Sticky Bone vs Xenograft With Cross-linked Hyaluronic Acid in Socket Preservation

Inclusion Criteria: * Age \>18 years old. * Patient with hopeless maxillary anteriors and premolar with cl ii socket that needs extraction and delayed implant placement. Exclusion Criteria: * Acute abscesses or active infections localized in the proximity of the surgical field. * Presence of heavy metallic artefacts that can distort CBCT scans * Bad oral hygiene and non-compliance. * Systemic diseases interfering with bone healing. * Active and progressive periodontal disease * Smoking, alcoholism and drug abuse * Pregnant and lactating women