Further Studies on the Use of Nutritionally Adequate Diets for the Production of the Periodontal Syndrome in the Rice Rat

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Abstract
The oral and systemic interrelation -ships of diets with diverse ability to produce the periodontal syndrome in rice rats were studied. Intermittent feeding of Diet-700 with a high potential to produce the periodontal syndrome and Diet-770 with a very low potential resulted in development of the syndrome at a rate roughly proportional to the frequency with which Diet-700 was fed. Dilution of laboratory meal, which has a low potential to produce the periodontal syndrome, with either Diet-700 or sucrose increased in the periodontal syndrome roughly proportional to the amount of Diet-700 or sucrose in the dietary mixture. The addition of 0.5 or 2.0% sodium dihydrogen orthophosphate to Diet-700 had no influence on the development of the periodontal syndrome. The addition of 4.0% sodium dihydrogen orthophosphate slightly reduced the calcified-tissue lesions but had no influence on the soft-tissue lesions.