Effects of Bleaching Associated with Er:YAG and Nd:YAG Laser on Enamel Structure and Bacterial Biofilm Formation

Figure 1

Scanning electron microscopy (SEM) images showing the structure of enamel surfaces (magnification up to 5,000×). (a) Control; (b) Opalescence Boost only; (c) Opalescence Boost with Er:YAG laser; (d) Opalescence Boost with Nd:YAG laser.