Code 3 in PSR indicates pocket depths which range?

Code 3 in PSR indicates pocket depths which range?

• A. Pockets ≥6 mm
• B. Pockets 3-3.5 mm
• C. Pockets 4-5 mm in the sextant (with or without BOP)
• D. Healthy tissue

Answer: (C)

In PSR, each sextant is assigned a code based on the deepest probing depth found there, guiding whether a full periodontal exam is needed. A depth of 4–5 millimeters in a sextant corresponds to a Code 3 finding, and this can occur with or without bleeding on probing. That’s why the correct range is pockets 4–5 mm in the sextant. Pockets of 6 mm or more would indicate a Code 4, while shallower pockets (like 3–3.5 mm) align with a lower code, not Code 3. Healthy tissue would be the lowest codes.

In PSR, each sextant is assigned a code based on the deepest probing depth found there, guiding whether a full periodontal exam is needed. A depth of 4–5 millimeters in a sextant corresponds to a Code 3 finding, and this can occur with or without bleeding on probing. That’s why the correct range is pockets 4–5 mm in the sextant. Pockets of 6 mm or more would indicate a Code 4, while shallower pockets (like 3–3.5 mm) align with a lower code, not Code 3. Healthy tissue would be the lowest codes.