Fig. 12From: Enhanced reduction of polymicrobial biofilms on the orthodontic brackets and enamel surface remineralization using zeolite-zinc oxide nanoparticles-based antimicrobial photodynamic therapyTreatment process; a Fabrication of enamel slab bonded bracket attached to the stainless-steel orthodontic wires, b Immersion of the enamel slab bonded bracket in wells of the microplate containing growth medium to formation of microbial biofilms on enamel slab bonded bracket, c Rinsing of the enamel slab bonded bracket with sterile saline to eliminate the planktonic and weak attached microorganisms, d Treatment of enamel slab bonded bracket with different concentrations of Zeo/ZnONPs, and e Irradiation of treated enamel slab bonded bracket with a blue laser lightBack to article page