Table 1.

Oral hygiene status.

Score	Status
	Plaque Status (distal surface of examined molars)
0	No plaque on probe
1	Thin plaque on probe
2	Thick plaque on probe
	Gingival Status (distal of the molars under examination)
0	No gingival examination
1	Gingival examination but no bleeding on probe
2	Gingival examination with bleeding on probe
	Visible Plague Recording (occlusal surface of examined molars)
0	No visible plaque
1	Visible plaque but difficult to recognize
2	Visible plaque easy to recognize