In PSR, how is mobility considered and what does it affect?

• A. Mobility is a sign of periodontal compromise; if present, it may warrant a star and a full FMPE for thorough assessment.
• B. Mobility is ignored in PSR.
• C. Mobility only affects code 0.
• D. Mobility always results in Code 4.

Answer: (A)

Mobility shows that the tooth’s supporting tissues are weakened, indicating periodontal compromise beyond what a quick screen alone can reveal. In PSR, detecting mobility flags the need for a more thorough assessment by marking the sextant with a star and proceeding to a full mouth periodontal exam (FMPE). This full exam confirms the extent of attachment loss, pocket depths, furcation involvement, and other findings to guide treatment planning. Mobility isn’t ignored, and it doesn’t automatically push the code to the highest level by itself; it signals that a comprehensive evaluation is warranted.