Research shows water fluoridation is safe for children

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water fluoridation safe for children
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Research from The University of Queensland has found no link between community water fluoridation and adverse effects on children’s brain development.

The study—published in the Journal of Dental Research—examined the difference between the brain development and function of children who’d been exposed to fluoridated water in early childhood with those who weren’t. 

“We found emotional and behavioural development, and functions such as memory and self-control, were at least equivalent to those who had no exposure to fluoridated water,” Professor Loc Do from UQ’s School of Dentistry said.

“In other words, there was no difference in child development and function related to fluoridated water.

“This finding shows that consuming water with fluoride at levels used for public supplies in Australia is safe and it supports continuing and expanding fluoridation programs.”

Currently, approximately 90 per cent of the Australian population has access to fluoridated water, although in Queensland it is 71 per cent. Many regional Queensland areas and Aboriginal and Torres Strait Islander communities are not covered by a fluoridation program. 

“A small but vocal group of people sometimes claims that water fluoridation can have adverse neurodevelopment effects, especially in young children,” Professor Do said.

“This concern can impact community and public health support for the practice, but our research provides reassurance that it is safe and supports its expansion into more communities.

“This is an important message because fluoride is extremely effective in preventing tooth decay and its use in water and toothpaste is credited with significant improvements in child dental health in Australia.”

The UQ study followed up child participants of Australia’s National Child Oral Health study 2012-2014 when they were aged 12 to 17 years. It measured their emotional and behavioural development using a Strengths and Difficulties Questionnaire and executive brain function using the Behaviour Rating Inventory of Executive Function—both instruments widely used in population health surveys.

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