ADHP Cariology Practice Test 2026 - Free Cariology Practice Questions and Exam Study Guide

Root caries refers to decay on the root portion of the tooth, where cementum is exposed and dentin lies beneath. This area is distinct from the crown, which is covered by enamel, so coronal caries involves the enamel-dentin of the crown. Secondary or recurrent caries occur around or beneath an existing restoration. Therefore, root caries is the decay affecting the root surface of the tooth.