pH values of pulp-capping agents.

Calcium hydroxide has been used extensively in dentistry. Few investigators have reported the pH values of pulp-capping agents containing calcium hydroxide. The purpose of this study was to evaluate pH levels of eight pulp capping agents containing calcium hydroxide. The results indicate that the pH values of five capping agents tested are neutralized by the dentin wall, but that three of these capping agents are not neutralized.