SUPERNUMERARY TOOTH IN THE PRIMARY MOLAR REGION: CASE REPORT

Park, Mi-Seon; Park, Ho-Won; Lee, Ju-Hyun; Seo, Hyun-Woo

Journal of the Korean Academy of Pediatric Dentistry 2011;38(1):51-55.
Published online February 28, 2011.

SUPERNUMERARY TOOTH IN THE PRIMARY MOLAR REGION: CASE REPORT

Mi-Seon Park, Ho-Won Park, Ju-Hyun Lee, Hyun-Woo Seo

Department of Pediatric Dentistry, Oral Science Research Center, School of Dentistry, Gangneung-wonju National University

상악 유구치부에 발생한 과잉치의 치험례

박미선, 박호원, 이주현, 서현우

강릉원주대학교 치과대학 소아치과학교실 및 구강과학연구소

Correspondence: Hyun-Woo Seo, Tel: 033-640-2758, Email: hwseo@kangnung.ac.kr

Received: 17 September 2010 • Accepted: 2 December 2010

Abstract

Supernumerary teeth are dental abnormalies in the permanent dentition and the primary dentition. The etiology is unclear, but it may occur due to dichotomy of the tooth bud or hyperactivity of dental lamina. They occur more in the permanent dentition than in the primary dentition, with the most common site being the premaxillary area. Supernumerary teeth can be classified by morphology and position. Supplemental tooth refers to normal shape tooth. The treatment of supernumerary teeth depends on its shape, position, effect on dentition, and child's physiological condition. In this case, supernumerary primary tooth in the maxillary molar area was revealed by radiographical and clinical examination, but it was difficult to determine which is the supernumerary tooth. The tooth on the mesial side was extracted to induce the formation of adequate space and to prevent excessive space loss, and the result was favorable.

Key Words: Supernumerary primary tooth, Supplemental tooth, Tooth drifting