Abstract
Endodontic sealers that contain calcium hydroxide are claimed to possess calcification-promoting properties. Similar liners and hard-setting bases exhibit great variations in their alkalinizing potential and this property has been correlated with their biological effect. The purpose of this study was to investigate the release of calcium and hydroxyl ions from three root canal sealers by extraction with water. Calcium was assessed by EGTA titration and hydroxyl ions by measuring pH. The pattern of release of ions differed in all three sealers. In Sealapex it was similar to that of the control bases, Dycal and Life. Another sealer, Hermetic, rapidly dumped the extractable calcium hydroxide, while release of calcium from CRCS was negligible. The alkalinizing potential was more durable in all three. Disintegration of the pellets of Sealapex indicated that solubility may be the price for increased activity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
