HOSA Dental Terminology Practice 2026 - Free Dental Terminology Practice Questions and Study Guide

A transillumination test is a diagnostic technique commonly used in dentistry to help identify vertical fractures in a tooth. This test works by shining a bright light through the tooth structure, allowing the dentist to see variations in the light transmission, which can indicate the presence of cracks or fractures. Vertical fractures often do not show up on traditional x-rays, making transillumination a valuable tool for detection.

This method is particularly useful as it provides a non-invasive means to assess the integrity of the tooth structure. The identification of such fractures is crucial, as they can lead to pain, functional issues, and require different treatment approaches than cavities or other dental concerns. Understanding this aspect of dental diagnostics is important for recognizing how technologies can aid in the comprehensive care of patients.