Thunder Bay, Ontario (20-Jul-2009, 8 min. 51 sec.)
Health Canada’s Chief Dental Officer Dr. Peter Cooney insists community water fluoridation is the best way to reduce dental cavities/caries, during a City of Thunder Bay, Ontario council meeting on July 20th, 2009; under questioning from Thunder Bay Councillor Frank Pullia.
Now consider this:
In 1992 Comox/Courtenay/Campbell River communities in British Columbia, Canada ceased fluoridating their drinking water supplies.
Two Canadian studies were ultimately conducted by the same researchers on this same population event.
One study focused upon dental caries rates following this fluoridation cessation.
The other study measured the prevalence and severity of dental fluorosis following this fluoridation cessation.
These two studies could have ended debate about artificial water fluoridation. How? By publishing all the results together in one place and time.
Remarkably, the two pieces of this single cohesive Canadian study were published separately, and five years apart, overseas in a Danish journal.
Why publish this correlated data separately, and five years apart? Taken together, this research clearly shows that water fluoridation is not successful at reducing dental caries rates. Something happened when local fluoridation was shut-off, which resulted in an overall decline in the population’s dental caries rates. In fact, after fluoridation was shut-off, caries rates dropped and continued to drop, as did dental fluorosis rates. The only thing known to causes dental fluorosis is ingesting (swallowing) too much fluoride. Therefore, when dental fluorosis rates drop, you know the population is swallowing less fluoride. Relevant confounding variables were controlled for during this research. The use of fluoride supplements and fluoride dentifrice (fluoride toothpaste) also decreased during this same time period. Furthermore, shutting off local fluoridation does not suddenly alter or change a given population’s present socioeconomic status, level of education, health/dental insurance, diet, access to and use of tooth brushing, parenting skills, general lifestyle, method of earning a living, and so fourth. That makes this research noteworthy in its variable controls. Fluoridation was shut-off, and there was no subsequent heightened alternative fluoride ingestion, as was demonstrated by the noticeable decline in dental fluorosis rates within the communities studied.
The two separately published studies:
Gerardo Maupome´, D. Christopher Clark, Steven M. Levy & Jonathan Berkowitz, Patterns Of Dental Caries Following The Cessation Of Water Fluoridation, Community Dentistry And Oral Epidemiology, 2001, 29: 37–47
Researchers compared prevalence and incidence of dental caries between fluoridation-ended and still-fluoridated communities in British Columbia, Canada. Data was collected on snacking, oral hygiene, exposure to fluoride technologies, and socioeconomic level. The prevalence of dental caries decreased over time in the fluoridation-ended community while remaining unchanged in the still-fluoridated community. Quick assumption was made that multiple sources of alternative fluoride, besides water fluoridation, must have been responsible for dental caries decline in the fluoridation-ended community. No mention was made about any attempt to measure dental fluorosis in the fluoride-ended community to determine if fluoride was still being received through other sources. Why not, since that data was also available to these researchers?
D. Christopher Clark, Jay D. Shulman, Gerardo Maupome´ & Steven M. Levy, Changes In Dental Fluorosis Following The Cessation Of Water Fluoridation, Community Dentistry And Oral Epidemiology, 2006 34: 197–204
Five years later in the same Danish journal these researchers published the findings on the prevalence of dental fluorosis after water fluoridation ended. (Why a Danish journal when these are Canadian studies?) When fluoride was removed from the water supply the prevalence and severity of dental fluorosis decreased significantly. The use of fluoride supplements and fluoride dentifrice (fluoride toothpaste) also decreased during this same time period.
Something even more troubling:
Health Canada’s Chief Dental Officer Cooney , as well as Clark and Levy (two principal researchers leading these two studies, and two of six experts sitting as Health Canada’s 2008 review panel on water fluoridation) are aware of this research, yet the expert panel still voted unanimously to support water fluoridation policy in Canada.
A legitimate concern:
Why not tell the public the whole truth?
If the public was told the whole truth we would all know the questionable ‘merits’ of water fluoridation.