Authors : Dr. Pratishtha Singh; Dr. Meetu Mathur; Dr. Madhura Nagare

Volume/Issue : Volume 11 - 2026, Issue 7 - July

---

Google Scholar : https://tinyurl.com/mppu5xnt

Scribd : https://tinyurl.com/yuxnuu8m

DOI : https://doi.org/10.38124/ijisrt/26jul027

Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.

---

Abstract : A favourable endodontic outcome depends on complete cleaning,shaping and sealing of the entire root canal system. Variations in the internal anatomy of mandibular molars can create considerable challenges, and undetected accessory canals may allow residual infection to persist and negatively influence treatment outcomes. Occurrence of both middle mesial and middle distal canals resulting in a six-canal configuration is an uncommon anatomical variation.

Keywords : Mandibular Molar; Six Canals; Mid Mesial Canal; Mid Distal Canal; CBCT.

References :

1. Vertucci FJ. Root canal anatomy of the human permanent teeth. J Endod. 2005;31(6):425-32.
2. De Pablo OV, Estevez R, Peix Sánchez M, Heilborn C, Cohenca N. Root anatomy and canal configuration of the permanent mandibular first molar: a systematic review. J Endod. 2010;36(12):1919-31.
3. Sert S, Bayirli GS. Evaluation of the root canal configurations of the mandibular and maxillary permanent teeth by gender in the Turkish population. J Endod. 2004;30(6):391-8.
4. Pomeranz HH, Eidelman DL, Goldberg MG. Treatment considerations of the middle mesial canal of mandibular first and second molars. J Endod. 1981;7(12):565-8.
5. Azim AA, Deutsch AS, Solomon CS. Prevalence of middle mesial canals in mandibular molars after guided troughing under high magnification. J Endod. 2015;41(2):164-8.
6. Nosrat A, Deschenes RJ, Tordik PA, Hicks ML, Fouad AF. Middle mesial canals in mandibular molars: incidence and related factors. J Endod. 2015;41(1):28-32.
7. Reeh ES. Seven canals in a lower first molar. J Endod. 1998;24(7):497-9.
8. Fabra-Campos H. Three canals in the mesial root of mandibular first permanent molars: a clinical study. Int Endod J.1989;22(1):39-43.
9. Martinez-Berna A, Badanelli P. Mandibular first molars with six root canals. J Endod. 1985;11(8):348-52.
10. Karapinar-Kazandag M, Basrani B, Friedman S. The operating microscope enhances detection and negotiation of accessory mesial canals in mandibular molars. J Endod. 2010;36(8):1289-94.
11. Patel S, Durack C, Abella F, Roig M, Shemesh H, Lambrechts P, et al. European Society of Endodontology position statement: the use of CBCT in Endodontics. Int EndodJ.2014;47(6):502-4.
12. Patel S, Brown J, Semper M, Abella F, Mannocci F. European Society of Endodontology position statement on the use of CBCT in Endodontics: 2019 update. Int Endod J. 2019;52(12):1675-8.