Amira Shafqat, Bader Munir, Mustafa Sajid.
Maxillary Second Molar; Variations in Root Canal Morphology in Maxillary Second Molar in patients Undergoing Root Canal Treatment.
Professional Med J Jan ;25(7):981-6.

Introduction: It is important for a dental practitioner to have a clear understanding of the root canal morphology and its variations to perform successful root canal treatment. The inability to identify and adequately treat all canals of root canal system may contribute to the failure of root canal treatment. Objectives: Clinically determine the frequency or numbers of root canals per tooth in the maxillary second molar teeth in the local population. Setting: Department of Operative Dentistry in Punjab Dental Hospital / de`Montmorency College of Dentistry, Lahore. Study Design: Randomized Control Trial. Study Period: 25th May 2013 to 24th November 2013 (6 months). Results: This was a Cross sectional survey of 80 patients with symptomatic irreversible pulpitis in maxillary second molar teeth in patients undergoing root canal treatment. The results showed that five (6.25%) patients had single root canal, seventeen (21.25%) patients had 2 root canals, forty (50%) patients had 3 root canals, seventeen (21.25%) patients had 4 root canals and one (1.25 %) patient had 5 root canals per tooth. In patient with five canals, single root canal was present in distobuccal and palatal root each while three root canals were present in mesiobuccal root as MB-1, MB-2 and MB-3 canal. Conclusion: Local population have a lot of variations in root canal anatomy in second molar. So preclinical knowledge can increase the success rate of root canal treatment.

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