Evaluation of condylar resorption rates after orthognathic surgery in class II and III dentofacial deformities: A systematic review

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Nunes de Lima, Valthierre [UNESP]
Faverani, Leonardo Perez [UNESP]
Santiago, Joel Ferreira
Palmieri, Celso
Magro Filho, Osvaldo [UNESP]
Pellizzer, Eduardo Piza [UNESP]
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The purpose of this study was to perform a systematic review of morphological alterations in the condyles after orthographic surgery involving a sagittal split ramus osteotomy (SSRO), with or without surgery on the maxilla. Searches were performed on three databases and registered in the PROSPERO. The selected studies fulfilled the criteria established by the following PICO model: (1) population: individuals with skeletal dentofacial deformities (class II or III facial patterns), without asymmetry; (2) intervention: orthognathic surgery for mandibular setback using an SSRO, with or without a Le Fort I osteotomy, and fixed with bicortical screws or plates and screws; (3) comparison: orthognathic surgery for mandibular advancement using an SSRO, with or without a Le Fort I osteotomy, and fixed with plates and screws or bicortical screws; and (4) outcome: condylar resorption rate and relapse. Initially, 1,371 articles were identified and 636 articles were screened after elimination of duplicates, and 6 articles were selected for qualitative analysis based on the inclusion and exclusion criteria. Five studies had data regarding the rate of condylar resorption, varying from 0.0% to 4.2%. In conclusion, condylar resorption and relapses were present in a small percentage of patients studied.
Mandibular condyle, Orthognathic surgery, Temporomandibular joint
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Journal of Cranio-Maxillofacial Surgery, v. 46, n. 4, p. 668-673, 2018.