Fluoride occurs naturally in all water supplies. At the optimum level it reduces tooth decay. Fluoride slows down the demineralisation of enamel and encourages the remineralisation of enamel.
Summary of benefits of water fluoridation:
Less decay
More caries free children
Fewer fillings
Fewer extractions
Reduces health inequalities (McGrady et al 2012) Newcastle v Manchester
Fewer general aesthetics
Keep own teeth longer
No behaviour change is needed
Cost effective: approx average cost (2014) 50p per child
Anti-fluoridation views - all 3 types of argument may be deployed (often interchangeably):
Doesn't work
Causes harm (most diseases linked)
Is "mass poisoning"/against individual choice
Alternative methods of delivering fluoride:
Fluoride varnish
Supervised tooth brushing programmes
Fluoride tablets
Fluoridated salt
Fluoridated milk
The potential impact upon the population of water fluoridation schemes:
Water fluoridation is clinically proven to improve oral health and reduce oral health inequalities
It has a protective effect which reduces the impact of a high sugar diet or poor oral hygiene
Around 10% of the population of England currently receive fluoridated water
In the most deprived areas fluoridation of water has been shown to reduce tooth decay in 5-year-olds by 1/3