The teeth of different tribes on the two Sumatra Islands, Timor and Rote, showed marked differences in occurrence of caries. In the inner parts of Timor there was much caries in an isolated tribe, which had been on the same diet for many generations. Climatic influences (more rainy days and diminished sunshine) appeared to be responsible. The exceptionally high resistance to caries on the Isle of Rote was ascribed to the dietary preponderance of products, of the Lontar palm-tree, having high contents of vitamin C. [Reported by Rudolf Jeanneret.]
Reference: Schw. Monat. Zahnh., 1936.
MILLER, SAMUEL C., and NEUWIRTH, ISAAC : College of Dentistry, New
York University, New York City (Oct. 7, 1938).
Rampant caries, in humans, is induced by excessive use of hard candies and cough drops, consisting chiefly of cane sugar. Non-detergent diets, e.g., diets rich in soft bread, cake, cereals, malted milk and pasty foods, are conducive to caries. Tooth decalcification is induced by excessive intake of fruits containing citric or malic acid.
References: Den. Cosmos, 1935; Textbook of periodontia (Miller), 1938, pp. 414, 433 (P. Blakiston’s Son and Co., Philadelphia).
metabolic processes, oral secretions, and tooth construction. Successful treatment depends upon repair of destroyed tooth-structure, determination in each individual case of the active contributing factors, and their elimination by methods that are compatible with the general health of the patient.
Reference: J. Pediat. (Proc. Amer. Acad. Pediat., 1938), 14, 118, 1939.