Peri‐implantitis treatment with an open barrier double membrane technique (collagen + dense polytetrafluoroethylene)

The authors describe a new technique for the reconstruction of intra-bony vertical defects caused by peri-implantitis, which requires the removal of the prosthetic superstructure to have better access to the surgical site, in order to perform the defect debridement and the implant surface decontamination and detoxification, before placing the reconstructive biomaterials. Two membranes are used: a collagen membrane that covers the whole defect filled with a xenograft, and a dense polytetrafluoroethylene membrane, applied over the collagen one, that is intentionally left exposed in order to easily remove it after a 5-6-week healing period without a second surgery. This cost-effective, predictable treatment protocol is indicated for the general practitioner who usually doesn't treat complex cases requiring advanced skills.