Table 1.

Periodontal evaluations.

Löe and Silness Plaque Index (PI) (1964):
Score	Criteria
0	No plaque
1	A film of plaque adhering to the free gingival margin and adjacent area of the tooth which may be seen by using the sample on the tooth surface
2	Moderate accumulation of soft deposits within the gingival pocket, or the tooth and gingival margin which may be seen with the naked eye
3	Abundance of soft matter within the gingival pocket and/or on the tooth and gingival margin
Löe and Silness Gingival Index (Gl) (1963):
Score	Criteria
0	Normal gums
1	Mild inflammation: slight change in color and slight edema; no bleeding on sampling
2	Moderate inflammation: edema; bleeding on sampling
3	Severe inflammation: marked edema; ulceration; tendency to spontaneous bleeding
Calculus Index (Cl): coronal extension of supragingival calculus and the presence of separate patches of subgingival calculus (Greene and Vermillion 1960)
Score	Debris
0	No debris or stain present
1	Soft debris covering not more than l/3rd of the tooth surface or the presence of extrinsic stains without the debris regardless of surface are covered
2	Soft debris covering more than l/3rd but not more than 2/3rd of the exposed tooth surface
3	Soft debris covering more than 2/3rd of the exposed tooth surface
The IC results were averaged for all six mandibular teeth and a mean value was calculated for each subject.
Probing Depth (PD):
Measured with a periodontal probe (NC 15, Hu-Friedy, Chicago, Illinois, USA)
Was recorded as the distance from the gingival margin to the apical part of the groove
Three readings have been for tooth (mesiolingual, distolingual and medial)
Value 0: PD ≤ 3 mm: no pocket
Value 1: PD> 3 mm: presence of pockets
Gingival Recession:
Moving the marginal soft tissue apical to the CEJ (CEJ) with exposure of the anatomical tooth root.
It was measured with a periodontal probe (NC 15, Hu-Friedy).
Scores in millimeters were recorded only when the recession was present, ie when the CEJ was visible.