TABLE 2.

—Effects of Sealants on Occlusal Restoration and Treatment Expenditures for Nonsealed Molars vs Molars Sealed at 5 Years of Age: North Carolina, 1985–1992

	Low Risk		Middle Risk		High Risk
	(No Prior Molar Restorations)		(1 Prior Molar Restoration)		(≥2 Prior Molar Restorations)
Age,y	Unsealed Teeth	Expected Decrease if Sealed	Unsealed Teeth	Expected Decrease if Sealed	Unsealed Teeth	Expected Decrease if Sealed
Annual Likelihood of Occlusal Restoration per Molara
5	0.0073	0.0057	0.0178	0.0148	0.0229	0.0199
6	0.0271	0.0229	0.0633	0.0556	0.0800	0.0725
7	0.0517	0.0385	0.1159	0.0918	0.1439	0.1205
8	0.0658	0.0327	0.1444	0.0850	0.1777	0.1198
9	0.0582	0.0121	0.1296	0.0477	0.1604	0.0806
10	0.0484	0.0051	0.1095	0.0325	0.1364	0.0614
11	0.0356	0.0069	0.0820	0.0302	0.1030	0.0526
12	0.0303	0.0049	0.0704	0.0245	0.0887	0.0440
Cumulative CRSO Expenditures (in Dollars) for All Occlusal Surface Treatments per Molarb
5	0.23	0.17	1.56	1.30	3.94	2.95
6	0.85	0.76	4.57	4.15	9.64	8.61
7	1.41	1.32	7.04	6.60	13.57	12.50
8	2.01	1.84	9.21	8.42	16.49	14.60
9	2.62	2.27	11.18	9.54	18.93	15.21
10	2.92	2.31	12.06	9.36	19.97	14.15
11	3.10	2.26	12.61	8.97	20.66	13.11
12	3.16	2.13	12.80	8.48	20.92	12.24

Note. CRSO = caries-related service involving the occlusal surface.

^aConditional on the tooth's not having received a CRSO at the beginning of the year.

^bIncluding tooth extractions.