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REVIEW ARTICLE
Year : 2020  |  Volume : 10  |  Issue : 1  |  Page : 1-6

Root canal morphology of primary mandibular second molar: A systematic review


1 Department of Pedodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
2 Department of Conservative and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India

Correspondence Address:
Dr. R Mahesh
Department of Pedodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Poonamalle High Road, Chennai - 600 077, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/sej.sej_18_19

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For many years, it has been the constant endeavor of researchers to understand the complexities of root canal anatomy. This systematic review aimed to analyze the root canal morphology of primary mandibular second molar using different diagnostic aids in different ethnic population. An exhaustive search was undertaken to identify published literature related to the root anatomy morphology of the primary mandibular second molar. Using a combination of keywords, search was done up to August 2018 in PubMed, The Cochrane Central Register of Clinical Trials, and Science Direct. The included data consist of type of population, number of teeth per study, number of root canals, and type of root canal configuration. A total of 10 articles were selected for the review. The most common morphology in primary mandibular second molar consists of 3 canals (two mesial and one distal) in 63% of the teeth examined. The mean root length was estimated to be 8.2 mm in the mesial and 8.6 mm in the distal roots. The review concluded that there are variations in canal morphology and number of canals based on the ethnic origin of the study population. The common canal morphology in primary mandibular second molar is 2 separated roots (mesial and distal) with 3 canal systems. Vertucci's Type IV (22) and Type I (11) canal configurations were the most prevalent in the mesial and distal roots, respectively.


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