Confocal laser scanning microscopy images of S. aureus attached to the zirconia disks (original magnification: 10×). Live bacteria appear green, dead bacteria appear red, and the overlap areas appear yellow. CLSM revealed a greater number of dead bacteria in the CHX, TC and PDT groups compared to that in other groups. (A) Control group, (B) CHX group, (C) TC group, (D) TBO group, (E) Laser group, (F) PDT group.
CHX, chlorhexidine; TC, tetracycline; TBO, toluidine blue O; Laser, cold diode laser; PDT, photodynamic therapy.
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