What is the typical probing depth range for a healthy sulcus?

What is the typical probing depth range for a healthy sulcus?

• A. 0-1 mm
• B. 1-2 mm
• C. 2-4 mm
• D. 1-3 mm

Answer: (D)

Probing depth reflects how deep the sulcus is from the gingival margin to its base. In a healthy sulcus, the gingival margin sits near the tooth surface and the sulcus remains shallow, typically measuring between 1 and 3 millimeters. Depths greater than about 3 millimeters suggest a periodontal pocket from attachment loss and potential disease, though individual anatomy, inflammation, and technique can slightly affect exact measurements. So, the usual healthy sulcus depth range is 1–3 mm.

Probing depth reflects how deep the sulcus is from the gingival margin to its base. In a healthy sulcus, the gingival margin sits near the tooth surface and the sulcus remains shallow, typically measuring between 1 and 3 millimeters. Depths greater than about 3 millimeters suggest a periodontal pocket from attachment loss and potential disease, though individual anatomy, inflammation, and technique can slightly affect exact measurements. So, the usual healthy sulcus depth range is 1–3 mm.