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A More Accurate Method of Predicting Soft Tissue Changes After Mandibular Setback Surgery

Cited 25 time in Web of Science Cited 26 time in Scopus
Authors

Suh, Hee-Yeon; Lee, Shin-Jae; Lee, Yun-Sik; Donatelli, Richard E.; Wheeler, Timothy T.; Kim, Soo-Hwan; Eo, Soo-Heang; Seo, Byoung-Moo

Issue Date
2012-10
Publisher
American Association of Oral and Maxillofacial Surgeons
Citation
Journal of Oral and Maxillofacial Surgery Vol.70 No.10, pp. e553 - e562
Keywords
복합학
Abstract
Purpose: To propose a more accurate method to predict the soft tissue changes after orthognathic surgery.Patients and Methods: The subjects included 69 patients who had undergone surgical correction of Class III mandibular prognathism by mandibular setback. Two multivariate methods of forming prediction equations were examined using 134 predictor and 36 soft tissue response variables: the ordinary least-squares (OLS) and the partial least-squares (PLS) methods. After fitting the equation, the bias and a mean absolute prediction error were calculated. To evaluate the predictive performance of the prediction equations, a 10-fold cross-validation method was used.Results: The multivariate PLS method showed significantly better predictive performance than the conventional OLS method. The bias pattern was more favorable and the absolute prediction accuracy was significantly better with the PLS method than with the OLS method.Conclusions: The multivariate PLS method was more satisfactory than the conventional OLS method in accurately predicting the soft tissue profile change after Class III mandibular setback surgery. (C) 2012 American Association of Oral and Maxillofacial Surgeons J Oral Maxillofac Surg 70:e553-e562, 2012
ISSN
0278-2391
Language
English
URI
https://hdl.handle.net/10371/83353
DOI
https://doi.org/10.1016/j.joms.2012.06.187
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