巴西人群中使用显微计算机断层扫描技术观察下颌近中根管形态
Mandibular mesial root canal morphology using micro-computed tomography in a Brazilian population.
作者信息
Marceliano-Alves Marília F, Lima Carolina Oliveira, Bastos Ligia Gonçalves do Prado Martins Nayre, Bruno Adilia Maria Vieira, Vidaurre Fernanda, Coutinho Thais Machado, Fidel Sandra Rivera, Lopes Ricardo Tadeu
机构信息
Department of Endodontics, Rio de Janeiro Federal University, Rio de Janeiro, Brazil.
Endodontics, Estacio de Sá University, Rio de Janeiro, Brazil.
出版信息
Aust Endod J. 2019 Apr;45(1):51-56. doi: 10.1111/aej.12265. Epub 2018 Apr 3.
To assess the root canal system morphology of mandibular molars by means of micro-computed tomography, one hundred and four mandibular first molars were investigated and the following were evaluated: Vertucci's classification, the presence of lateral canals and the number of apical foramina. Mesial root canal surface area and volume were obtained by the CTAn and CTvol software. The type of root canal isthmi was classified applying the Hsu & Kim and Fan criteria. The most frequent root canal configuration was Vertucci type IV (46.2%). Lateral canals were observed in all root canal thirds and the average number of apical foramina was 3.15 ± 1.77. Regarding the presence of isthmus, Types I and II were the most prevalent, according to Hsu & Kim and Fan et al. criteria, respectively. Mesial root canals of mandibular molars showed high morphology variability.
为通过显微计算机断层扫描评估下颌磨牙的根管系统形态，对104颗下颌第一磨牙进行了研究，并对以下方面进行了评估：韦尔图奇分类法、侧支根管的存在情况以及根尖孔的数量。通过CTAn和CTvol软件获得近中根管的表面积和体积。应用许和金以及范的标准对根管峡部的类型进行分类。最常见的根管形态为韦尔图奇IV型（46.2%）。在所有根管的三个部分均观察到侧支根管，根尖孔的平均数量为3.15±1.77。根据许和金以及范等人的标准，峡部I型和II型最为常见。下颌磨牙的近中根管表现出高度的形态变异性。
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