The aim of this study was to compare the passive fit of full arch superstructure using conventional impression versus digital impression using extraoral scanner. Methodology: Six implants were installed in the epoxy edentulous cast using a trial denture base setup of teeth. All implants were installed using a dental surveyor to ensure parallelism of all 6 implants, installed in central, canine, and second premolar areas bilaterally. Two frameworks were fabricated; in group 1 casted conventional framework using a conventional open tray impression, while in group 2 milled framework was fabricated using a digital impression, and in each group, 5 frameworks were fabricated. In Group 1: Five Splinted open tray conventional Impressions were carried out for all of the six installed implants; each impression was poured in a conventional manner to fabricate a master cast. This master cast was used for the fabrication of a casted superstructure framework. In Group 2: Scan bodies were screwed to the installed implants, and five digital impressions using an extra-oral scanner will be carried out. The STL files of the five impressions were used to fabricate 5 milled frameworks using Exocad software. The passive fit of all frameworks fabricated in the two groups was evaluated using the Sheffield test (one screw test) and was assessed as passive or non-passive, and gap distance was measured using a stereomicroscope when all implants screws were fully tightened, and when only the most distal implant was tightened. Results: All frameworks were considered passive using the one-screw test. There was a statistical difference in mean gap value between milled and casted groups when all implants were fully tightened, while when only the most distant screw was tightened, casted frameworks showed less passive fit than the milled group. The casted frameworks show higher significant gap distance (61.74 microns) when all implants are fully tightened, and (146.30 microns) when only implant A is fully tightened. So, the milled group is more passive than the casted one. Conclusions: When evaluating the passive fit of implant-supported full-arch maxillary framework fabricated using conventional and digital techniques, the milled group is more passive than the casted one when all implants are fully tightened and when implant (A) is fully tightened.