Abstract
The main objectives of this study are: 1) to evaluate the whitening efficacy and temperature generated in enamel and pulp space through continuous or fractionated irradiation, performed for periods of 15, 30, and 45 minutes with violet LED; 2) to determine possible indirect damages caused by these violet LED irradiation strategies on MDPC-23 odontoblast-like cells in a 3D culture model. T…