Relapse in class II orthognathic surgery - a systematic review - University of Regensburg Publication Server

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Item type:	Article
Journal or Publication Title:	BMC Oral Health
Publisher:	Springer
Volume:	22
Date:	15 December 2022
Institutions:	Medicine > Lehrstuhl für Kieferorthopädie Medicine > Lehrstuhl für Zahnerhaltung und Parodontologie > Dr. rer. nat. Karl-Anton Hiller Central Institutions > University Library
Keywords:	Orthognathic surgery, Stability, Class II, Systematic review
Dewey Decimal Classification:	600 Technology > 610 Medical sciences Medicine
Status:	Published
Refereed:	Yes, this version has been refereed
Created at the University of Regensburg:	Yes
Item ID:	53305

Abstract

Objectives Relapse after orthognathic surgery seems to depend on diverse factors. Proffit et al. postulated in 2007 a “hierarchy of stability” (Head Face Med 6:66, 2007), ranking posttreatment stability after various orthognathic procedures, but no systematically reviewed evidence was provided. Therefore, the aim of this review was to investigate the extent of class II relapse in orthognathic ...

Abstract

Objectives
Relapse after orthognathic surgery seems to depend on diverse factors. Proffit et al. postulated in 2007 a “hierarchy of stability” (Head Face Med 6:66, 2007), ranking posttreatment stability after various orthognathic procedures, but no systematically reviewed evidence was provided. Therefore, the aim of this review was to investigate the extent of class II relapse in orthognathic surgery of Angle class II patients depending on the surgical procedure used.
Materials and methods
Seven databases were searched for randomized and controlled clinical trials to compare relapse in surgical procedures for Angle class II patients. After duplicate study selection, data extraction and risk of bias assessment were performed with the ROBINS-I tool as well as data synthesis by frequency distribution, followed by assessment of the quality of evidence with GRADE.
Results
Four non-randomized cohort-studies with a total of 132 patients were included. Bimaxillary procedures as well mandibular advancement procedures proved to be highly stable. Single jaw interventions at the maxilla achieved mostly stable results at sagittal dimension and problematic stability in the vertical dimension. However, there were only limited data available with low quality of evidence.
Conclusions
Limited existing evidence of low quality partly support the postulated hierarchy of stability of Proffit et al. (Head Face Med 6:66, 2007) and indicates that a surgical correction of class II dysgnathia with bimaxillary procedures and mandibular advancement seems to be highly stable. However, additional studies are needed to address the relation between relapse and surgical orthognathic intervention.

Relapse in class II orthognathic surgery - a systematic review

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