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Prediction of long-term success of orthopedic treatment in skeletal Class III malocclusions

 Yoon Jeong Choi  ;  Jeong Eun Chang  ;  Chooryung J. Chung  ;  Ji Hyun Tahk  ;  Kyung-Ho Kim 
 American Journal of Orthodontics and Dentofacial Orthopedics, Vol.152(2) : 193-203, 2017 
Journal Title
 American Journal of Orthodontics and Dentofacial Orthopedics 
Issue Date
Cephalometry ; Child ; Extraoral Traction Appliances* ; Female ; Humans ; Male ; Malocclusion, Angle Class III/pathology ; Malocclusion, Angle Class III/therapy* ; Treatment Failure ; Treatment Outcome
INTRODUCTION: We investigated the long-term success of orthopedic treatment in skeletal Class III malocclusions, established a model to predict its long-term success, and verified previously reported success rates and prediction models. METHODS: Fifty-nine patients who underwent successful facemask treatment and were followed until growth completion were evaluated. After completion of growth, the patients were divided into successful and unsuccessful groups according to overjet, overbite, and facial profile. Pretreatment cephalometric measurements were compared between groups, and logistic regression analysis was used to identify the predictors of long-term success. Four previously published articles were selected to verify the success rate and predictability of the prediction models with regard to our patient sample. RESULTS: The treatment success rate was 62.7%. The AB-mandibular plane angle, Wits appraisal, and the articular angle were identified as predictors. The success rates differed according to success criteria and patient characteristics. The prediction models proposed by the 4 previous studies and our study showed similar predictabilities (61.0%-64.4%) for our patient sample. The predictability for the unsuccessful group was low. CONCLUSIONS: Our results suggest that no particular method or factor can predict the long-term success of orthopedic treatment for skeletal Class III malocclusion.
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2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyung Ho(김경호) ORCID logo https://orcid.org/0000-0002-8154-2041
Chung, Chooryung J.(정주령) ORCID logo https://orcid.org/0000-0001-9399-7193
Choi, Yoon Jeong(최윤정) ORCID logo https://orcid.org/0000-0003-0781-8836
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