Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ijom.2022.08.013
Title: The role of anterior segmental osteotomies in orthognathic surgery for protrusive faces in a Southeast Asian population: 10-year retrospective data of 51 patients treated in a single centre
Authors: Yong, CW 
Sng, TJH 
Quah, B 
Lee, CKJ
Lim, AAT 
Wong, RCW 
Keywords: Complications
Dentofacial deformities
Orthodontics
Orthognathic surgery
Treatment outcome
Humans
Retrospective Studies
Orthognathic Surgery
Southeast Asian People
Osteotomy
Malocclusion
Maxilla
Jaw Abnormalities
Orthognathic Surgical Procedures
Issue Date: 1-Apr-2023
Publisher: Elsevier BV
Citation: Yong, CW, Sng, TJH, Quah, B, Lee, CKJ, Lim, AAT, Wong, RCW (2023-04-01). The role of anterior segmental osteotomies in orthognathic surgery for protrusive faces in a Southeast Asian population: 10-year retrospective data of 51 patients treated in a single centre. International Journal of Oral and Maxillofacial Surgery 52 (4) : 468-475. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijom.2022.08.013
Abstract: Bimaxillary protrusion is a dentofacial deformity common in the East Asian population. It is often difficult to decide between orthodontic and surgical retraction to treat patients with bimaxillary protrusion, especially if surgery to correct skeletal base discrepancies is also required. The objective of this study was to investigate the treatment outcomes of surgical versus orthodontic retraction in patients with bimaxillary protrusion undergoing orthognathic surgery. A retrospective cohort study was conducted, where the medical records and radiographs of 51 patients with bimaxillary protrusion who had an anterior segmental osteotomy concomitant with orthognathic surgery were examined. Patients who had bimaxillary anterior segmental osteotomies were more likely to achieve an inter-incisal angle of 135 ± 5° at the end of treatment, when compared to patients who had orthodontic retraction (P < 0.01). The total treatment duration of patients who had bimaxillary anterior segmental osteotomies was significantly shorter as compared to that of the patients who only had these osteotomies in the maxilla (P < 0.001) or mandible (P = 0.012). Complications and permanent long-term sequelae following anterior segmental osteotomies were uncommon. It is concluded that bimaxillary anterior segmental osteotomies are a viable alternative for patients with concomitant bimaxillary protrusion and skeletal base discrepancies. This allows for a significantly shorter treatment time and greater correction of inter-incisal angles, without a significant increase in complications.
Source Title: International Journal of Oral and Maxillofacial Surgery
URI: https://scholarbank.nus.edu.sg/handle/10635/238597
ISSN: 09015027
13990020
DOI: 10.1016/j.ijom.2022.08.013
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