Interpreting the Newcastle fluoride bioavailability study

doi:10.1136/bmj.39374.404502.BE

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Stephen T Holgate, MRC clinical professor of immunopharmacology1,
Trevor A Sheldon, professor and pro-vice chancellor2

¹IIR Division, Southampton General Hospital, Southampton SO16 6YD
²Health Services Research, University of York, York YO10 5DD

sth{at}soton.ac.uk

We are surprised that the chief dental officer and chief medical officer for England in their full response to Cheng et al consider that the Newcastle study on bioavailability “contributed to a better understanding of the health effects of water fluoridation.”1 2 The researchers themselves urged caution when interpreting the …