Minimally Invasive Tooth-Borne Midline Symphyseal Distraction Osteogenesis: A Case Report

Abstract

Abstract This case report presents the successful non-extraction treatment of transverse mandibular deficiency with midline symphyseal distraction osteogenesis. A 9-year old male with the main complaint of his upper front teeth too far forward presented for an orthodontic consultation. He had incompetent lips which were protruding and closing with a lot of strain. There are prominent upper incisor display, increased over-jet and narrow mandibular arch leading to scissor bite on examination. A 2-phase treatment comprising expansion of the lower jaw with MSDO to normalize jaw development and orthodontic correction of dental protrusion after the eruption of permanent teeth. The mandibular expansion was achieved with a tooth-borne distractor resulting in normal arch width and space creation for the relief of anterior crowding.