CONSERVATIVE ENDODONTIC TREATMENT OF PERMANENT TEETH WITH PERIAPICAL LESIONS : CASE REPORTS

Yoon, Young-Mi; Lee, Nan-Young; Lee, Sang-Ho

Journal of the Korean Academy of Pediatric Dentistry 2011;38(3):276-283.
Published online August 31, 2011.

CONSERVATIVE ENDODONTIC TREATMENT OF PERMANENT TEETH WITH PERIAPICAL LESIONS : CASE REPORTS

Young-Mi Yoon, Nan-Young Lee, Sang-Ho Lee

Department of Pediatric Dentistry, College of Dentistry, Chosun University

치근단 병소를 가진 영구치의 보존적 치수 치료

윤영미, 이난영, 이상호

조선대학교 치과대학 소아치과학교실

Correspondence: Nan-Young Lee, Tel: 062-220-3860, Email: nandent@chosun.ac.kr

Received: 16 March 2011 • Accepted: 20 June 2011

Abstract

Recently, undifferentiated stem cells which exist in dental papillae of immature permanent teeth were newly discovered and these stem cells appear to be the origin of ameloblasts associated with the formation of root dentin. When treating immature permanent teeth, the preservation of these stem cells induce the continuous formation of the root. Therefore, it is reported that minimal invasion to periapical region in immature permanent teeth with periapical inflammation resulted in good-healing pattern in clinical and radiographic examination. In this case, a 10 year-old boy(mandibular right premolar) and a 8 year-old girl(maxillary left premolar) who visited the department of pediatric dentistry at Chosun University Dental Hospital were diagnosed with pulp necrosis and periapical abscess in clinical and radiographic examination. Endodontic instrumentation to the periapical region was limited and MTA(Mineral Trioxide Aggregate) was applied into the pulp canal. The periodic checks showed healing of periapical abscess and the development and growth pattern of roots. In permanent teeth with pulp necrosis and periapical abscess, preservation of pulp and dental papillae in the periapical region showed good prognosis during the periodic examinations. Therefore, a lot of clinical examination and long-term evaluation of conservative pulp treatment in immature permanent teeth are expected to be necessary.

Key Words: Periapical lesion, Conservative pulp treatment, MTA(Mineral Trioxide Aggregate)