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Journal of Dental and Oral Health


Research Article

A Cone Beam Computed Tomography Study on the Incidence of Additional Canals of the Permanent Maxillary and Mandibular Molars

Ranjdar Mahmood Talabani, Darwn Saeed Abdulateef and Mardin Othman Rashid

Correspondence Address :

Ranjdar Mahmood Talabani
Lecturer at Conservative Department
University of Sulaimani
Iraq/Kurdistan Region
Tel: 009647701463454
Email: /

Received on: June 08, 2017 , Accepted on: June 21, 2017 , Published on: June 30, 2017

Citation: Ranjdar Mahmood Talabani, Darwn Saeed Abdulateef, Mardin Othman Rashid (2017). A Cone Beam Computed Tomography Study on the Incidence of Additional Canals of the Permanent Maxillary and Mandibular Molars

Copyright: 2017 Ranjdar Mahmood Talabani, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

  • Abstract

Objective: This cross section study was carried out to assess the impact of gender and tooth position distribution of the incidence of additional canals of the permanent maxillary and mandibular molars using cone beam computed tomography.
Patient & Method: In the Iraq/Kurdistan Region- Sulaimani City from private B&R private dental, CBCT images of 160 (90) male and (70) female aged 18-70 years were examined. The numbers of root canals were investigated according to gender and side. The data were analyzed using Pearson's Chi-square test.
Results: In total of 160 patients, 1,124 teeth were examined consisting of 285 maxillary first molar, 303 maxillary second molar, 261 mandibular first molar upper and 275 mandibular second molar. The prevalence of the MB2 canal of the maxillary first molar in male for the right side is (32.17%) which was significantly higher in female for both sides (P < 0.05). In male,  the prevalence of three canals was more than four canals of mandibular first molar with no sides effect while female had more frequency of four canals in right side (38.1%) with no statistically significant. Both maxillary and mandibular second molars had three canals more prevalent than two canals and four canals with no gender and side significance.
Conclusion: The incidence of extra canals of maxillary and mandibular molars shows slight difference between gender and sides. 
Keywords: Mandibular and Maxillary molars, Cone beam computed tomography, Gender, Side