@misc{miscac814bc3,
title   = {Surface morphology changes following bleaching},
author = {Oyama, Kazumi Onaga Nagayama and Guimarães, S. M. D. B. and Siqueira, E. L. and Azambuja Júnior, Nilton and Santos, Marcelo dos},
year = {2002},
booktitle   = {International Association for Dental Research. Annual Meeting. Brazilian Division}
}