Design, synthesis and application of gold nanoparticles in tooth whitening process

Abstract

In this present work, gold nanoparticles coated with citrate was first synthesized and then it was used as a nanocomposite catalytic both for oxidizing and for reducing hydrogen peroxide (H₂O₂), to whiten teeth. Dyes were used to stain the tooth specimens for three days and subsequently bleached using H₂O₂ alone, H₂O₂ plus gold nanoparticles. The results of bleaching teeth with and without Luma care irradiation were compared.