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Table 1 Description of clinical diagnostic criteria for periodontal parameters

From: Association between diabetes-related factors and clinical periodontal parameters in type-2 diabetes mellitus

Clinical diagnostic criteria Description
Community Periodontal index Considers the worst condition encountered in six sites evaluated and used the following four codes:
0 = healthy;
1 = absence of pockets, bacterial plaque retention factors, or bleeding following probing;
2 = depth as much as 3 mm and presence of bacterial plaque retention factors;
3 = pockets with probing depth between 4 and 5 mm;
4 = probing depth ≥ 6 mm
Russell’s periodontal index The periodontal tissue of the remaining teeth including third molar were subjected and the stratification was the following.
0: Negative. There is neither overt inflammation in the investing tissues nor loss of function due to destruction of supporting tissues.
1: Mild gingivitis. There is an overt area of inflammation in the free gingival, but this area does not circumscribe the tooth.
2: Gingivitis. Inflammation completely circumscribes the tooth, but there is no apparent break in the epithelial attachment.
4: There is early, notch like resorption of the alveolar crest.
6: There is horizontal bone loss involving the entire alveolar crest, up to half of the length of the tooth root (distance from apex to cemento-enamel junction).
8: There is advanced bone loss, involving more than one-half of the length of the tooth root; or a definite intrabony pocket with definite widening of the periodontal ligament. There may be root resorption, or rarefaction at the apex.
Papillary bleeding index The interdental sites were probed in order from the right maxillary second molar to the left maxillary second molar (#17, 16, 11, 26 & 27) and from the left mandibular second molar to the right mandibular second molar (#37, 36, 31, 46 & 47). the stratification was the following.Score 0-no bleeding;
Score 1-A single discreet bleeding point;
Score 2-Several isolated bleeding points or a single line of blood appears;
Score 3-The interdental triangle fills with blood shortly after probing;
Score 4-Profuse bleeding occurs after probing; blood flows immediately into the marginal sulcus.