Comparison 4. Glass ionomer‐based sealants versus resin sealants.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Caries yes/no at 12 months	6		Odds Ratio (Fixed, 95% CI)	1.47 [0.64, 3.37]
1.1 Low‐viscosity glass ionomer versus resin sealant	4		Odds Ratio (Fixed, 95% CI)	1.56 [0.63, 3.87]
1.2 Resin‐modified glass ionomer versus resin sealant	2		Odds Ratio (Fixed, 95% CI)	1.06 [0.13, 8.58]
2 Caries yes/no at 24 months	14		Odds Ratio (Random, 95% CI)	Subtotals only
2.1 Low‐viscosity glass ionomer versus resin sealant	10		Odds Ratio (Random, 95% CI)	1.67 [0.87, 3.20]
2.2 High‐viscosity glass ionomer versus resin sealant	2		Odds Ratio (Random, 95% CI)	1.36 [0.56, 3.32]
2.3 Resin‐modified glass ionomer versus resin sealant	2		Odds Ratio (Random, 95% CI)	2.92 [1.77, 4.81]
3 2 year DFS increment	1	394	Mean Difference (IV, Fixed, 95% CI)	0.47 [0.31, 0.63]
4 Caries yes/no at 36 to 48 months	8		Odds Ratio (Random, 95% CI)	Totals not selected
4.1 Low‐viscosity glass ionomer versus resin sealant	6		Odds Ratio (Random, 95% CI)	0.0 [0.0, 0.0]
4.2 Resin‐modified glass ionomer versus resin sealant	2		Odds Ratio (Random, 95% CI)	0.0 [0.0, 0.0]
5 Caries yes/no at 5 years, high‐viscosity glass ionomer	1		Risk Ratio (Fixed, 95% CI)	0.38 [0.09, 1.60]
6 Caries yes/no at 7 years	1		Risk Ratio (Fixed, 95% CI)	1.44 [0.88, 2.35]