Occlusal plane rotation and orthodontic decompensation: influence on the outcome of surgical correction of class III malocclusion

Purpose The aim of this retrospective multicenter study is to evaluate the influence of surgical manipulation of the upper occlusal plane (UOP) and orthodontic decompensation on the outcome of class III orthognathic surgery. Methods Incisor inclinations, occlusal plane inclination as well as skeleta...

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Bibliographic Details
Published in:Journal of orofacial orthopedics 2023-11, Vol.84 (6), p.373-383
Main Authors: Seker, Elif Dilara, Sunal Akturk, Ezgi, Yilmaz, Hanife Nuray, Kucukkeles, Nazan
Format: Article
Language:English
Subjects:
Dentistry
Medicine
Oral and Maxillofacial Surgery
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Summary:Purpose The aim of this retrospective multicenter study is to evaluate the influence of surgical manipulation of the upper occlusal plane (UOP) and orthodontic decompensation on the outcome of class III orthognathic surgery. Methods Incisor inclinations, occlusal plane inclination as well as skeletal and soft tissue changes were assessed in lateral cephalograms of 85 class III patients who had previously undergone orthognathic surgery. Fourteen linear and eight angular measurements were performed on each radiograph at the beginning of treatment (T0), before surgery (T1) and at the end of treatment (T2) using imaging software. After measurement of variables, Mann–Whitney U‑test, repeated-measures analysis of variance (ANOVA) with Bonferroni multiple comparison test, and Spearman’s correlation analysis were performed. Results A statistically significant improvement was observed in both sagittal skeletal and soft tissue measurements ( p  
ISSN:1434-5293
1615-6714
DOI:10.1007/s00056-022-00379-6