REFERENCES:
(1.) Wellock, W.D. and Brudevold, F.: Arch. Oral Biol., 10, 453-460 (1965) (2.) Jiang, H et al.:J. Dent, 33, 469-473 (2005) (3.) National Toxicology Program: NTP TR 393, NIH Publication 91-2842, (1990) (4.) Bucker, J.R et al.L Int. J. Cancer 48, 1118-1126 (1990) (6.) Martin, G.R. et al.: Mutat. Res. 66, 159-167 (1979) (7.) Agency for toxic Substances and Disease Registry: Toxicological Profile for Fluorides (2003) (8.) Aardema, M.J. et al.: Mutat. Res. 331 (1), 171-172 (9.) National Research Council: Fluoride in Drinking Water (2006) (10.) Heindel, J.J. et al.: Fundam Appl Toxicol, 30, 162-177 (1996) (11.) Institute of Medicine, Food and Nutrition Board: Dietary Reference Intakes (1997) (12.) Collins, T.F et al.: Food Chem. Toxicol. 33 (11), 951-960 (13.) Collins, T.F. et al.: Food Chem Toxicol. 39 (8), 867-876