Table 1.

Fluoride intake and urinary fluoride measured in the studies were selected to validate the model.

Age (years)	Children (n)	Intake (mg/day)				AuF-24 1 (mg/day)	Country
		Diet	Toothpaste	Water	Supplement
4	31	0.560	0.706	0.042	-	0.3682	Venezuela [37]
4	20	0.533	0.254	0.231	-	0.358	Chile [38]
5	61	0.151	0.608	0.407	-	0.3705	UK [39]
5	11	0.092	0.274	0.111	0.455 2	0.476	Germany [40]
7	21	0.187	0.606	0.154	-	0.297	UK [41]
7	12	0.229	1.130	0.349	-	0.393	UK [41]

¹ Amount of urinary fluoride excreted in 24 h. ² Fully absorbed fluoride tablets.