Table 1.

Results of Kolmogorov–Smirnov test to check the normality of the data

Group	Sm 1	Sm 2
Observational
N	20	20
Normal parameters, mean±SD	683±420.977	659±360.991
Test statistic	0.168	0.160
P	0.141	0.192
Intervention
N	20	20
Normal parameters, mean±SD	754.500±537.797	1701.50±926.773
Test statistic	0.177	0.131
P	0.101	0.200

SD: Standard deviation; Sm: Streptococcus mutans