Independent and confluent middle mesial root canals in mandibular first molars: a report of four cases.

Mohanavelu Deepalakshmi,Revathi Miglani,Chellasamy Savarimala Karumaran,Rajamani Indira

doi:10.1155/2012/103125

Mohanavelu Deepalakshmi, Revathi Miglani + Show 2 more

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https://doi.org/10.1155/2012/103125

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Abstract

Mandibular molars demonstrate considerable variations with respect to number of roots and root canals. The possibility of additional root canals should be considered even in teeth with a low frequency of abnormal root canal anatomy. This paper discusses the endodontic management of the rare anatomical complexity middle mesial canals in mandibular first molar and also serves to remind the clinicians that such anatomical variations should be taken into account during the endodontic treatment of the mandibular molars.

Highlights

Knowledge of both normal and abnormal anatomy of the root canal system dictates the parameters for execution of root canal therapy and can directly affect the outcome of the endodontic therapy
The working length radiograph confirmed the presence of 5 distinct orifices, and 4 apical terminations confluent middle mesial canal originated as a separate orifice but joined in the apical third of the mesio buccal canal (Figure 3(a))
The present paper reports the endodontic management of independent and confluent middle mesial canals in the mandibular first molars

Summary

Introduction

Knowledge of both normal and abnormal anatomy of the root canal system dictates the parameters for execution of root canal therapy and can directly affect the outcome of the endodontic therapy. The mesial canal is called independent when a distinct coronal orifice and apical foramen were observed or confluent when converging to one of the other two main canals and terminating at a common foramen [4]. It is of prime importance for the clinician to identify the entire topographic location of any additional canal orifices and extremely important that clinicians use all the armamentaria at their disposal to locate and treat the entire root canal system [18]. Cases were managed under magnifying loupes and 2 cases under dental operating microscope

Case Report

Discussion

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Conclusion