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Yonsei medical journal · Dec 2009
Analysis of soft tissue changes after genioplasty in skeletal class III dentofacial deformity.
- Su-Kwon Kim and Su-Gwan Kim.
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Chosun University, Dong-gu, Gwangju, Korea.
- Yonsei Med. J. 2009 Dec 31; 50 (6): 814817814-7.
PurposeThe purpose of this study was to measure the anteroinferior changes and the degree of vertical changes to facilitate the prediction of treatment outcome in patients undergoing genioplasty only, genioplasty with bilateral sagittal split ramus osteotomy (BSSRO), genioplasty, or BSSRO and Lefort I osteotomy.Materials And MethodsSerial cephalometry was performed on 25 patients at 1-year follow-up after genioplasty, to assess skeletal changes and relapse. Surgery was performed using conventional techniques.ResultsThe mean ratio was 0.9:1 of soft tissue to skeletal movement at pogonion, but the average difference between hard and soft tissue was large; thus, the prediction of anteroposterior soft tissue changes was quite inaccurate.ConclusionWe observed a good correlation between the amount of hard versus soft tissue change with surgery in the horizontal direction, but a poor correlation in the vertical plane.
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