34. Mrs. Butlerasked the Minister of Health the exact nature of the proposed tests of the effects of fluoridation of the water supply upon the health and teeth of children in Watford; and with what other children the results of the tests are to be compared.
§ Mr. Walker-SmithThe effect of fluoridation is being assessed by comparing the dental condition of children in Watford with that of children in Sutton before the commencement of the study and at intervals afterwards. I am sending the hon. Member details of the arrangements.