Complete Digital Workflow for Construction of Full Arch Implant Supported Screw Retained Restoration

Complete Digital Workflow for Construction of Full Arch Implant Supported Screw Retained Restoration :occlusal Accuracy of Different Techniques Used to Record Maxillo-mandibular Relationship(Crossover Study)

This study will compare the occlusal accuracy of different techniques for recording maxillomandibular relationships in a Complete digital workflow to construct full arch implant-supported screw-retained restoration.

Inclusion Criteria:

• • Inclusion criteria: i- complete maxillary and mandibular edentulous arches ii- residual alveolar ridges covered with healthy firmly attached mucosa. iii- Angel's class I maxillo-mandibular relationship and iv- Adequate bone height and width for placement of standard diameter implants.

Exclusion Criteria:

• History of drug administration that interfere with bone quality ii- Surgical contraindication (patients under anticoagulant ,immunosuppressive drugs, chemotherapy and irradiation therapy) iv- tempromandibular or myoneurological disorders.