두부규격 방사선 사진을 이용한 미소 시의 중안면부 연조직의 변화량 측정
Cephalometric Evaluation of the Midfacial Soft Tissue Changes on Smiling
천강용, 신동환, 전원배, 조진용, 이호, 김수호, 김유진, 박형욱, 윤준용, 서미현, 이원덕, 서제덕,
소속 상세정보
천강용 ( Cheon Kang-Yong ) - 서울대학교 보라매병원 치과 구강악안면외과
신동환 ( Shin Dong-Whan ) - 서울대학교 보라매병원 치과 구강악안면외과
전원배 ( Chun Won-Bae ) - 서울대학교 보라매병원 치과 구강악안면외과
조진용 ( Cho Jin-Yong ) - 서울대학교 보라매병원 치과 구강악안면외과
이호 ( Lee Ho ) - 서울대학교 보라매병원 치과 구강악안면외과
김수호 ( Kim Soo-Ho ) - 서울대학교 치의학대학원 구강악안면외과학교실
김유진 ( Kim Eu-Gene ) - 서울대학교 치의학대학원 구강악안면외과학교실
박형욱 ( Park Hyong-Wook ) - 서울대학교 치의학대학원 구강악안면외과학교실
윤준용 ( Yun Jun-Yong ) - 서울대학교 치의학대학원 구강악안면외과학교실
서미현 ( Seo Mi-Hyun ) - 서울대학교 치의학대학원 구강악안면외과학교실
이원덕 ( Lee Won-Deok ) - 서울대학교 치의학대학원 구강악안면외과학교실
서제덕 ( Suh Je-Duck ) - 서울대학교 치의학대학원 구강악안면외과학교실
KMID : 0360120120340060421
Abstract
Purpose: The aim of this study is to compare the soft tissue changes of the midfacial area at the repose position and the natural smiling position for the improvement of evaluation and planning in the orthognathic surgery.
Methods: The total of 30 subjects, 15 male and 15 female, were included in this study. The metal point landmarks were placed at the cheek, orbital rim, subpupil, and nasal base. The movements of the landmarks were evaluated at the repose position and smiling position in the lateral and posteroanterior cephalograms. Paired t test and correlation analysis were used for the evaluation of the soft tissue changes statistically.
Results: In the lateral cephalograms, the cheek point (4.49 mm in female, 4.87 mm in male) showed the most distant movement. All points presented significant movements, except the orbital rim and nasal base point in male. Cheek point presented significant positive correlation between the horizontal and vertical change in male. Subpupil point presented significant positive correlation between horizontal and vertical change in both male and female. In the posteroanterior cephalograms, the nasal base point (5.41 mm in female, 6.30 mm in male) showed the most distant movement. Subpupil point and nasal base point presented significant movements in both female and male. Nasal base point presented significant negative correlation between the horizontal and vertical change in both male and female. In the lateral and posteroanterior cephalograms, the positional changes of all points presented significant positive correlation with each other in both female and male.
Conclusion: The cheek point in the sagittal view and the nasal base point in the frontal view showed the most distant movement on smile. In the sagittal view, the subpupil point and cheek point moved anteriorsuperiorly on smile. In the frontal view, the nasal base points moved laterosuperiorly on smile. In both the sagittal and frontal view, the positional changes of all point were highly correlated to each other. These results may be used in the soft tissue references for the treatment planning of the dentofacial deformity patients.
키워드
Smile;Facial movement;Midfacial area;Soft tissue change
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