Table 4.

Periodontal parameters in the control and test groups at each time point

Variable	Control group	Test group	p-value
Gingival index
T0	0.97 ± 0.72	1.07 ± 0.91	0.64
T1	0.80 ± 0.71	0.69 ± 0.79	0.59
T2	1.04 ± 0.79	0.88 ± 0.90	0.50
T3	0.23 ± 0.43	0.63 ± 0.76	0.039*
Plaque index
T0	1.17 ± 0.65	1.07 ± 0.74	0.58
T1	0.77 ± 0.57	0.73 ± 0.67	0.83
T2	1.16 ± 0.62	0.92 ± 0.65	0.19
T3	0.95 ± 0.49	1.05 ± 0.62	0.57
Recession index
T0	0.00 ± 0.00	0.00 ± 0.00	0.99
T1	0.00 ± 0.00	0.00 ± 0.00	0.99
T2	0.00 ± 0.00	0.00 ± 0.00	0.99
T3	0.00 ± 0.00	0.00 ± 0.00	0.99
Calculus index
T0	0.47 ± 0.51	0.77 ± 0.43	0.017*
T1	0.30 ± 0.47	0.27 ± 0.45	0.80
T2	0.44 ± 0.58	0.42 ± 0 .50	0.88
T3	0.23 ± 0.43	0.42 ± 0.51	0.19

Values are presented as mean ± standard deviation.

Two-sided unpaired Student’s t-test for the comparison between groups at each time point.

T0, Baseline; T1, 1 month; T2, 6 months; T3, 12 months.

*p < 0.05.