Preliminary evaluation on 3-demension changes of facial soft tissue with structure light scanning technique before and after orthognathic surgery of ClassⅢdeformities
10.3969/j.issn.1671-167X.2015.01.018
- VernacularTitle:结构光扫描对骨性Ⅲ类错牙合正畸正颌联合治疗前后软组织三维变化的初步评价
- Author:
Juxiang PENG
;
Jiuhui JIANG
;
Yijiao ZHAO
;
Yong WANG
;
Ze LI
;
Ningning WANG
;
Zhimin FENG
- Publication Type:Journal Article
- Keywords:
Malocclusion,Angle class Ⅲ;
Imaging,three-dimensional;
Face;
Structured light
- From:
Journal of Peking University(Health Sciences)
2015;(1):98-103
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate facial soft tissue 3-deminsion changes of skeletal Class Ⅲmalocclu-sion patients after orthognathic surgery using structure light scanning technique .Methods:Eight patients [3 males and 5 females, aged ( 27.08 ±4.42 ) years ] with Class Ⅲ dentoskeletal relationship who underwent a bimaxillary orthognathic surgical procedure involving advancement of the maxilla by Le FortⅠosteotomy and mandibular setback by bilateral sagittal split ramus osteotomy (BSSO) and genioplasty to correct deformity were included .3D facial images were obtained by structure light scanner for all the patients 2 weeks preoperatively and 6 months postoperatively .The facial soft tissue changes were evalua-ted in 3-dimension.The linear distances and angulation changes for facial soft tissue landmarks were ana-lyzed.The soft tissue volumetric changes were assessed too .Results: There were significant differences in the sagittal and vertical changes of soft tissue landmarks .The greatest amount of soft tissue change was close to lips.There were more volumetric changes in the chin than in the maxilla , and fewer in the forehead .Conclusion: After biomaxillary surgery , there were significant facial soft tissue differences mainly in the sagittal and vertical dimension for skeletal Class Ⅲ patients .The structure light 3 D scan-ning technique can be accurately used to estimate the soft tissue changes in patients who undergo orthog-nathic surgery .
