Table 1: Debris index (0 no debris of stain , 1 soft debris covering one third of tooth surface , 2 Soft debris covering more than one third, but not more than two thirds, of the exposed tooth surface,3 soft debris more than two thirds of the exposed tooth surface ), Calculus index (0 no calculus , 1mild calculus, 2 moderate calculus,3 heavy calculus ), Plaque index (0 absence of plaque, 1thin film of plaque, 2 moderate plaque accumulation ,3 large amount of plaque ), Gingival Index (0 normal, 1mild inflammation, 2 moderate inflammation,3 severe inflammation ).

Index Median Score Scoring Criteria
Debris Score 1 Soft debris covering not more than 1/3rd
of the exposed tooth surface or presence of extrinsic stains without other debris regardless of surface area covered
Calculus Score 1 Supragingival calculus covering not more than 1/3rd of the exposed tooth surface
Plaque Score 1 A film of plaque adhering to the free gingival margin and the adjacent area of the tooth. The plaque may be recognized only by running a probe across the tooth surface
Gingival Score 1 Mild inflammation, slight change in color & edema, but no bleeding on probing