Aim: The aim of this study was to assess the effect of using collagen sponge combined with injectable platelet rich fibrin in post extraction socket. Subjects and Methods: 26 patients selected. All patients had a treatment plan for extraction of non-restorable single rooted maxillary tooth. Group A (control): Extraction socket was left for normal healing (blood clot), just patient presses on the gauze for promoting hemostasis. Group B (study): Extraction socket was filled with combination of collagen sponge and injectable platelet rich fibrin. In the present study, the following measurements were recorded: Width of alveolar ridge. Vertical measurements. Bone density. Bone volume.
 Results: Post-operative Study group showed a higher average width (5.28) of alveolar ridge than control group (3.41). Post-operative; study group showed a high volume (100.7) than control group (48.21). Post-operative; Study group showed a higher bone density (443.0) than control group (192.2). Post-operative; Study group showed a higher bone density GV (633.0) than control group (275.2).Conclusion: The use of collagen sponge with autologous I-PRF in the present study, significantly minimized ridge resorption in all dimensions.