GROSSMAN, LOUIS I.: Philadelphia, Pa. (June 7, 1938).

GROSSMAN, LOUIS I.: Philadelphia, Pa. (June 7, 1938).

Insignificant differences (0.1) occurred among pH data for sound dentin from carious, filled, or sound teeth. There was a significant difference in pH values for sound dentin and carious dentin (1.65)-8.19 for the former, 6.54 for the latter. •

Reference: None submitted.

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