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골격선 Ⅲ급 부정교합 환자의 양악수술시 수술전 예측치와 수술후 실측치 차이에 관한 연구

Other Titles
 A study on the preoperative prediction values versus the postoperative actual values in class 3 two jaw surgery patients 
Authors
 박준호  ;  황충주 
Citation
 Journal of Korean Association Maxillofacial Plastic Reconstructive Surgery (대한악안면성형재건외과학회지), Vol.25(3) : 238-248, 2003-03 
Journal Title
 Journal of Korean Association Maxillofacial Plastic Reconstructive Surgery (대한악안면성형재건외과학회지) 
ISSN
 1225-4207 
Issue Date
2003-03
Keywords
Skeletal Class Ⅲ malocclusion ; Double jaw surgery ; Prediction of surgery ; Postoperative change
Abstract
The purpose of this study was to find out and evaluate discrepancies between exact and prediction values in Class III surgical patients. 26 patients ( male 12, female 14) who were diagnosed as skeletal Class III and experienced presurgical orthodontic treatment and orthognathic surgery at Y university dental hospital were selected for this study. Lateral cephalograms were analyzed at prediction (T_(1)), immediately after surgery (T_(2)), 1 years after surgery (T_(3)), and specified the landmark as coordinates of X and Y axes. The samples were divided into 2 groups depending on the rotation point of maxilla (A point vs Incisal Edge). The statistical tools was SAS program and the statistical significance was tested The results were as follows : 1. Changes of hard tissue points (T_(1)-T_(2)) in x coordinates of ANS, A and in y coordinates of Me, Gn, Pg, B, Ii were statistically significant. 2. Change of soft tissue points (T_(1)-T_(2)) in x and y coordinates of Pn, Sn, STA, Ls, Li were statistically signinficant 3. Statistically significant changes in maxillary surgery rotated at A point were in x coordinates of Ls, Li and in y coordinates of Me, Gn, Pg, B, Ii, Gn' and in x,y coordinates of Pn, Sn, STA 4. Statistically significant changes in maxillary surgery rotated at Incisal edge were in x coordinates of ANS, A, Pn, Sn and in y coordinates of Me, Gn, Pg, B, Ii, Is, Ls, Li, Gn' and in x,y coordinates of STA 5. There were significant differences in Is, PNS, Pn compared between A point group and incisal edge rotation group 6. The maxillary plane angle showed significant difference at T_(2) - T_(3) and occlusal planes of maxilla and mandible did not show significant change after surgery. As followed above results, the changes between prediction and exact measurements were considered separately at all landmarks and relapse amount according to surgery were also considered to achieve more reasonable surgical results
Full Text
http://kiss.kstudy.com/thesis/thesis-view.asp?key=2105106
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
Yonsei Authors
Hwang, Chung Ju(황충주) ORCID logo https://orcid.org/0000-0003-3024-4551
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/178748
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