The correct answer is c.
The PSR system uses especially designed probe that has a 0.5 mm ball tip and is colored coded from 3.5 to 5.5 mm. The patient’s mouth is divided into six sextants. At least six areas are examined around each tooth. The deepest finding in each sextant is recorded.
Code 2 is incorrect only because the colored band is still fully visible.
Code 4 is not correct since the colored band indicates a depth greater than 5.5 mm.
Code * : An * after a number indicates that there is one of the following conditions: furcation involvement, tooth mobility, mucogingival problem, or gingival recession extending to the colored band (3.5 mm or greater).
Clinical Peridontology. Eight Edition. Pages 360-361
1 comments:
Wonderful explanation
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