Assessment of the Accuracy of Surgical Guide Designed From Digital Impression, Dental Model Scanning Using CBCT and Desktop Scanner in Computer Guided Implantology:

Inclusion Criteria: * partially edentulous patient. * Patients with bucco-lingual bone thickness more than 6 mm allowing flapless implant placement. Exclusion Criteria: * Completely edentulous patient or Free end saddle edentulous area. * Patients needing graft or sinus lifting with implant placement. * Patients with thin ridges. * Patients with systemic disease that may affect bone quality. * Patients with poor oral hygiene and active periodontal diseases. * Patient with limited mouth opening