Tribst, J. P.M. [UNESP]Dal Piva, A. M.O. [UNESP]Özcan, M.Borges, A. L.S. [UNESP]Bottino, M. A. [UNESP]2019-10-062019-10-062019-05-30The European journal of prosthodontics and restorative dentistry, v. 27, n. 2, p. 76-82, 2019.0965-7452http://hdl.handle.net/11449/189249PURPOSE: This study evaluated the stress distribution in different cement-retained implant-supported prostheses with a hybrid abutment. MATERIALS AND METHODS: Two factors were evaluated: restorative material for the crown and hybrid abutment - zirconia, lithium disilicate and hybrid ceramic, yielding 9 combinations. For finite element analysis, a monolithic crown cemented on a hybrid abutment was modeled and cemented on a titanium base (Ti base). An oblique load (45°, 300 N) was applied to the fossa bottom and system fixation occurred on the bone's base. RESULTS: Each structure was evaluated separately to find the possible weaknesses in geometry and failure criteria. In this context, results demonstrated a significant decrease of maximum principal and von-Mises stresses concentration when crowns with high elastic modulus are cemented onto a hybrid abutment with lower elastic modulus. CONCLUSIONS: Considering this theoretical study for a Morse taper implant, the association of a rigid crown with a more resilient hybrid abutment reduces the tensile stress concentration in the restoration cervical region.76-82engDental CeramicsDental Implant-Abutment DesignDental ImplantsFinite Element AnalysisMaterial TestingArtigo10.1922/EJPRD_01829Tribst07Acesso restrito2-s2.0-85067267334