Periodontal regeneration procedures may induce colonization by glycocalyx-producing bacteria.

Sixteen patients that underwent periodontal regeneration procedures by implantation of Goretex membranes were studied to evaluate the microbiota that colonized membranes. The microbiological follow-up showed that colonization was principally due to opportunist gram-negative glycocalyx-producing bacteria. The comparison of the microbial flora of treated and untreated sites showed the influence of surface characteristics on the quality of the resident microbiota. These findings suggest the necessity for developing efficient prohylactic protocols for these cases.