Abstract
Summary
Activity of the thyroid gland appears to be related to incidence of dental caries in the rat. These conclusions are based upon experimental observations that administration of desiccated thyroid reduces dental caries and thiouracil increases it. This cario-genic effect might be related to subsequent function of salivary glands, since it has been shown that when desiccated thyroid and testosterone were administered together it increases to a greater degree the anti-cariogenic effect of desiccated thyroid. This fact is in keeping with the observation that testosterone increases activity of the thyroid gland and that the thyroid gland is related to the function of the submaxillary gland.
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