Many of studies have been performed to improve osseointegration and bone density around implants by modifying the implant by adding bone graft or substitute material that increase success of implant. The aim of this study is to evaluate clinically and radiographically the efficacy of injectable bone graft versus ozonated olive oil gel to promote bone formation and improve outcomes in immediate implant cases. 16 immediate implants will be placed in mandibular premolar region the study will be devided equally and randomlly into two groups , Group 1: it will be 8 immediate implants represent the control group were the implants will be placed with injectable bone graft , Group 2: will be 8 immediate implant represent the study group were the implants will be placed with ozonated olive oil gel be used as a graft material . The implant stability will be assessed clinically using Ostell , and the bone density will be assed radiographically .