DENTIN PENETRATION OF 2 CALCIUM HYDROXIDE COMBINATIONS

Objective. Calcium hydroxide is a common intracanal medicament. The po wder can be mixed with different vehicles for placement in canals. Thi s study examines pH changes in dentin with 2 different calcium hydroxi de preparations. Study design. The combinations used were calcium hydr oxide + distilled water and calcium hydroxide + glycerin (1/7 distille d water). One hundred forty extracted teeth with single canals were us ed, pH changes in dentin after the intracanal placement of these combi nations were evaluated at different dentin thicknesses by measuring th e pH of the external environment. Results. For all dentin thicknesses and at all time periods, the calcium hydroxide + glycerin combination showed significantly higher pH values than the calcium hydroxide + dis tilled water combination. Conclusions. Considering pH elevations, we p ropose the use of a calcium hydroxide + glycerin combination.