Periodontics · single question
Which of the following is NOT an indicator/sign of periodontitis?
Show answer and explanation
Correct answer: D. Presence of calculus
- A. CAL IS the primary indicator of periodontitis — loss of attachment at the CEJ distinguishes periodontitis from simple gingivitis.
- B. Gingival inflammation (BOP, erythema, edema) IS a sign of periodontitis — though it can also be gingivitis without attachment loss.
- C. Pocket depth IS an indicator of periodontitis (pathological pockets >3 mm with attachment loss).
- D. Calculus is NOT an indicator of periodontitis per se — it is a RISK FACTOR and a local irritant. Calculus can be present without periodontitis. Periodontitis is diagnosed by CAL, radiographic bone loss, and clinical signs — not by the presence of calculus alone.