Table 4.

Proportion of students who participated temporarily in specific fluoridation measures

	Fluoride usage at home								Topical fluoride application at the dental practice				Fluoride application at school
	toothpaste		tablets		table salt		gel		varnish		solution		varnish
	%	n	%	n	%	n	%	n	%	n	%	n	%	n
4th-graders
No	3.4	35	11.7	119	32.6	332	46.3	472	55.2	562	77.4	789	78.4	220
Yes	85.4	875	79.1	806	58.4	595	42.1	429	40.3	411	18.1	184	21.6	799
Missing information	11.2	114	9.2	94	9.0	92	11.6	118	4.5	46	4.5	46	-	-
6th-graders
No	2.1	19	13.0	120	38.5	357	46.9	434	53.5	495	78.8	740	75.1	695
Yes	83.6	775	77.8	720	53.0	491	40.4	374	42.9	397	17.5	152	23.7	219
Missing information	14.3	132	9.2	86	8.5	78	12.7	118	3.6	34	3.7	34	1.2	11