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21 April, 02:51

The Kingston-Newburgh study of fluoride for the prevention of tooth decay was a community trial that was a form of what kind of study?

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  1. 21 April, 02:59
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    Community trial type of study.

    Explanation:

    • Since 1945, fluoride was added to Newburgh's water supply.

    • Water supply in Kingston was not fluoridated.

    • The two communities were experiencing similar tooth decay condition.

    • After 10 years, children from Newburgh experienced less tooth decay compared with their counterparts at Kingston, with no side effect on their health.
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