| Abstract [eng] |
Digital technologies have changed clinical dentistry extending diagnostic, treatment, and follow-up possibilities. however, the main problem of digital workflow in prosthodontics is that the accuracy of impressions and final restorations produced from digital impressions is not well investigated. This dissertation was divided into several parts in order to evaluate and compare the accuracy of different intraoral scanners and conventional impressions in partially and fully edentulous cases for implant-supported restorations in vitro and in vivo. Collected and analyzed data provides a broad range of new information about the accuracy of dental implant impressions and restorations. It also helps to understand dimensional deviations occurring in different clinical and laboratory steps. The main objectives of this research project were to evaluate, how angle and distance between implants could affect the accuracy of impressions in partial and in fully edentulous situations. also, quantitative evaluation of the passivity of implant-supported fixed partial dentures in the laboratory and clinical environment allowed evaluating and comparing them in a more comprehensive way. |
