Table II.

Scoring of the Clinical Parameters

Scale	GI	BI	PI	Calculus Index
0	Normal gingival	No bleeding within 30 s of probing	Absence of dental plaque	Absence of calculus
1	Mild inflammation, slight color change, and edema	Bleeding within a few seconds of probing	Supragingival calculus extends only slightly less than 1/3rd of the gingival half of facial or lingual surface of the tooth	Supragingival calculus extending only slightly below the free gingival margin (not more than 1 mm)
2	Moderate inflammation, marked redness, edema, glazing, bleeding on probing	Immediate bleeding on probing	Dental plaque covering more than 1/3rd but less than 2/3rd of the gingival half of the facial or lingual surface of the tooth	Moderate amount of supragingival and subgingival calculus
3	Severe inflammation, marked redness, edema, spontaneous bleeding	Bleeding along gingival sulcus with the slightest touch	Dental plaque covering 2/3rd or more of the gingival half of the facial or gingival surface of the tooth	Abundance of supragingival and subgingival calculus