The prevalence of Anterior and Lateral Displacement in Mashad Secondary School age 12

Abstract

Lateral and anterior displacements of mandible may cause malocclusion. The aim of this study was"nto determine the prevalence of these displacements in a population of 597 childrens age 12 in Mashhad"nsecondary schools. Displacment of mandible was shown to be in 11.8 percent of the population (6.2 percent"nanterior and 5.6 percent lateral displacement)."nAnterior displacement of mandible was diagnosed in all mandibie lateral displacements. Premature contacts"nwere observed in upper lateral incisors, second premolars and first molar in anterior and lateral"ndisplacements, respectively.

Keywords

• Mandibular displacement