Abstract
Dogs' dental pulps were capped with calcium hydroxide, barium hydroxide, or strontium hydroxide. Forty-eight hours after treatment, all pulps had a layer of large carbonate granulations that were von Kossa positive, birefringent to polarized light, and localized mainly in the area between the necrotic and the living pulp tissue. In the pulps treated with barium or strontium hydroxide, the histochemical analysis showed that the metal of these granulations came from the capping material. These data suggest that the calcium from calcium hydroxide may participate in the composition of the birefringent granulations observed in the calcium hydroxide group.
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