Fig. 3From: Efficacy of antibacterial agents combined with erbium laser and photodynamic therapy in reducing titanium biofilm vitality: an in vitro studyRepresentative images of Ti (Titanium) discs that were worn by subjects for 3 days and then stained (magnification × 10). The panels show: A PDT; B Er:YAG; C CHX; D ControlBack to article page