Inclusion Criteria:  Completely edentulous patients with sufficient inter-arch space to receive fixed prosthesis (Crown height space 9-15 mm per arch) Completely edentulous patients with 4 implants in mandible and/ or 6 implants in maxilla sufficient bone volume for implant placement without graft a confirmed by CBCT adequate zone of keratinized mucosa ( > 2mm width) All genders Acceptable oral hygiene Cooperative patients Controlled systemic diseases ( Diabetes, hypertension)  Exclusion Criteria:  Completely edentulous patients with sufficient inter-arch space to receive fixed prosthesis (Crown height space 9-15 mm per arch)  Completely edentulous patients with 4 implants in mandible and/ or 6 implants in maxilla sufficient bone volume for implant placement without graft a confirmed by CBCT adequate zone of keratinized mucosa ( > 2mm width) All genders Acceptable oral hygiene Cooperative patients Controlled systemic diseases ( Diabetes, hypertension)