Table 3: Correlation between plaque index scores and SAT results.

T0
	Frequency (n°)	Mean (mEq/l)
PI 0	17	2960
PI 1	1	3022
PI 2	5	2920
TOTAL	23	2954
T1
	Frequency (n°)	Mean (mEq/l)
PI 0	18	2897
PI 1	4	2952
PI 2	1	2815
TOTAL	23	2903
T2
	Frequency (n°)	Mean (mEq/l)
PI 0	21	3301
PI 1	0	ND
PI 2	2	3255
TOTAL	23	3297