American Dental Association Description of Toothpaste"Toothpaste". April 15, 2010.
"Toothpaste overdose". National Library of Medicine. National Institutes of Health. Retrieved 7 February 2014.
Wolfgang Weinert in "Oral Hygiene Products" Ullmann's Encyclopedia of Industrial Chemistry, 2005, Wiley-VCH, Weinheimdoi:10.1002/14356007.a18_209
Nevitt GA, Witter DH, Bowman WD (September 1958). "Topical applications of sodium fluoride and stannous fluoride". Public Health Rep 73 (9): 847–50. doi:10.2307/4590256 . PMC 1951625. PMID 13579125