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ARTICLE
Year : 1992  |  Volume : 4  |  Issue : 2  |  Page : 23-26

Variation in root canal and root form of human permanent mandibular second molars


1 Reader, Department, Conservative Dentistry Department, Bapuji Dental College & Hospital, Davangere-577 004, Karnataka, India
2 Prodessor & Head of the Department, Conservative Dentistry Department, Bapuji Dental College & Hospital, Davangere-577 004, Karnataka, India

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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-7212.347235

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Two hundred extracted, human, permanent, mandibular second molars were studies by utilizing the ratio-opaque dye ‘Conray-280’, as a contrast media for the radiographic analysis. Maximum variations were seen in the mesial root canals. The lateral canals were found in the mesial of the distal root and they were llocated at the middle third of the roo in about 5.5.% of the cases. 78.5% of the teeth showed completely seperated mesial and distal roots and about 21.5% showed fused or cone shaped roots. 61 teeth (30.5%) showed single canal (Type-I) Of the remaining, 136 teeth exhibited two mesial canals - Type-II in 84% and TypeIII in 16%. Two teeth has a single middle canal and one had a ‘C’ shaped canal.


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