Aim: This study was done to evaluate the crestal bone loss and patient satisfaction of full-arch screw-retained implant prostheses constructed on Multiunit abutments (MUA) versus intraoral cementation on Ti-bases Materials and methods: Twenty-two patients with edentulous mandible were recruited, four axial implants were placed then they divided into 2 groups, in group A (control group): a screw-retained full-arch implant prosthesis with PEEK framework was made using Multiunit abutments as the control group, while in group B (intervention group): Ti-bases were used. Crestal bone loss and patient satisfaction was obtained 6 and 12 months (m) after loading.