Periodontics · single question
What is the average dimension of the biologic width in adults?
Show answer and explanation
Correct answer: C. 2.0 mm
- A. INCORRECT. 0.5 mm is too small. The sulcus alone is roughly that size.
- B. INCORRECT. 1.0 mm reflects only one component (junctional epithelium or connective tissue), not the total.
- C. CORRECT. Biologic width averages about 2.0 mm: roughly 1 mm of connective tissue attachment plus 1 mm of junctional epithelium.
- D. INCORRECT. 3.0 mm overestimates the attachment dimension.