DENTAL CARIES IN THE COTTON EAT(20)

tooth, the paleness of the lesions and the "bleached"appearance of the teeth (fig. 3) have been found to date to beFig. 1 Mandibular teeth of a cotton rat fed the basal ration containing dextrinin the form of a fine flour, without liver extract.associated with the feeding of diets with a high oatmeal andlow mineral content.DISCUSSIONIt is evident from the experimental procedure used thatthe cotton rats in these studies constantly consumed the samediet as their only source of nutrients for the entire experimental period. In this respect the results obtained from thesestudies cannot be applied directly to caries production inhumans, for one would not expect humans to consume theseproportions of foodstuffs each meal of the day, or for severaldays. However, the basic findings of these studies