Periodontics · single question
What is the definition of Biologic Width?
Show answer and explanation
Correct answer: A. Junctional epithelium (JE) + connective tissue attachment (CT)
✓ A) JE + CT (connective tissue attachment) is correct.
Biologic width = junctional epithelium (~0.97mm) + supracrestal connective tissue attachment (~1.07mm) = ~2mm total. This is the physiologic space the periodontium requires between the base of the sulcus and the alveolar bone crest. Restorations that violate biologic width (placed too subgingivally) cause chronic inflammation, bone loss, and periodontal breakdown.
Biologic width = junctional epithelium (~0.97mm) + supracrestal connective tissue attachment (~1.07mm) = ~2mm total. This is the physiologic space the periodontium requires between the base of the sulcus and the alveolar bone crest. Restorations that violate biologic width (placed too subgingivally) cause chronic inflammation, bone loss, and periodontal breakdown.