Table 5. Caries incidence and relative risk in teeth with sealant.

	IR - exposed	IR - non-exposed	CI	RR	CI 95%	P value
FPM16	25.0	50.0	38.5	0.52	0.52 - 0.85	p=0.0062
FPM26	20.0	70.0	42.2	0.29	0.17 - 0.48	p<0.0001
FPM36	21.8	63.7	41.8	0.34	0.21 - 0.57	p<0.0001
FPM46	25.8	57.8	42.6	0.45	0.27 - 0.72	p=0.0004

IR= Incidence rate; CI= Cumulative incidence; RR= Relative risk