103 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Lin, Yi Lin, Han Lin, Qiuping Zhang, Jinxin Zhu, Ping Lu, Yao Zhao, Zhi Lv, Jiahong Lee, Mln Kyeong Xu, Yue A novel three-dimensional smile analysis based on dynamic evaluation of facial curve contour |
title | A novel three-dimensional smile analysis based on dynamic evaluation of facial curve contour |
title_full | A novel three-dimensional smile analysis based on dynamic evaluation of facial curve contour |
title_fullStr | A novel three-dimensional smile analysis based on dynamic evaluation of facial curve contour |
title_full_unstemmed | A novel three-dimensional smile analysis based on dynamic evaluation of facial curve contour |
title_short | A novel three-dimensional smile analysis based on dynamic evaluation of facial curve contour |
title_sort | novel three-dimensional smile analysis based on dynamic evaluation of facial curve contour |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4766427/ https://www.ncbi.nlm.nih.gov/pubmed/26911450 http://dx.doi.org/10.1038/srep22103 |
work_keys_str_mv | AT linyi anovelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT linhan anovelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT linqiuping anovelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT zhangjinxin anovelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT zhuping anovelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT luyao anovelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT zhaozhi anovelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT lvjiahong anovelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT leemlnkyeong anovelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT xuyue anovelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT linyi novelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT linhan novelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT linqiuping novelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT zhangjinxin novelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT zhuping novelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT luyao novelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT zhaozhi novelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT lvjiahong novelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT leemlnkyeong novelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour AT xuyue novelthreedimensionalsmileanalysisbasedondynamicevaluationoffacialcurvecontour |