Abstract
Objective: To comparatively evaluate peri-implant tissue changes around the nano-pore implant surface with or without platelet rich fibrin (PRF). Material and methods: For the present study, a total of 17 patients was initially enrolled (6 females, 11 males), and 38 sites (19 control and 19 experimental sites) were randomly assigned to either group 1 (control), i.e. extraction site received immediate implants without any PRF, and group 2 (experimental), i.e. extraction sites received immediate implants with PRF. Clinical and radiographic parameters were recorded for 9 months after the implant-loading phase. Results: Clinically, there was a significant (p < 0.001) increase in the peri-implant probing depth from the prosthetic phase up to 9 months in both the groups, and the increase was greater in the control group. However, the mean difference in the changes between the two groups was non-significant. The modified gingiva index for group 2 was significantly lower than that for group 1 in the prosthetic phase. Radiographically, in the control group and experimental group, there was a significant increase (<0.01) in bone loss (BL) in the mesial and distal aspect of the implant from the surgical to prosthetic phase, surgical up to 9 months and from the prosthetic phase up to 9 months. There was greater BL in the control group than in the experimental group in both the mesial and distal aspect of the implant; however the difference in BL was non-significant (<0.01). There was greater BL in the distal aspect than in the mesial aspect in both groups; however, the difference in BL was non-significant. Conclusion: PRF treatment may provide a way to prevent BL during the surgical-to-prosthetic phase. These results were based on a short-term, low sample randomized clinical study, therefore a long-term study with more sites and homogenous sampling is recommended.
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