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Shear bond strength of glass ionomer and resin‐based cements to different types of zirconia
Author(s) -
De Angelis Francesco,
D'Arcangelo Camillo,
Buonvivere Matteo,
Rondoni Giuseppe Daniele,
Vadini Mirco
Publication year - 2020
Publication title -
journal of esthetic and restorative dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.919
H-Index - 60
eISSN - 1708-8240
pISSN - 1496-4155
DOI - 10.1111/jerd.12638
Subject(s) - materials science , glass ionomer cement , cement , adhesive , composite material , yttria stabilized zirconia , cubic zirconia , cementation (geology) , bond strength , ceramic , layer (electronics)
Objective To investigate the shear bond strength (SBS) of a glass ionomer (GI) cement, an 10‐methacryloyloxy‐decyl dihydrogen phosphate (MDP)‐based adhesive resin cement (MDP‐based AC), an MDP‐based self‐adhesive resin cement (MDP‐based SAC), an MDP‐free self‐adhesive resin cement (MDP‐free SAC), and a resin‐modified GI (RMGI) cement to a 3 mol% yttria‐stabilized (3Y‐TZP) and a 5 mol% yttria partially stabilized zirconia (5Y‐PSZ). Materials and methods Fifty blocks were produced using 3Y‐TZP and 5Y‐PSZ, assigned to subgroups based on the five cements investigated ( n = 10) and luted to cylindrical specimens of the same substrate. Each specimen was loaded in a SBS apparatus to failure. Mean SBS (MPa) values and standard deviations were calculated. Data were analyzed using a two‐way analysis of variance and Tukey tests ( α = .05). Failed specimens were subjected to fractographic analysis. Results MDP‐based AC and MDP‐based SAC cements displayed the highest SBS values with both the substrates; GI cement showed the lowest. RMGI and MDP‐free SAC cements performed better with 3Y‐TZP than with 5Y‐PSZ. Fractographic analysis revealed only adhesive and mixed failures. Conclusions MDP‐based AC and MDP‐based SAC cements are suitable for both 3Y‐TZP and 5Y‐PSZ. MDP‐free SAC and RMGI cements are adequate choices for 3Y‐TZP, but seem less effective with 5Y‐PSZ. Clinical significance MDP‐based SACs appear to be as reliable as MDP‐based ACs for both 3Y‐TZP and 5Y‐PSZ cementation. Specifically, for 5Y‐PSZ cementation, resin‐based MDP‐free SACs do not seem to guarantee predictable results in terms of SBS.