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Three-dimensional Analysis of Root Canal Curvature and Direction of Maxillary Lateral Incisors by Using Cone-beam Computed Tomography

Authors
 Pan-Soo Park  ;  Kee-Deog Kim  ;  Hiran Perinpanayagam  ;  Jong-Ki Lee  ;  Seok Woo Chang  ;  Shin Hye Chung  ;  Blythe Kaufman  ;  Qiang Zhu  ;  Kamran E. Safavi  ;  Kee-Yeon Kum 
Citation
 JOURNAL OF ENDODONTICS, Vol.39(9) : 1124-1129, 2013 
Journal Title
 JOURNAL OF ENDODONTICS 
ISSN
 0099-2399 
Issue Date
2013
MeSH
Adult ; Cone-Beam Computed Tomography/methods* ; Dental Pulp Cavity/diagnostic imaging* ; Female ; Humans ; Image Processing, Computer-Assisted/methods ; Imaging, Three-Dimensional/methods* ; Incisor/diagnostic imaging* ; Male ; Maxilla/diagnostic imaging ; Middle Aged ; Models, Theoretical ; Retrospective Studies ; Software ; Tooth Apex/diagnostic imaging ; Tooth Cervix/diagnostic imaging ; Tooth Root/diagnostic imaging ; User-Computer Interface ; Young Adult
Keywords
Cone-beam computed tomography ; mathematical modeling ; maxillary lateral incisor ; root canal curvature ; root canal direction
Abstract
INTRODUCTION: Root canal curvature can affect the technical quality of endodontic treatment. Prior studies measured canal curvature mainly by 2-dimensional radiography. The aim of this study was to measure the 3-dimensional (3D) root canal curvature and canal direction of maxillary lateral incisors by using cone-beam computed tomography (CBCT) and mathematical modeling. METHODS: The CBCT images of 186 maxillary lateral incisors from 110 patients were used to measure 3D root canal curvature by using V-works and kappa software. In addition, the direction of each root canal was determined by measuring the orientation of the apical one-third with respect to the coronal two-thirds. RESULTS: All 186 maxillary lateral incisors were found to have canal curvature that was mainly oriented in the disto-palatal direction. The point of maximum curvature was located 0.5 mm from the root apex. CONCLUSIONS: Maxillary lateral incisors have 3D canal curvature that is maximal near the root apex, oriented in the disto-palatal direction. These CBCT analyses provide valuable information for root canal instrumentation of maxillary lateral incisors.
Full Text
http://www.sciencedirect.com/science/article/pii/S009923991300513X
DOI
10.1016/j.joen.2013.06.001
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Advanced General Dentistry (통합치의학과) > 1. Journal Papers
Yonsei Authors
Kim, Kee Deog(김기덕) ORCID logo https://orcid.org/0000-0003-3055-5130
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/88170
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