Prevalence of middle mesial canals and Isthmi in mandibular molars in a subpopulation of Andhra Pradesh: An in vivo investigation using CBCT.

Authors

  • Girija S Sajjan Vishnu Dental College
  • Ch Rajashekar Meghana Institute of Dental Sciences
  • K Madhu Varma Vishnu Dental College
  • R Kalyan Satish Vishnu Dental College
  • T  Rishitha St Joseph Dental College and Hospital
  • G Srikanth Vishnu Dental College

DOI:

https://doi.org/10.37983/IJDM.2021.3102

Keywords:

CBCT Dental, Operating Microscope, Isthmi, Mandibular Molars, Middle Mesial Canal

Abstract

Background: Pulp and root canal space is enigmatic and highly complex. Encountering rare has become a norm with the advancements in the technology of materials and types of equipment. The success of the root canal treatment depends on the effective removal of bacteria from the whole pulp space. A high percentage of the missed canal is reported for the failure of Endodontic therapy. Mandibular molars have complex root canal anatomy. Two roots with two canals in mesial root and one to two canals in distal root is a common occurrence.    Nevertheless, the incidence of variation is relatively high, including separate distolingual, mesiobuccal, C-Shaped canals, isthmus, and additional canal in the mesial root. A wide range of the middle mesial canal occurrence, i.e., 3.1 to 46.1%, is reported in the world and 28.3% in North India.

Aim: To identify the prevalence of the true middle mesial canal (MM) and configuration of Isthmi in the mesial root of the mandibular molar in the AP   subpopulation of South India.  

Materials and methods: CBCT of 89 patients were randomly selected from the institutional database. Data entry was performed in Excel, and data analysis was done with the Statistical Package for Social Sciences (SPSS).

Results: Four images (4.5%) revealed Middle Mesial canals with no statically significant occurrence. The frequency of isthmi in the mesial roots was 52.7%.  This showed a considerable presence.

Conclusion: MM canals are 4.5% in a subpopulation of Andhra Pradesh. Isthmuses are very common in the mesial roots of permanent mandibular molars. Isthmus about 58% was seen with Type II configuration that is the presence of two canals without a definite communication.

Author Biographies

Girija S Sajjan, Vishnu Dental College

Professor and Head, Department of Conservative Dentistry and Endodontics, Vishnu dental college, Bhimavaram, Andhra Pradesh, India - 534202.

Ch Rajashekar, Meghana Institute of Dental Sciences

Senior Lecturer, Department of Conservative Dentistry and Endodontics, Meghana Institute of Dental Sciences, Nizamabad, Telangana, India.

K Madhu Varma, Vishnu Dental College

Professor, Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India - 534202.

R Kalyan Satish, Vishnu Dental College

Professor, Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India - 534202.

T  Rishitha, St Joseph Dental College and Hospital

Senior Lecturer, Department of Conservative Dentistry and Endodontics, St Joseph Dental College and Hospital, Eluru, Andhra Pradesh, India.

G Srikanth, Vishnu Dental College

Postgraduate Student, Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India - 534202

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2021-02-22

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