| ORIGINAL RESEARCH |
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| Year : 2016 | Volume
: 8
| Issue : 2 | Page : 167-171 |
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Evaluation of Root Canal Morphology of Mandibular Incisor using Cone Beam Computed Tomography
Neda Haji-Hassani1, Maryam Tofangchiha2, Mahin Bakhshi3, Farnaz Seyed Mostafaei4
1 Assistant Professor, Department of Endodontics, Dental Faculty, Qazvin University of Medical Sciences, Qazvin, Iran
2 Associate Professor, Department of Oral & Maxillofacial Radiology, Dental Faculty, Qazvin University of Medical Sciences, Qazvin, Iran
3 Associate Professor, Department of Oral Medicine, Dental Faculty, Shahid Beheshti University of Medical Sciences, Tehran, Iran
4 Post-graduate Student, Department of Endodontics, Dental Faculty, Qazvin University of Medical Sciences, Qazvin, Iran
Correspondence Address:
Farnaz Seyed Mostafaei
Post-graduate Student, Department of Endodontics, Dental Faculty, Qazvin University of Medical Sciences, Qazvin, Iran
 Source of Support: None, Conflict of Interest: None  | Check |
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Background: Successes in dental root canal treatment require a complete knowledge of dental anatomy and root canal morphology. Root has a complicated morphology, and not only it differs in various teeth types but also it differs in the same type of teeth. Anatomical variations especially caused by the presence of lingual canal, which is often missed, may lead to failure in treatment. Considering the importance of canal anatomy and morphology in forming the root canal system and lack of information about the implementation of researches in Iran, we decided to employ the cone beam computed tomography (CBCT) imaging method for the evaluation of canal morphology and anatomy of mandibular incisors in defined groups of Iranian dental patients. Our goal was to improve the treatment rate by gathering more details about the diverse canal types.
Materials and Methods: 81 CBCT images were used to assess the anatomy and morphology of mandibular incisors. Extracted features from the images were used to identify the root type according to Vertucci's and Weine's classifications. A number of roots and root canals, root canal morphology, tooth position, and demographic data were recorded. Further processing and analysis of the results were achieved by Chi-square test, Fisher's exact test, and Kappa coefficient of agreement.
Results: All of the mandibular central and lateral incisors had one root. Based on Vertucci's classifications in mandibular central 63.1% were Type I, 13.1% Type II, 21.2% Type III, and 2.5% Type V and in mandibular lateral 56.9% of canals were Type I, 12.5% Type II, 28.1% Type III, and 2.5% Type V. Based on Weine's classifications in single-rooted central teeth with two canals, a significant difference was seen between male and female patients regarding canal variant (χ2 = 5.98, P = 0.050). No significant difference was seen between male and female patients regarding other parameters evaluated in this study (P > 0.050).
Conclusion: CBCT scans are effective tools for identification of root canal morphology. |
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