# Diagnosis of Vertucci Type VII Anatomy in the Mandibular Left Lateral Incisor Using Digital Radiography: An Ex Vivo Case Study

## TL;DR

A rare tooth anatomy was identified using digital radiography to improve endodontic treatment planning.

## Contribution

The study demonstrates the use of RVG's zoom function to identify a rare Vertucci Type VII canal system in a mandibular incisor.

## Key findings

- A Vertucci Type VII root canal system was identified in a mandibular left lateral incisor using RVG.
- Horizontal sectioning confirmed the accuracy of digital radiography in diagnosing complex canal anatomy.
- The zoom function of RVG proved effective in visualizing internal anatomical variations.

## Abstract

Mandibular lateral incisors sometimes feature an additional lingual canal, which, if not identified and missed during endodontic treatment, can lead to postoperative pain. Thus, a proper diagnosis of the internal anatomy of a tooth is necessary before treatment begins. Radiovisiography (RVG), a cost-effective and widely employed dental imaging technique, is used in clinics to visualize the internal root structure of teeth. The zoom function of RVG allows for a detailed examination of complex internal anatomical variations, facilitating a more accurate diagnosis and treatment planning process. This case study identified a rare Vertucci Type VII root canal system in a mandibular left lateral incisor using the zoom-in feature of radiovisiography (Vatech, EZ sensor). Additionally, horizontal sectioning was performed, and these sections were imaged to verify the accuracy of digital radiographs in diagnosing such cases as part of a preclinical demonstration for aspiring endodontists.