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Year : 2017  |  Volume : 7  |  Issue : 3  |  Page : 166-169

Comparative evaluation of second mesiobuccal canal detection in maxillary first molars using magnification and illumination

Department of Conservative Dentistry and Endodontics, Manipal College of Dental Sciences, Mangalore, Karnataka, India

Correspondence Address:
Karthik Shetty
Department of Conservative Dentistry and Endodontics, Manipal College of Dental Sciences Manipal University, Light House Hill Road, Mangalore - 575 001, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1658-5984.213483

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Aim: This in vitro study evaluated the effectiveness of detecting the presence of second mesiobuccal (MB2) canal in the maxillary first molars, using magnification and illumination. Materials and Methods: Access cavities of fifty extracted human maxillary first molars were prepared, and the floor of the pulp chamber was then explored to locate the MB2 canal in five stages: Stage I (direct vision), Stage II (under ×2.5 magnifying loupes without light-emitting diode [LED] light), Stage III (under ×2.5 magnifying loupes with LED light), Stage IV (under operating microscope at ×5), and Stage V (under operating microscope at ×12.8). Statistical Analysis: The descriptive statistics were tabulated using the kappa statistic to check the association between the five groups. Results: The operating microscope at ×5 and ×12.8 gave a diagnostic accuracy of 100%, followed by magnifying loupes with LED light which gave a diagnostic accuracy of 90% in detecting the presence of MB2 canal. The use of magnifying loupes without LED light and plain eyesight gave a comparatively lesser diagnostic accuracy, i.e., 76% and 68%, respectively. Conclusion: The operating microscope with a sensitivity and diagnostic accuracy of 100% was most effective in the detection of MB2 canals followed by magnifying loupes with LED light.

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