Experimental Rat Caries IV. Effect of a Natural Salt Mixture on the Caries-Conduciveness of an Otherwise Purified Diet

Abstract
More carious lesions were observed in rats receiving a purified ration complete in known essentials than in those receiving the same ration with the ash of a natural diet as the source of minerals. It appears that the factor or factors involved take on major significance after prolonged ingestion by the mother and offspring during as well as after pregnancy. It is suggested that the observed caries protection may have resulted from the presence of certain trace elements in the ash mixture of the natural stock diet.