Abstract
This study will evaluate the efficacy, mineral content, and biocompatibility (in vitro) of an experimental bleaching agent composed of hyaluronic acid (HA), NF_TiO2 nanoparticles (NPs), and low concentrations of hydrogen peroxide (HP). This project will be divided into two studies. In study 1, sound enamel specimens will be treated with: HP (hydrogen peroxide 35%, commercial control), (PH…