An in vitro study on the efficacy of hydrogen peroxide mediated high-power photodynamic therapy affecting Enterococcus faecalis biofilm formation and dispersal

•aPDT as a complementary therapy may have valuable assistance for root canal disinfection.•Hydrogen peroxide plus high frequency laser has an efficient antibacterial and anti-biofilm performance against E. faecalis.•Hydrogen peroxide mediated aPDT showed a higher anti-metabolic activity.