IATROGENIC IMPACTION OF LOWER LEFT PERMANENT CANINE : CASE REPORT

Kim, Song-Yi; Choi, Sung Chul; Choi, Yeong Chul; Park, Jae-Hong

Journal of the Korean Academy of Pediatric Dentistry 2008;35(2):339-344.
Published online May 31, 2008.

IATROGENIC IMPACTION OF LOWER LEFT PERMANENT CANINE : CASE REPORT

Song-Yi Kim, Sung Chul Choi, Yeong Chul Choi, Jae-Hong Park

Department of Pediatric Dentistry and *Institute of Oral Biology, School of Dentistry, Kyung Hee University

하악 영구 견치의 의원성 매복에 대한 증례 보고

김송이, 최성철, 최영철, 박재홍

경희대학교 치과대학 소아치과학교실, *구강생물학연구소

Correspondence: Sung Chul Choi, Tel: 02-958-9371, Email: pedochoi@hotmail.com

Abstract

When a delayed eruption of tooth is diagnosed, the causative factor should be detected before an establishment of treatment plan, if possible. Although a panoramic radiograph is enough to evaluate the position of tooth and the stage of tooth development, a 3-D Dental CT would be a powerful tool to reveal a spatial relationships between objects. The reported case showed a delayed eruption of lower left permanent canine and a mini-plate with screws adjacent to the impacted canine. Although the screws adjacent to the root of impacted tooth showed a close proximity, it was not presumed that these screws would interfere the eruption of the tooth. The impacted canine did not show any spontaneous eruption during observation. After the mini-plate and screws were removed, an orthodontic traction using elastic power chain was performed. The position of mini-plates and screws should be carefully designed to avoid damaging the tooth follicles or tooth roots in the jaw. Also the screws should be removed before an orthodontic traction to prevent damaging the root surface of impacted tooth.

Key Words: Impaction, Iatrogenic, Lower permanent canine, Orthodontic traction, Early mixed dentition