DANB RHS Calculus Below Gumline Q's

A bitewing radiograph shows a thin radiopaque line along the mesial root of a mandibular molar, below the CEJ. The patient reports mild gingival bleeding. This is most likely:

A. Subgingival calculus

Subgingival calculus is most commonly found on:

B. Lingual surfaces of mandibular anterior teeth

On a periapical radiograph, subgingival calculus typically appears as:

B. Radiopaque irregular line or nodule along the root surface

A patient has radiographically visible subgingival calculus along mandibular anterior teeth. Which clinical sign is most likely present?

B. Gingival inflammation or bleeding

The most appropriate treatment for subgingival calculus is:

B. Scaling and root planing

A radiopaque nodule is visible below the gumline near a premolar root apex. Which features suggest it is subgingival calculus rather than cemental hyperplasia?

A. Irregular, nodular shape along the root surface

Which tooth surfaces are most likely to show radiographically detectable subgingival calculus?

A. Lingual of mandibular anterior teeth, buccal of maxillary molars

A periapical radiograph shows horizontal loss of alveolar bone along the mesial of a mandibular first molar. This pattern indicates:

B. Horizontal bone loss

A radiograph shows a wedge-shaped radiolucency along the distal root of a maxillary molar. This is most consistent with:

B. Vertical bone loss / angular defect

Radiograph shows radiolucent area between roots of mandibular molar. This is:

B. Furcation involvement

Which is an early radiographic sign of periodontitis?

A. Alveolar bone loss <2 mm from CEJ

Which can mask subgingival calculus on a radiograph?

A. Superimposition of cervical enamel

All of the following are common subgingival calculus sites EXCEPT:

C. Occlusal surfaces of premolars

Besides bleeding, subgingival calculus may cause:

B. Gingival recession and pocket formation

After scaling and root planing, what is the next step?

B. Periodontal maintenance and re-evaluation