2015-06
Dental bleaching agents with calcium and their effects on enamel microhardness and morphology
To evaluate enamel microhardness and morphology after bleaching with hydrogen peroxide containing calcium in different concentrations. One hundred specimens of human teeth were ground and polished and had the initial microhardness evaluated. The specimens were randomly assigned into five groups (n=20): Group 1 - Control group (no treatment); Group 2 - Home Peroxide 6% (without calcium); Group 3 - Home Peroxide 7.5% (without calcium); Group 4 - White Class 6% (with calcium); Group 5 - White Class 7.5% (with calcium). For each gr...
