Journal of Conservative Dentistry
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ORIGINAL RESEARCH ARTICLE
Year : 2017  |  Volume : 20  |  Issue : 5  |  Page : 332-336

Efficacy of cone beam computed tomography in the detection of MB2 canals in the mesiobuccal roots of maxillary first molars: An in vitro study


Department of Conservative Dentistry and Endodontics, Dr. R Ahmed Dental College and Hospital, Kolkata, West Bengal, India

Correspondence Address:
Dr. Rohan Gupta
4th Floor, New Building, 142/A, AJC Bose Road, Kolkata - 700 014, West Bengal
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/JCD.JCD_125_17

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Background: Numerous researches have been done on the permanent maxillary first molars for the presence of an extra canal, especially the mesiobuccal roots for the presence of MB2 canals. Cone beam computed tomography (CBCT) has been used recently in the detection of these canals. However, literature discussing the efficacy and reliability of CBCT in the detection of these canals is scanty. Aims: This study aims to evaluate the efficacy of CBCT as a preoperative diagnostic aid in locating the second mesiobuccal canal in maxillary first molars. Methods: Selected sixty extracted maxillary first molars were placed in the skull base, and CBCT scans were done for evaluating the presence of MB2 canals in the mesiobuccal root. Sectioning of the roots at 3, 5, and 7 mm from the tip was performed and further examined under the microscope for the presence of the MB2 canals. Evaluations were done by two evaluators independently. Results of evaluations were statistically analyzed. Statistical analysis used were standard normal deviation (Z value), interrater reliability (Chronbach's alpha-), P value and receiver operating curve(ROC). Results and Conclusions: Detection rates of MB2 using both the methods did not show any significant difference (P > 0.05). CBCT was found to be a reliable tool for the detection of MB2 canal in maxillary first molar teeth when compared to gold standard sectioning technique.


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