Three-dimensional analysis of root canal curvature and direction of maxillary lateral incisors by using cone-beam computed tomography

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

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)1124-1129
Number of pages6
JournalJournal of endodontics
Volume39
Issue number9
DOIs
Publication statusPublished - 2013 Sep

Bibliographical note

Funding Information:
Supported by the Technology Innovation Program funded by the Ministry of Knowledge Economy, Korea (no. 10031998 : Intelligent 3D dental diagnostic imaging system using CBCT, Dr Kim) and by grant no. 01-2013-0002 from the SNUDH Research Fund (Dr Kum).

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

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