Abad Coronel, Cristian GustavoCarrera Calahorrano, Elena AlejandraMena Cordova, Nancy CeciliaFajardo Seminario, Jorge IsaacAliaga Sancho, Jenny Paulina2022-02-112022-02-1120211996-1944https://www.scopus.com/record/display.uri?eid=2-s2.0-85121390277&doi=10.3390%2fma14247791&origin=inward&txGid=5aedee4fe8587966f5354412aa3cb481The aim of this study was to evaluate and compare the resistance to fracture of interim restorations obtained through additive techniques (3D impressions) and subtractive techniques (milling) using a computer-aided design and manufacture (CAD/CAM) system of a three-unit fixed dental prosthesis (FDP) to ascertain its clinical importance. (1) Materials and methods: In total, 40 samples were manufactured and divided into two groups (n = 20) using: (1) light-curing micro hybrid resin for temporary crowns and bridges (PriZma 3D Bio Prov, MarketechLabs, São Paulo, Brazil) for the rapid prototyping group (RP) and (2) a polymethylmethacrylate (PMMA) CAD/CAM disc (Vipiblock Trilux, VIPI, São Paulo, Brazil) for the computer-assisted milling (CC). The resistance to fracture was determined with a universal testing machine. (2) Results: The strength and the standard deviation for the computer-assisted milling group were higher (1663.57 ± 130.25 N) than the rapid prototyping (RP) group, which had lower values of (1437.74 ± 73.41 N). (3) Conclusions: The provisional restorations from the computer-assisted milling group showed a greater resistance to fracture than the provisional restorations obtained from the rapid prototyping group.es-ESCAD CAMCAD CAM materialsFracture resistanceInterim restorationsRapid prototypingARTÍCULO10.3390/ma14247791