대한소아치과학회지 (Journal of the Korean Academy of Pediatric Dentistry)

  • 제47권1호
  • /
  • Pages.25-35
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  • 2020
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  • 1226-8496(pISSN)
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  • 2288-3819(eISSN)
대한소아치과학회 (Korean Academy of Pediatric Dentistry)
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CBCT를 이용한 유구치의 치근 및 근관의 형태학적 평가

Assessment of Root and Root Canal Morphology of Human Primary Molars using CBCT

  • 최유민 (전남대학교 치의학전문대학원 소아치과학교실) ;
  • 김선미 (전남대학교 치의학전문대학원 소아치과학교실) ;
  • 최남기 (전남대학교 치의학전문대학원 소아치과학교실)
  • Choi, Yoomin (Department of Pediatric Dentistry, School of Dentistry, Chonnam National University) ;
  • Kim, Seonmi (Department of Pediatric Dentistry, School of Dentistry, Chonnam National University) ;
  • Choi, Namki (Department of Pediatric Dentistry, School of Dentistry, Chonnam National University)
  • 투고 : 2019.07.29
  • 심사 : 2019.09.05
  • 발행 : 2020.02.29
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초록

이 연구의 목적은 CBCT를 사용하여 유구치 치근 및 근관의 형태학적 특징을 평가하는 것이다. 과잉치 발거를 위해 전남대학교 치과병원 소아치과에 내원하여 CBCT를 촬영한 만 4 - 5세 환자 총 68명의 영상으로 연구를 진행하였다. 치근 흡수가 되지 않은 상악 제1유구치, 상악 제2유구치, 하악 제1유구치, 하악 제2유구치로 구분하여 분석하였다. 치근 및 근관의 수, 치근 및 근관의 길이와 각도 등의 다양한 변수들이 분석되었다. 상악 유구치는 모두 3개의 치근을 가졌고 원심 협측 치근과 구개 치근은 단일 근관을 가졌다. 한 치근에 2개의 근관이 있는 경우는 오직 상악 제2유구치의 근심 협측 치근에서 발견되었다. 하악 유구치는 대부분 근심과 원심 2개의 치근을 가졌다. 하악의 근심 치근은 대부분 2개의 근관을 가졌다. 치근의 길이와 관련하여, 상악의 구개 치근의 길이가 가장 긴 반면, 원심 협측 치근의 길이는 가장 짧은 것으로 밝혀졌다. 하악 유구치는 근심의 치근이 더 길었다. 상악 유구치에서는 구개 치근의 각도가 가장 컸으나 하악은 근심의 각도가 더 작았다. 상악 유구치의 치근 및 근관이 곡선형이 많은 반면 하악 유구치는 직선형을 더 많이 볼 수 있었다.

The purpose of this study is to evaluate the morphological characteristics of the roots and roots canals of primary molar teeth using Cone-Beam Computed Tomography (CBCT). A total of 68 CBCT images of children aged 4 - 5 years was used for this study. A total of 160 molar teeth were analyzed. Various parameters such as the number of roots and canals, length of root and root canal, and the angulation and shape of the roots were analyzed. All maxillary primary molars had 3 roots. The presence of 2 root canals in 1 root was only observed in the mesiobuccal root of maxillary primary second molars. Most mandibular primary molars had 2 roots, and most mesial roots had 2 root canals. Concerning the length of the roots, the palatal root of the maxillary primary molar was found to be longest whereas the distobuccal root was shortest. In mandibular primary molars, the mesial root was longer than the distal root. In maxillary primary molars, the palatal root had the greatest angulation whereas the distal root has the greatest in mandibular molars. The root and root canals of maxillary primary molars were more curved in shape whereas mandibular primary molars were straight.

키워드

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