Effects of personalized oral hygiene management on oral health status of pregnant women

Table 3 Comparison of Cariostat caries activity test scores of high- and low-risk groups, mean ± SD

Time of CAT	Experimental groups			Control groups
	High-risk group (n = 29)		Low-risk group (n = 29)	High-risk group (n = 28)	Low-risk group (n = 28)
Initial	2.43 ± 0.44	0.53 ± 0.42		2.45 ± 0.42	0.50 ± 0.36
After 3 months	1.74 ± 0.47a	0.43 ± 0.39		2.50 ± 0.38	0.46 ± 0.33
After 6 months	0.53 ± 0.50a	0.45 ± 0.36		2.45 ± 0.42	0.57 ± 0.32

^aP < 0.0001 vs control group.

CAT: Cariostat caries activity test.