Tagged: Dental fluorosis

The 52 IQ studies used by anti-fluoride campaigners - Open Parachute

Ken Perrott Mar 28, 2018

Slide number 30 from Paul Connett presentation prepared for a talk at NZ Parliament buildings in February 2018. Continuing my critique of the presentation prepared by Paul Connett for his much-publicised meeting at Parliament Building in February. The meeting attracted only three MPs but his presentation is useful as it presents all the arguments anti-fluoride campaigners rely on at the … Read More

Cochrane fluoridation review. III: Misleading section on dental fluorosis - Open Parachute

Ken Perrott Jul 03, 2015

The Cochrane review did not look at the effect of community water fluoridation (CWF) on dental fluorosis. It simply reviewed data on the prevalence of dental fluorosis at different fluoride drinking water concentrations – up to 7.6 ppm which is … Continue reading → … Read More

Severe dental fluorosis and cognitive deficits – now peer reviewed - Open Parachute

Ken Perrott Jan 18, 2015

Last May I raised the possibility that the much touted relationship of small IQ declines for children living in areas with naturally high fluoride in drinking water could be associated with severe dental fluorosis and not a chemical neurotoxicant (see Confirmation blindness on the fluoride-IQ issue). In November I repeated this argument because the recently published work by Choi … … Continue reading … Read More

Did the Royal Society get it wrong about fluoridation? - Open Parachute

Ken Perrott Dec 14, 2014

Did the Royal Society of NZ and the Office of the NZ Prime Minister’s Chief Science Advisor make a big mistake in their report Health Effects of Water Fluoridation: a Review of the Scientific Evidence)? Did they misrepresent a scientific paper which … Continue reading → … Read More

Do you prefer dental fluorosis or tooth decay? - Open Parachute

Ken Perrott Sep 07, 2014

Anti-fluoride propagandists often use the incidence of dental fluorosis as an argument against community water fluoridation. However, they exaggerate the problem by misrepresenting the issue in two ways: 1: They present the issue as if the figures for the incidence of dental fluorosis relate to the severe forms when they don’t. Most cases of dental … … Continue reading … Read More

Confirmation blindness on the fluoride-IQ issue - Open Parachute

Ken Perrott May 29, 2014

Confirmation bias is a human problem – especially in organisations with a political or ideological agenda. Not surprising then to find it rampant among those opposing fluoridation. It sticks out like the proverbial when opponents of community water fluoridation claim the practice causes a decline in child IQ. That debate is raging at the moment because a … … Continue reading … Read More