Florez, F. L ELins, E. C C CPortero, P. [UNESP]Lizarelli, R. F ZOliveira, O. B. [UNESP]Bagnato, V S2014-05-272014-05-272007-08-31Progress in Biomedical Optics and Imaging - Proceedings of SPIE, v. 6425.1605-7422http://hdl.handle.net/11449/69830The dental bleaching is known for many years. Recently a technique employing light has open up new and exciting possibilities. Besides its vast application there are still many important points to be understood about teeth photon bleaching. In this work we present an in vitro experiment to explore the main mechanisms involved during the photon action in tooth whitening. Our results indicated that light at same wavelengths are great absorbed by pigments creating a local heating which considerably increase the bleaching rate. This results in a fast reaction without heating the whole dental structure. We discuss details of our experiment. Work supported by Fapesp and CNPq.engBleachingLight absorptionPhotonsPigmentsDental bleachingDental structurePhoton bleachingDentistryTrabalho apresentado em evento10.1117/12.700517Acesso aberto2-s2.0-34548211933