Objective: the present study was performed to evaluate Mineralized Plasmatic Matrix (MPM) as a grafting material around immediate dental implant in mandibular posterior teeth. Subjects and Methods: Eight patients were selected for immediate dental implant in mandibular posterior teeth and use MPM as a grafting material around the implant. After surgery each patient were evaluated clinically at the following interval immediate, one week, two weeks, and three months postoperatively for:: Presence of infection, Edema, Graft exposure and/or loss, Soft tissue dehiscence, Pain, Nerve injury and Implant stability, and radiographically immediate and three months postoperatively interval by CBCT for: Bone density around the dental implant and Horizontal bone loss around the dental implant. Results: All patients hadn't any infection, nerve injury, Graft exposure and /or loss, soft tissue dehiscence and facial edema throughout the study till three months. Osstel at 3 months (81.0±7.68) was higher than immediately (63.40±4.16). Bone density at 3 months (447.0± 28.64) was higher than immediately (243.0±17.18). Patients experienced mild to moderate pain after surgery, at the surgical sites which decrease gradually during four days postoperatively then disappeared completely at the 7 th day. Conclusion: The use of MPM with immediate implant reduces postoperative infection, edema, pain, graft exposure and/or loss and soft tissue dehiscence. Use of MPM with immediate implant enhances the implant stability, improves bone density around it and decrease marginal bone loss around the immediate implant.