ISSN: 2578-482X
Authors: Jeyaraj P
Anterior maxillary subapical osteotomy (AMSO) followed by Premaxillary advancement, is an orthognathic surgical procedure which has been undertaken rather infrequently in the recent past, owing to its being overtaken by Premaxillary Distraction Osteogenesis (DO). This Case Report attempts to re-popularise this procedure, by elaborating its ease, efficacy, reliability, predictability, expedient outcome as well as long term stability. It offers several advantages in treating mild to moderate Skeletal Class III Dentofacial Disharmony cases with marked Anterior Crossbite & Reverse Overjet, over the relatively longdrawn management by DO. Its results, in terms of correction of both, the esthetic deformity as well as functional impairment (in speech and mastication), are almost immediately apparent. Additionally, it can be modified to a ‘Surgery First, Orthodontics After (SFOA)’ protocol, to further reduce the total treatment duration, and yield a speedy outcome, which is of particular benefit in young adult patients with an active lifestyle, offering a distinct psychological advantage by an immediate improvement in facial appearance, enunciation as well as masticatory function. This facilitates a ready patient acceptance for treatment, and also encourages optimal patient compliance during the post-surgical orthodontic phase.
Keywords: Dentofacial Disharmony; Skeletal Cl III Malocclusion; Anterior Crossbite and Reverse Overjet; Anterior Maxillary Subapical Osteotomy; Premaxillary Advancement
