# A Mandibular Premolar With Varied Configuration: A Case Report

**Authors:** Basanthi Choudhary, Naresh Gaddala, Shekhar Kamishetty, Syed Waseem Uddin, Darsha Nirupama

PMC · DOI: 10.7759/cureus.94646 · 2025-10-15

## TL;DR

This paper reports a successful endodontic treatment of a mandibular premolar with unusual root canal anatomy.

## Contribution

A case report of nonsurgical endodontic treatment in a mandibular premolar with a complex, varied root canal configuration.

## Key findings

- Mandibular premolars can have complex root canal configurations.
- Successful nonsurgical treatment is possible despite unusual anatomy.

## Abstract

The root canal system anatomy significantly influences the outcome of endodontic treatment. Mandibular premolar teeth are known for their considerable variations in root canal morphology. Typically, the mandibular first premolar has a straight forward anatomy with one root and one canal. However, the presence of a varied configuration of mandibular premolars is documented in the literature as it is considered an "enigma to the endodontist." This article presents a case of a successful nonsurgical endodontic treatment of a mandibular premolar with a varied configuration.

## Full-text entities

- **Diseases:** pulpitis (MESH:D011671), tenderness (MESH:D063806), caries (MESH:D003731), reinfection (MESH:D000084063), apical periodontitis (MESH:D010485), pain (MESH:D010146), root fracture (MESH:D011843)
- **Chemicals:** Xylocaine (MESH:D008012), Calcium hydroxide (MESH:D002126), sodium hypochlorite (MESH:D012973), chlorhexidine (MESH:D002710), saline (MESH:D012965), EDTA (MESH:D004492), epinephrine (MESH:D004837)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Figures

2 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12617461/full.md

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Source: https://tomesphere.com/paper/PMC12617461