1, 0= healthy gums.
2, 1= gingivitis, bleeding after visiting.
3,2 = dental calculus. Dental calculus can be seen by probing, but the black part of probing is exposed outside the gingival pocket.
4,3 = early periodontal disease, the gingival margin covers part of the black part of the probe, and the depth of the gingival pocket is 4-5 mm. ..
5, 4= in the late stage of periodontal disease, the black part of the probe is completely covered by the gingival margin, and the depth of periodontal pocket is greater than 6 mm
6.X= excluded part (less than two functional teeth).
7,9 = Unable to check.
The above scores are filled in the CPI scoring table, with one point in each box, and the two functional teeth in the posterior segment are scored according to the most serious situation.
Extended data:
The CPI probe recommended by WHO is used in the demand index of community periodontal treatment. The tip of the probe is a ball with a diameter of 0.5 mm, with a black coating area at a distance of 3.5-5.5 mm from the tip, and two bands at a distance of 8.5 mm and 1 1.5 mm..
The role of CPI probe:
1, check the bleeding of gums, and probe the gums lightly with the ball at the tip of the probe to see if there is bleeding imagination. The pointed ball can prevent the probe from being too sharp to stab the gingival tissue and cause bleeding, which is misdiagnosed as gingivitis.
2, detection of subgingival stones, gently explore the subgingival, in case of stones, hands can have a slight tremor.
3. Measure the depth of gingival sulcus or periodontal pocket. The probe scale of 3.5/5.5mm is convenient for measuring the depth of periodontal pocket.
Baidu Encyclopedia-Index of Community Periodontal Treatment Needs