This study aims to evaluate implant stability and Width bone after placement of immediate implant and Xenograft mixed with Hyaluronic acid or with Platelet-Rich Fibrin (PRF) at posterior mandible region

Inclusion Criteria:

• • Age ≥ 18 years.

  • Both sexes.
  • Cooperative and likely to maintain good dental health.
  • Recent extraction multi roots.
  • There is a bone between (2 or 3) mm at lest from the apex of the root.

Exclusion Criteria:

• • Patients who had undergone previous extraction of all badly decayed teeth .

  • Implant placement in both healed bone and at the extraction sites in the same procedure.
  • Presence of any local or systemic factors that might contraindicate oral surgery.
  • Poor oral hygiene.
  • Conditions that complicate wound healing such as uncontrolled diabetes, smoking (10 cigarettes a day), pregnancy, a history of drug or alcohol abuse, and an inability or unwillingness to return for follow-ups after occlusal loading.