DEVELOPMENTAL AND ERUPTIONAL DISTURBANCES OF PERMANENT SUCCESSORS ASSOCIATED WITH TRAUMATIC INJURY TO PRIMARY TEETH

Lim, Hyoung-Soo; Lee, Chang-Seop; Lee, Sang-Ho

Journal of the Korean Academy of Pediatric Dentistry 2001;28(2):255-260.
Published online May 31, 2001.

DEVELOPMENTAL AND ERUPTIONAL DISTURBANCES OF PERMANENT SUCCESSORS ASSOCIATED WITH TRAUMATIC INJURY TO PRIMARY TEETH

Hyoung-Soo Lim, Chang-Seop Lee, Sang-Ho Lee

Department of Pediatric Dentistry, College of Dentistry, Chosun University Trauma

유치열기의 외상으로 인한 계승 영구치의 발육 및 맹출장애

임형수, 이창섭, 이상호

조선대학교 치과대학 소아치과학교실

Abstract

Trauma to the primary incisors may cause developmental or eruptional disturbance of the permanent successors. Two cases illustrate developmental disturbances of arrested root formation, dilaceration, and eruptional disturbances of impaction, ectopic eruption of permanent successors caused by traumatic injury to deciduous incisors. The patient of the first case suffered trauma at the age of 4 years 7 months, causing alveolar bone fracture including the maxillary right primary central and lateral incisors that were immedi-ately extracted. The second patient had trauma episodes at the age of 3 years. Avulsion of the maxillary primary right central and lateral incisors were occurred due to trauma. After such trauma, regular follow-up including radiographs is necessary to detect early any possible interference with normal eruption of permanent successors.

Key Words: Trauma, Primary dentition, Permanent successor, Developmental disturbance