Class - III malocclusion: Genetics or environment? A twins study

• Main Authors: Jena A, Duggal R, Mathur V, Parkash H
• Format: Article
• Language: English
• Published: Wolters Kluwer Medknow Publications 2005-03-01
• Series: Journal of Indian Society of Pedodontics and Preventive Dentistry
• Subjects: Class-Ill malocclusion; Genetics; monozygotic twins
• Online Access: http://www.bioline.org.br/request?05006

Etiology of class-III malocclusion is generally believed to be genetic. A wide range of environmental factors have been suggested as contributing factors for the development of class-III malocclusion. Twin study is one of the most effective methods available for investigating genetically determined variables of malocclusion. Discordancy for class-III malocclusion is a frequent finding in dizygotic twins. However, class-III malocclusion discordancy in monozygotic twins is a rare finding. The purpose of this study of monozygotic twins is to assess the genetic and environmental components of variation within the cranio-dento-facial complex.