Dental conditions are the diagnoses and pathologies that drive treatment planning. This section of the Rebrief Dental Glossary covers the conditions clinicians identify, document, and manage — from common caries and bruxism to less-frequent presentations like burning mouth syndrome, ankyloglossia, and aphthous stomatitis. We define the wear-and-mechanical lesions (abfraction, abrasion, attrition), the infectious and inflammatory conditions (apical periodontitis, candidiasis, periodontitis), and the structural changes that show up on radiographs (bone resorption, attachment loss, external resorption). Each entry pairs a working clinical definition with diagnostic context: how the condition typically presents, what differentiates it from look-alike conditions, and where to find the related treatment in the procedures section of the glossary. Many entries cross-link to the anatomy entries — so you can read about caries and immediately jump to the enamel and dentin structures it affects, or read about periodontitis and trace it back to the periodontal ligament and alveolar bone. The goal: a quick reference for chairside terminology, charting, and patient education that respects how dentistry actually works. Browse alphabetically below or search across the full Rebrief Dental Glossary for anatomy, procedures, and equipment terms that connect to each condition.