title: Condylar Resorption After Orthognathic Surgery: A Systematic Review.
abstract: The aim of this research was to evaluate the risk factors related to condylar resorption (CR) after orthognathic surgery. Was realized a systematic review with a search of the literature performed in the electronic databases PubMed, MedLine, Ovid, Cochrane Library for current evidence in the world literature as conducted, and relevant articles were selected in according to inclusion and exclusion criteria and the findings were compared. Eight papers, (follow-up 12 months to 69 months) were including. A sample of 2567 patient with mandible or bi maxillary surgery with an age range from 14 to 46 year old was observed. In 137 patients (5.3%) CR was observed, with a 97.6% (122) female. CR was related to 118 cases with mandibular deficiencies with high mandibular plane (advancement surgery). CR were present principally in bi maxillary surgery with a 103 cases (75.2%) and only two papers show any analysis to the relation with TMJ dysfunction. Current evidence in CR is poor but supports those female patients with mandibular deficiency and high mandibular plane angle submitted to bi maxillary surgery with change in occlusal plane (counterclockwise) are associated with condylar resorption after orthognathic surgery.
authors.affiliation: Oral and Maxillofacial Surgery, Division of Oral and Maxillofacial Surgery, Piracicaba Dental School, State University of Campinas, Piracicaba, S P, Brazil.
authors.forename: Paulo Hemerson
authors.initials: PH
authors.lastname: de Moraes
authors.affiliation: Department of Prosthetics and Periodontics, Piracicaba Dental School, State University of Campinas, Piracicaba, SP, Brazil.
authors.forename: Célia Marisa
authors.initials: CM
authors.lastname: Rizzati-Barbosa
authors.affiliation: Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, Universidad de La Frontera, Chile.
authors.forename: Sergio
authors.initials: S
authors.lastname: Olate
authors.affiliation: Division of Oral and Maxillofacial Surgery, Piracicaba Dental School, State University of Campinas, Piracicaba, SP, Brazil.
authors.forename: Roger Willian Fernandes
authors.initials: RW
authors.lastname: Moreira
authors.affiliation: Division of Oral and Maxillofacial Surgery, Piracicaba Dental School, State University of Campinas, Piracicaba, SP, Brazil.
authors.forename: Márcio
authors.initials: M
authors.lastname: de Moraes
keywords: Condylar resorption; Orthognathic surgery; TMJ dysfunction