Advisement & grade school math for Kingston Council: even Colgate warns public against fluoride for kids under age 2

Sent via email, February 6, 2020 (be sure to scroll down and see the disturbing response from Councillor Mary Rita Holland).

Dear Members of Kingston Council,

With regards to your idea of adding fluoride to other people’s drinking water for an alleged therapeutic purpose, be advised:

Even Colgate warns:

“Opt for a toothpaste without fluoride if you’re allergic to fluoride. You may also want to choose a different toothpaste if you have certain medical conditions..”

“If you have a child under the age of two, the child should definitely be using a fluoride-free toothpaste…”
https://www.colgate.com/en-us/oral-health/basics/fluoride/why-use-a-fluoride-free-toothpaste-0414


Meanwhile, grade school multiplication proves that every 350 ml glass of ‘optimally’ fluoridated water contains the exact same dose of fluoride (0.25 mg) that everyone agrees young children must spit out (or avoid entirely) when brushing their teeth (Health Canada, FDA, CDC, CDA, ADA). 

0.7 ppm fluoride concentration means there is 0.7 mg fluoride in each litre (each 1000 grams) of water (https://cfpub.epa.gov/ncer_abstracts/index.cfm/fuseaction/display.files/fileid/14285).

0.35 L x 0.7 mg / L = 0.245 mg fluoride In every 350 ml glass of water.

A typical pea-sized bit of fluoridated toothpaste contains 0.25 mg fluoride.

The amount of fluoride recommended by Health Canada before 6 months of age, or before teeth erupt: 0 mg.

References:

CDC February 1, 2019, Use of Toothpaste and Toothbrushing Patterns Among Children and Adolescents — United States, 2013–2016: https://www.cdc.gov/mmwr/volumes/68/wr/mm6804a3.htm

CDC August 17, 2001, Recommendations for Using Fluoride to Prevent and Control Dental Caries in the United States: https://www.cdc.gov/mmwr/preview/mmwrhtml/rr5014a1.htm

  • “each gram of fluoride toothpaste, as formulated in the United States, contains approximately 1.0 mg of fluoride“
  • “a pea-sized amount (approximately 0.25 g) of fluoride toothpaste“
  • thus, each pea-sized bit of fluoride toothpaste (0.25 g) contains approximately 0.25 mg fluoride
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Health Canada 2013-05-08, Pediatric and Adolescent Care – Chapter 7 – Nutrition: https://www.canada.ca/en/indigenous-services-canada/services/first-nations-inuit-health/health-care-services/nursing/clinical-practice-guidelines-nurses-primary-care/pediatric-adolescent-care/chapter-7-nutrition.html

Supplemental Information:

The typical concentration of sodium fluoride, NaF, in fluoride toothpaste is 0.243% (NRC 2006: https://www.nap.edu/read/11571/chapter/4#41).

The ratio of F to NaF is 19/42 (American Water Works Assoc. 2010: WSO: Basic Science Concepts and Applications, Fourth Edition, ISBN: 9781583217788, page 497) .

The typical concentration of fluoride in fluoride toothpaste is thus 19/42 x 0.243% = 0.11%, approximately 1 part in 1000, aka 1,000 ppm.  In other words there is approximately 1 mg of fluoride in 1 gram of fluoride toothpaste, as indicated by the CDC, above.

Further reading

Best wishes,
Christine Massey, M.Sc.
Brampton, ON
Fluoride Free Peel

Screenshots of some email & social media activity by certain Kingston Councillors:

Councillor Wayne Hill references Science Media Centre’s cherry-picked collection of comments (not published, peer-reviewed scientific articles) on the JAMA Pediatrics (a journal of the American Medical Association) study. 
Science Media Centre and their chosen experts were quick to cast doubt over the quality of the double-reviewed and government-funded study that replicated the earlier fluoride/IQ finding of Bashash et al. (2017) and prompted the JAMA Pediatrics editor Dimitri Christakis, MD, MPH to state publicly that he would no longer want his wife drinking fluoridated water while pregnant. Science Media Centre and their chosen experts were quick to cast doubt over the quality of the double-reviewed and government-funded study that replicated the earlier fluoride/IQ finding of Bashash et al. (2017) and prompted the JAMA Pediatrics editor Dimitri Christakis, MD, MPH to state publicly that he would no longer want his wife drinking fluoridated water while pregnant.