Micro-CT evaluation of apical delta morphologies in human teeth

نویسندگان

  • Xianhua Gao
  • Franklin R. Tay
  • James L. Gutmann
  • Wei Fan
  • Ting Xu
  • Bing Fan
چکیده

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.

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عنوان ژورنال:

دوره 6  شماره 

صفحات  -

تاریخ انتشار 2016