Photoinactivation of bacterial strains involved in periodontal diseases sensitized by porphycene-polylysine conjugates

Selected bacterial strains that are responsible for periodontal diseases are efficiently inactivated by visible light irradiation in the presence of porphycene-polylysine conjugates. Repeated photosensitization of surviving cells does not induce the selection of resistant bacterial strains and does not modify their sensitivity to antibiotic treatment.