Scan Time and Prosthetic Complications of Intraoral Scanning Versus Intraoral Photogrammetry for Full-Arch Titanium Framework With Zirconia Overlay Implant Screw-Retained Prostheses

Inclusion Criteria: * Patients requiring maxillary and/or mandibular full arch screw-retained implant-supported prosthesis. * Number of implants placed per arch ranging from 4-6 implants per arch. * Completely edentulous patients with sufficient inter-arch space to receive fixed prosthesis (Crown height space 9-15 mm per arch). * Adequate zone of keratinized mucosa (\> 2mm width). * Both genders. * Acceptable oral hygiene. * Cooperative patients. * Controlled systemic diseases (Diabetes, hypertension). Exclusion Criteria: * Completely edentulous patients with insufficient inter-arch space to receive fixed prosthesis (Crown height space lesser than 9mm per arch). * Completely edentulous patients with in-adequate zone of keratinized mucosa (\< 2mm). * Un cooperative patients. * Poor oral hygiene. * Uncontrolled systemic diseases (Diabetes, hypertension).