Atraumatic Extraction Followed By Immediate Implant Placement In An Infected Tooth Socket: A Clinical And Radiographic Study

Aim and Objectives: The present study was undertaken to assess success rate of immediately placed implant in infected dento- alveolar sockets with simultaneous placement of PRF gel in the horizontal gap between implant and bone, PRF membrane covering implant using a two stage protocol. Methods : Implants were immediately placed in 12 patients following a 2-stage submerged protocol. The extraction sockets were irrigated with tetracycline solution. PRF was used to fill the gap between the implant body and the surrounding socket wall. The final restoration was placed after 3-months following implant placement. The modified plaque index (MPI) and modified bleeding index (MPI) were measured at baseline and 3 months. Vertical and horizontal bone loss was measured at baseline, 6 and 9 months using IOPA with grid scale. Result : The mean FMPI score was 0.35±0.03 and at 6 months it was 0.25±0.03. At 9 months follow up, the FMPI was slightly increased as compared to the baseline, but the increase was not significant. The mean horizontal bone level at mesial surface of implant at baseline was 0.20±0.25mm, at 9 months it was increased to 0.25±0.26mm at mesial surface. Immediate implants with placement of PRF in infected extraction socket, as a 2 stage protocol resulted in horizontal alveolar bone crest resorption of 0.26mm and 0.3 mm on the mesial and distal surface of implant respectively. Conclusion : Atraumatic extraction followed by placement of implant in infected socket with placement of PRF and implant covered by PRF membrane resulted in 100% survival rate. Clinical and radiographic data after 3 months of loading showed that peri- implant tissue was healthy and marginal bone resorption values were minimal around implants.