DENTAL CARIES IN THE COTTON EAT(24)

finely ground dextrin. In addition to the effectof different particle sizes and impaction, Hoppert et al. ( '32)noted the influence of another type of retention due to plasticity and adhesiveness. Data obtained in this laboratory(Constant, '51) have shown that higher levels of calcium orthe feeding of highly basic salts considerably reduced cariesproduction by high sucrose or high cereal diets. It is of interest to point out that the 67% sucrose diet contained twiceas much minerals as the natural diet. Although the influenceof the differences in the physical characters of the naturaland the synthetic diets cannot be properly evaluated at thistime, it is suggested that the primary cause of the greatercariogenicity of the natural diet is the decreased bufferingand neutralizing capacity of t