Nutrition of the dental tissues is still a virgin field, for few investigators admit its presence or necessity. All investigators realize the importance of a properly balanced diet during the period of formation of teeth, but the question of whether this continues to apply after the completion and eruption of the teeth is, as yet, under active discussion. Histologists generally do not believe this to be the case, for no system of channels joining the enamel with the vascular system of the body is believed to exist. To prove that such a system exists is my purpose in this paper.
There has been much discussion in the literature concerning the effect of diet on the welfare of the teeth. An investigator who has contributed greatly to this subject is Dr. Percy R. Howe1; he was able to develop dental decay in monkeys fed on deficient diets. Much more work