Which statement best differentiates proximal caries from root caries?

Which statement best differentiates proximal caries from root caries?

• A. By location
• B. By color
• C. By age
• D. By treatment

Answer: (A)

The main idea is where the caries occurs on the tooth. Proximal caries develop on the interproximal surfaces between adjacent teeth, while root caries occur on exposed root surfaces (cementum/dentin) when gingival recession or periodontal disease exposes the root. That location is what distinguishes them, more than color, age, or how they’re treated. Proximal lesions are often detected with bitewing radiographs and clinical probing between teeth; root lesions are seen clinically on the root surface and are common in adults with exposed roots.

The main idea is where the caries occurs on the tooth. Proximal caries develop on the interproximal surfaces between adjacent teeth, while root caries occur on exposed root surfaces (cementum/dentin) when gingival recession or periodontal disease exposes the root. That location is what distinguishes them, more than color, age, or how they’re treated. Proximal lesions are often detected with bitewing radiographs and clinical probing between teeth; root lesions are seen clinically on the root surface and are common in adults with exposed roots.