Comparison between the Effect of Advanced-Platelet Rich Fbrin and Leukocyte-Platelet Rich Fibrin on the Number of Fibroblasts Adhered to Collagen Membrane

Growth factors and cytokines in the platelet playa major role inthe progression of inflammation and healing processes, therefore A-PRF and L-PRF as platelet drive ingredients are widely used in periodontal treatments. The purpose of this study is to compare the effect of A-PRF and L-PRF on the number of gingival fibroblastsadhered to collagen membrane.Materials & Methods:In this In-vitro study conductedin winter of 2021 at the Iranian biological resource center, the membrane was cut into five pieces (5x5mm) and placed at the bottom of a 5 well plate. 1 milliiiter of (A-PRF) was added to two wells ineach group. And a similar amount of L-PRF was added to two wells in theother two groups.The last well was left A-PRF or L-PRF free. Gingival fibroblasts were seeded inall the wells. Cell adhesion was evaluated by means of a Field Emission Scanning Electron Microscope after 24 hours of incubation. The Data wereanalyzed by, one way and two-way ANOVA and Scheffe test (p value < 0.001).Results:based on ANOVA there was a statistically significant difference In the A-PRF+ group and L-PRF+ group (12.50 and 13.57) compared to the control group (4.67) (p value < 0.001).and Scheffe analysis showed no statistically significant difference between A-PRF+ or L-PRF+ groups (p value = 0.307).Conclusion:A-PRF and L-PRF are both effective in the adhesion of fibroblasts cells to collagen membranes, although there is no difference between A-PRF and L-PRF in the adhesion of fibroblast cells to collagen membranes