CONSERVATIVE APPROACH ON THE SEVERELY DISPLACED ROOT FRACTURE OF PRIMARY INCISORS : CASE REPORT

Kim, Jee-young; Lee, Kwang-Hee; Kim, Dae-Eop; Ra, Ji-young; Lee, Dong-Jin

Journal of the Korean Academy of Pediatric Dentistry 2008;35(3):571-577.
Published online August 31, 2008.

CONSERVATIVE APPROACH ON THE SEVERELY DISPLACED ROOT FRACTURE OF PRIMARY INCISORS : CASE REPORT

Jee-young Kim, Kwang-Hee Lee, Dae-Eop Kim, Ji-young Ra, Dong-Jin Lee

Department of Pediatric Dentistry, College of Dentistry, Wonkwang University

심하게 변위된 유전치 치근파절의 보존적 접근

김지영, 이광희, 김대업, 라지영, 이동진

원광대학교 치과대학 소아치과학교실

Correspondence: Kwang-Hee Lee, Tel: 063-859-2957, Email: kwhlee@wonkwang.ac.kr

Received: 28 August 2007 • Accepted: 17 March 2008

Abstract

Root fracture of primary teeth is relatively uncommon because the more pliable alveolar bone allows displacement of the tooth. Root fracture of primary teeth is occupied 2~7% in trauma pattern of primary teeth. A horizontal root fracture is classified based on the location of the fracture in relation to the root tip : the apical third, middle third, or cervical third of the root. The prognosis worsens the further cervically the fracture has occurrer. Root fracture of primary teeth should be treated by splinting the incisor to the adjacent normal teeth with a resin-wire splint for 8~12 weeks. However, if a portion of the root is abscessed or extremely mobile, it can be extracted, and the remaining root fragment will resorb normally. For coronal third fracture in primary teeth, the coronal third is extracted, leaving the apical portion of the root to resorb normally. These root fracture cases of primary teeth were treated by resin-wire splinting despite extremely mobile coronal fragment. Even though they seems like healing well, They need to be monitored regularly until their successors erupt.

Key Words: Root fracture, Primary incisor, Resin-wire splint