Genetic Influence of Class III Bimaxillary Proclination: A Case Report of Monozygotic Twins
Author(s): Liyana Ghazali*
Abstract
Introduction: Dental bimaxillary proclination is a common malocclusion among Asian and Afro-Caribbean population. Facial aesthetics is normally the primary concerns of the patients which characterized by protrusive and proclined upper and lower incisors with increased lips procumbency. Patients may be presented with anterior open bite, incompetent lips and gummy smile. Aim: The aim is to highlight the genetic influence in development of dental malocclusion: dental proclination. Case history: Cases of a pair of monozygotic female twins with Class III incisor relationship with bimaxillary proclination of upper and lower incisors on Class 1 skeletal pattern with average vertical proportion are presented. Both patients exhibited similar craniofacial and dental features undergone orthodontic camouflage to improve dental conditions. Pre and post cephalometric findings were found to be identical in both patients. Discussion: Genetic plays a major role in development of dental malocclusion which was clearly exhibited in monozygotic twins.