title: Computer-aided planning in orthognathic surgery-systematic review.
abstract: The aim of this study was to conduct a systematic review to evaluate the accuracy and benefits of computer-aided planning in orthognathic surgery. The search was performed in PubMed, EMBASE, Cochrane Library, LILACS, and SciELO. The articles identified were assessed independently and in a blinded manner by two authors using selection criteria and eligibility criteria. The database search yielded 375 studies. Following the application of search and eligibility criteria, a final nine studies were included in the systematic review. The level of agreement between the authors in the study selection process was substantial (κ=0.767) and study eligibility was considered excellent (κ=0.863). The accuracy of translation was <1.2mm in the maxilla (vertical) and <1.1mm in the mandible (sagittal), and for rotation was <1.5° in the maxilla (pitch) and <1.8° in the mandible (pitch). Two studies showed a medium potential risk of bias and six studies showed a high potential risk of bias. Computer-aided planning in orthognathic surgery was considered accurate for the studies included in this systematic review. However, the low quality of these studies means that randomized clinical trials are needed to compare computer-aided planning to conventional planning in orthognathic surgery.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Pontificial Catholic University of Rio Grande do Sul - PUC/RS, Rio Grande do Sul, Brazil. Electronic address: olhj@hotmail.com.
authors.forename: O L
authors.initials: OL
authors.lastname: Haas
authors.affiliation: Department of Oral and Maxillofacial Surgery, Pontificial Catholic University of Rio Grande do Sul - PUC/RS, Rio Grande do Sul, Brazil.
authors.forename: O E
authors.initials: OE
authors.lastname: Becker
authors.affiliation: Department of Oral and Maxillofacial Surgery, Pontificial Catholic University of Rio Grande do Sul - PUC/RS, Rio Grande do Sul, Brazil.
authors.forename: R B
authors.initials: RB
authors.lastname: de Oliveira
keywords: CAD–CAM; orthognathic surgery; systematic review