Table 4.

ICDAS Class Scores of Lesion Progression in Test and Control Groups at Baseline and 3- and 6-mo Follow-up.

	Test Group (n = 31)		Control Group (n = 34)
	n (%)	Missing Subjects	n (%)	Missing Subjects	Odds Ratio (95% CI)a,b	P Value
Baseline		0		0
1	2 (6)		14 (41)
2	26 (84)		18 (53)
3	3 (10)		2 (6)
3 mo		2		4
1	4 (14)		11 (37)
2	24 (83)		15 (50)
3	1 (3)		4 (13)
6 mo		1		2
1	8 (27)		13 (41)
2	20 (67)		16 (50)
3	2 (7)		3 (9)
Baseline vs. 3 mo		2		4	10.1 (1.0 to 106)	0.0531
Regression	5 (17)		1 (3)
Progression	0 (0)		3 (10)
Baseline vs. 6 mo		1		2	3.9 (0.9 to 16.8)	0.0665
Regression	9 (30)		2 (6)
Progression	2 (7)		3 (9)
Baseline vs. 3 and  6 mo		0		0	5.1 (1.3 to 19.5)	0.0182

Data are presented as the n (%) of subjects per group by ICDAS classification (1 to 3).

ICDAS, International Caries Detection and Assessment System.

^aAdjusted baseline values of ICDAS, age, sex, and plaque.

^bOdds ratios are for the control group with the test group as reference.