Micro-CT evaluation of apical delta morphologies in human teeth.

Micro-CT evaluation of apical delta morphologies in human teeth.
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人类牙齿根尖三角洲形态的显微 CT 评估

DOI:
10.1038/srep36501
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发表时间:
2016-11-07
期刊:
影响因子:
4.6
通讯作者:
Fan B
Fan B
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Gao X;Tay FR;Gutmann JL;Fan W;Xu T;Fan B

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根尖三角区是根管内的一个复杂系统,不彻底清除可能影响根管治疗的长期预后。本研究的目的是调查的形态学特征的根尖三角洲在人类牙齿与微型计算机断层扫描(micro-CT)使用中心线拟合算法。在1400颗牙齿中检测到136个根尖三角洲。磨牙的根尖三角洲(15.8%)多于前牙(6.3%)。在上颌磨牙中,近中颊根的根尖三角形的患病率显著高于腭根或远中颊根。心尖三角洲的垂直距离中位数为1.87 mm,13%大于3 mm。三角洲顶支的中位直径和长度分别为132.3和934.5 μm。心尖三角动脉分支不直,横截面形状为非圆形。根尖三角洲的这些形态特征可能使感染根管系统的清创术复杂化。
The apical delta is an intricate system within the root canal and incompletely debridement may affect the long-term prognosis of root canal therapy. The aim of the present study is to investigate the morphologic features of apical deltas in human teeth with micro-computed tomography (micro-CT) using a centreline-fitting algorithm. One hundred and thirty-six apical deltas were detected in 1400 teeth. Molars had more apical deltas (15.8%) than anterior teeth (6.3%). In maxillary molars, the mesiobuccal root had a significantly higher prevalence of apical delta than the palatal root or the distobuccal root. The median vertical distance of the apical delta was 1.87 mm with 13% more than 3 mm. The median diameter and length of the apical delta branches were 132.3 and 934.5 μm. Apical delta branches were not straight with cross-sectional shapes being non-circular. These morphological features of apical delta may complicate debridement of the infected root canal system.
DOI: 10.1016/0030-4220(84)90085-9
发表时间: 1984-01-01
期刊: ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY
影响因子: --
作者:
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