Two Years Follow up of Polyetheretherketone (PEEK) Sub-periosteal Implant Retaining Maxillary Fixed Prosthesis

This clinical trial demonstrates prosthetic management of patients complained from lack of satisfaction and function of maxillary conventional complete denture as a result of severe maxillary ridge resorption seeking for fixed restoration. They were attended to the Department of Prosthodontics, Faculty of Dentistry, Mansoura University (Mansoura, Egypt). They demonstrated sever bone loss especially in the posterior region which complicate conventional implant placement for full arch prosthesis. Eight PEEK sub-periosteal implants were surgically placed. Probing depth was measured after three \& six months from sub-periosteal implant placement. Tumor necrosis factor-alpha (TNF-α) \& Interleukin-8(IL-8) Peri-abutment cervicular fluid were measured one month, three months , six months \& one year from sub-periosteal implant placement. Clinical \& Radiographic examination (CBCT) was done two years after sub-periosteal implant placement.