Systematic review of Bimaxillary Protrusion
Bimaxillary protrusion is prevalent among Asians. It is routinely treated by extraction of first premolars in both the jaws followed by retraction of anterior incisors. In severe cases,anterior subapical osteotomies are indicated. To identify the outcome of bimaxillary protrusion after surgical correction, literature was searched using PubMed, Scopus, Web of Science, and the Cochrane Library with predetermined keywords. Full articles meeting the inclusion criteria were retrieved. References lists were also manually searched for potentially eligible studies. The results will be shown in this session. Discussion will also be made with articles that summary the treatment outcome of traditional extraction therapy. Surgical correction of bimaxillary protrusion by using anterior subapical osteotomies can lead to a successful outcome with reduction of the labial prominence and an increased nasolabial angle. Comparing with traditional extraction therapy, patients with gummy smile, basal bone discrepancy, relatively normal incisor inclination, and underdeveloped chin position can benefit more from surgical correction.