Shear bond strength of glass ionomer and resin‐based cements to different types of zirconia

Abstract

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.

The resin bond to high‐translucent zirconia—A systematic review

“…The search revealed 18 studies on bonding to 5Y-TZP zirconia. 86,95,96,[98][99][100][101][102][103][104][105][106][107][108][109][110][111] The three types of surface pretreatment methods were applied: mechanical, through alumina and glass-bead APA; chemical-mechanical, through TBS, lithium disilicate glass-ceramic coat, and plasma treatment; and chemical, through piranha acid etch solution and hot chemical etching (Table 2). Alumina APA particle sizes ranged between 40-110 μm at 1-6 bar pressure.…”

“…127,128 Outcomes of different types of functional monomer-based primers and resin cements to APA 5Y-TZP are inconsistent (Table 2). De Angelis and coworkers 108 found that MDP monomer-based primers and resin cements performed significantly better than phosphate monomerbased resin cements. Failure modes obtained with a phosphate monomer-based resin cement (RelyX Unicem 2 Clicker, 3 M ESPE, Seefeld, Germany) were mainly adhesive (Table 2).…”

“…Most of the studies applied functional monomer-based primers and resin cements. All specimens in the identified studies underwent simulated aging, in terms of water storage, 86,95,103,105,107,110 thermocycling, 97,111 thermocycling combined with water storage, 96,98,99,101,102,104,106,108,109 or thermocycling combined with water storage and mechanical load cycling. 100 Tensile, micro-tensile, shear, and pull-out tests were applied to test and measure bond strength.…”

The Importance of MDP Priming, Silica Blasting or Glazing on the Retention Force of Y-TZP Copings to Varying Geometry Tooth Abutments

“…The MDP acts on the hydroxyl groups of the zirconia oxide surface layer, interacting at an interfacial level. Thus, each phosphate group joins on to one or three zirconium atoms, creating phosphate zirconium, which is a more thermally and hydrolytically stable zirconium salt, which may justify the better adhesive behavior of this surface treatment [24].…”

Do Chemical-Based Bonding Techniques Affect the Bond Strength Stability to Cubic Zirconia?

“…In fact, universal adhesives present functional monomers in their composition to promote adhesion to surfaces based on metallic oxides, such as zirconia and other metal alloys. Recent literature showed different and non-standardized aging methods to test the stability of the bonding between 10-MDP and zirconia, which allow a great variability in the obtained results [ 22 , 23 ]. Thus, the aim of this in vitro study was to evaluate the effectiveness of different chemical-based adhesive techniques in promoting bond strength between zirconia and luting cement.…”