The preventive/therapeutic effect of CO laser and MI Paste Plus® on intact and demineralized enamel against (In Vitro Study).

Background: To evaluate the preventive and therapeutic effects of CO laser and MI paste plus on intact and demineralized enamel surfaces and their impact on bacterial adhesion. Methods: 160 enamel slabs were prepared and randomly allocated into two main groups; sound and demineralized enamel (n = 80 per group), in which specimens were immersed in a demineralizing solution (50 mM acetic acid, pH 4.5) for 72 h at 37 °C.