Effect of Adding Zirconium Oxide Nanoparticles to Printable Implant Overdenture

Inclusion Criteria

• •1\. Patients are healthy, free from any systemic diseases relating to bone resorption such as uncontrolled diabetics or osteoporosis. This will be achieved through medical history and clinical examination by physician.
• •2\. They will have completely edentulous jaws for at least 1 year. 3. They will be of angle's class I maxillo-mandibular relationship and have upper and lower completely edentulous arches.
• •4\. Residual alveolar ridges covered with healthy firm mucosa. 5. All included patients will have sufficient available length and width of mandibular bone to accommodate conventional implant. (At least 5 mm buccolingual width and 12 mm vertical height of bone.