Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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CONSERVATIVE ENDODONTIC TREATMENT OF PERMANENT TEETH WITH PERIAPICAL LESIONS : CASE REPORTS

치근단 병소를 가진 영구치의 보존적 치수 치료

  • Yoon, Young-Mi (Department of Pediatric Dentistry, College of Dentistry, Chosun University) ;
  • Lee, Nan-Young (Department of Pediatric Dentistry, College of Dentistry, Chosun University) ;
  • Lee, Sang-Ho (Department of Pediatric Dentistry, College of Dentistry, Chosun University)
  • 윤영미 (조선대학교 치과대학 소아치과학교실) ;
  • 이난영 (조선대학교 치과대학 소아치과학교실) ;
  • 이상호 (조선대학교 치과대학 소아치과학교실)
  • Received : 2011.03.16
  • Accepted : 2011.06.20
  • Published : 2011.08.31
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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.

최근 미성숙 영구치의 치근단 유두에서 존재하는 미분화 줄기세포가 새로 발견되었고 이 줄기세포들은 치근 상아질의 형성에 관여하는 법랑모세포의 근원으로 보여진다. 미성숙 영구치를 다룰때 이 줄기세포들의 보존은 치근의 지속적인 형성을 완성시키게 한다. 따라서 치근단 염증을 동반한 미성숙 영구치에서 치근단의 최소한의 침습으로 임상 및 방사선적 치유 양상을 관찰할 수 있었기에 보고하고자 한다. 본 증례는 조선대학교 치과대학병원 소아치과에 내원한 만 10세 남아(하악 우측 소구치), 만 8세 여아(상악 좌측 소구치)에서 임상 및 방사선 검사결과 치수괴사와 치근단 농양으로 진단된 영구치에서 치근단부위의 기구조작을 제한하고 MTA(Mineral Trioxide Aggregate)를 치수강내에 적용하였다. 정기적으로 관찰한 결과 치근단 농양의 치유와 치근 발육 및 성장의 양상이 관찰되었다. 치수괴사와 치근단 농양을 가진 영구치에서 치근단부위의 치수 및 치유두를 보호함으로써 관찰기간동안 양호한 예후를 보였으며, 이는 어린환자의 미성숙영구치에서 보존적 치수치료의 시도에 대한 보다 많은 임상적 검증 및 장기간의 고찰이 필요할 것이다.

Keywords

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