In vitro evaluation of the presence of second canal in distal root of first and second mandibular molars

Bidar, Maryam and Sheikhnezmi, Mahshid and Moradi, Saeed (2006) In vitro evaluation of the presence of second canal in distal root of first and second mandibular molars. Journal of Mashhad Dental School, 30 (Issue). pp. 177-182.

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Abstract

Introduction: The human tooth have a lot of anatomical variation and adequate information of root canal anatomy is an important factor in successfull root canal therapy. The purpose of this study was evaluation incidence of second canal in distal root of inandibular first and second molars. Materials & Methods: In this descriptive invitro study, 100 extracted human extrated first and second mandibular molar used then; distal roots resected from CEJ. After removal the pulp tissue, teeth stored in 30% hydrogen peroxid for 48 hours. Root canal system was studied with dye penetration and serial horizontal sectioning methods. Results: There were 16% and 18% two canals in distal root of mandibular first and second mandibular molars. Different type of canals in distal root of first mandibular molars were observed as follow: 10% type IV and 6% type II. Different type of canals in distal root of second mandibular molars were as follow: 2% type IV, 2% type III, and 14% type II. Conclusion: With attention to the results of this study about incidence of second canal in distal root of mandibular molars careful exploration is necessary for finding of extra canals. Key words: Second canal, distal root, first and second mandibular molar.

Item Type: Article
Subjects: WU Dentistry. Oral surgery
Divisions: Journals > Journal of Mashhad Dental School
Depositing User: jmds jmds
Date Deposited: 24 Sep 2017 16:18
Last Modified: 24 Sep 2017 16:18
URI: http://eprints.mums.ac.ir/id/eprint/3592

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