Micro-Computed Tomography Assessment of Apical Accessory Canal Morphologies

Ting Xu; Franklin R. Tay; James L. Gutmann; Bing Fan; Wei Fan; Zhuo Huang; Qing Sun

doi:10.1016/j.joen.2016.02.006

Micro-Computed Tomography Assessment of Apical Accessory Canal Morphologies

Ting Xu, Franklin R. Tay, James L. Gutmann, Bing Fan, Wei Fan, Zhuo Huang, Qing Sun

Endodontics

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

Introduction The morphologic features of accessory canals (ACs) were investigated by using micro-computed tomography technique with a centerline fitting algorithm. Methods Ninety-three 3-mm-long apical root segments with unobstructed ACs were scanned by micro-computed tomography at 2.5-μm scanning resolution. After automatic segmentation, a centerline of the reconstructed lateral canal was developed, and the diameter, length, shape, and undulation of ACs were analyzed along the centerline. Results Of 178 unobstructed ACs identified, the median diameter was 67.0 μm, the average length was 786.6 μm, the predominant shape was oval, and the undulation was tortuous rather than straight. Conclusions The diameter, length, shape, and undulation may vary among ACs in particular from the pulpal space to the external root surface, which may complicate the debridement of the ACs.

Original language	English (US)
Pages (from-to)	798-802
Number of pages	5
Journal	Journal of endodontics
Volume	42
Issue number	5
DOIs	https://doi.org/10.1016/j.joen.2016.02.006
State	Published - May 1 2016

Keywords

Accessory canals
micro-CT
morphology
root apices

ASJC Scopus subject areas

General Dentistry

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10.1016/j.joen.2016.02.006

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@article{b03272e03be744c1b9debdbe180b4af9,

title = "Micro-Computed Tomography Assessment of Apical Accessory Canal Morphologies",

abstract = "Introduction The morphologic features of accessory canals (ACs) were investigated by using micro-computed tomography technique with a centerline fitting algorithm. Methods Ninety-three 3-mm-long apical root segments with unobstructed ACs were scanned by micro-computed tomography at 2.5-μm scanning resolution. After automatic segmentation, a centerline of the reconstructed lateral canal was developed, and the diameter, length, shape, and undulation of ACs were analyzed along the centerline. Results Of 178 unobstructed ACs identified, the median diameter was 67.0 μm, the average length was 786.6 μm, the predominant shape was oval, and the undulation was tortuous rather than straight. Conclusions The diameter, length, shape, and undulation may vary among ACs in particular from the pulpal space to the external root surface, which may complicate the debridement of the ACs.",

keywords = "Accessory canals, micro-CT, morphology, root apices",

author = "Ting Xu and Tay, {Franklin R.} and Gutmann, {James L.} and Bing Fan and Wei Fan and Zhuo Huang and Qing Sun",

note = "Publisher Copyright: {\textcopyright} 2016 American Association of Endodontists.",

year = "2016",

month = may,

day = "1",

doi = "10.1016/j.joen.2016.02.006",

language = "English (US)",

volume = "42",

pages = "798--802",

journal = "Journal of endodontics",

issn = "0099-2399",

publisher = "Elsevier Inc.",

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TY - JOUR

T1 - Micro-Computed Tomography Assessment of Apical Accessory Canal Morphologies

AU - Xu, Ting

AU - Tay, Franklin R.

AU - Gutmann, James L.

AU - Fan, Bing

AU - Fan, Wei

AU - Huang, Zhuo

AU - Sun, Qing

PY - 2016/5/1

Y1 - 2016/5/1

N2 - Introduction The morphologic features of accessory canals (ACs) were investigated by using micro-computed tomography technique with a centerline fitting algorithm. Methods Ninety-three 3-mm-long apical root segments with unobstructed ACs were scanned by micro-computed tomography at 2.5-μm scanning resolution. After automatic segmentation, a centerline of the reconstructed lateral canal was developed, and the diameter, length, shape, and undulation of ACs were analyzed along the centerline. Results Of 178 unobstructed ACs identified, the median diameter was 67.0 μm, the average length was 786.6 μm, the predominant shape was oval, and the undulation was tortuous rather than straight. Conclusions The diameter, length, shape, and undulation may vary among ACs in particular from the pulpal space to the external root surface, which may complicate the debridement of the ACs.

AB - Introduction The morphologic features of accessory canals (ACs) were investigated by using micro-computed tomography technique with a centerline fitting algorithm. Methods Ninety-three 3-mm-long apical root segments with unobstructed ACs were scanned by micro-computed tomography at 2.5-μm scanning resolution. After automatic segmentation, a centerline of the reconstructed lateral canal was developed, and the diameter, length, shape, and undulation of ACs were analyzed along the centerline. Results Of 178 unobstructed ACs identified, the median diameter was 67.0 μm, the average length was 786.6 μm, the predominant shape was oval, and the undulation was tortuous rather than straight. Conclusions The diameter, length, shape, and undulation may vary among ACs in particular from the pulpal space to the external root surface, which may complicate the debridement of the ACs.

KW - Accessory canals

KW - micro-CT

KW - morphology

KW - root apices

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JO - Journal of endodontics

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IS - 5

ER -

Micro-Computed Tomography Assessment of Apical Accessory Canal Morphologies

Abstract

Keywords

ASJC Scopus subject areas

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