asked Her Majesty's Government:
Further to the Written Answer by Lord Darzi of Denham on 21 November 2007 (WA 78), why the advice note to which the Answer referred members of the public on the British Fluoridation Society's website does not mention the assessment of the prevalence of dental fluorosis of aesthetic concern by the systematic scientific review into water fluoridation by the University of York in 2000; whether the society should have done so; and how the scientific review's assessment compares with the other publications cited by the society.
The University of York identified 88 research studies relating to dental fluorosis of which only one was ranked in category B (evidence of moderate quality) and the remainder in category C (lowest quality of evidence). The researchers qualify their estimates of the extent of fluorosis of aesthetic concern by reporting that "the precision of these rough estimates is low".
We share the British Fluoridation Society's view that new research is required, which is why the department is funding a project aimed at measuring the prevalence and severity of dental fluorosis.