Micro-CT evaluation of apical delta morphologies in human teeth

Xianhua Gao, Franklin Chi Meng Tay, James L. Gutmann, Wei Fan, Ting Xu, Bing Fan

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Article number36501
JournalScientific Reports
Volume6
DOIs
StatePublished - Nov 7 2016

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Tooth
Dental Pulp Cavity
Debridement
Root Canal Therapy
Tomography

ASJC Scopus subject areas

  • General

Cite this

Micro-CT evaluation of apical delta morphologies in human teeth. / Gao, Xianhua; Tay, Franklin Chi Meng; Gutmann, James L.; Fan, Wei; Xu, Ting; Fan, Bing.

In: Scientific Reports, Vol. 6, 36501, 07.11.2016.

Research output: Contribution to journalArticle

Gao, Xianhua ; Tay, Franklin Chi Meng ; Gutmann, James L. ; Fan, Wei ; Xu, Ting ; Fan, Bing. / Micro-CT evaluation of apical delta morphologies in human teeth. In: Scientific Reports. 2016 ; Vol. 6.
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