Comparison of Zirconia to Dentin Bonding Using Resin-Based Luting Cements and Resin-Modified Glass-Ionomer Cement

Abstract

Introduction: The aim of this study was to compare the shear bond strengths of zirconia to dentin using two resin-based luting cements and a resin-modified glass-ionomer cement (RMGIC). Materials and Methods: Thirty six zirconia blocks of 2 mm × 3 mm × 5 mm were milled and luted to the exposed dentin surfaces and grouped into three according to the cement used for luting: Group I – luted with Panavia F2.0, Group II – luted with RelyX U200, and Group III – luted with FujiCEM. After thermocycling, specimens were subjected to shear bond testing in an Universal Testing Machine (UTM). Data analysis using Kruskal–Wallis ANOVA and post hoc Mann–Whitney U -test with P < 0.05 was done. Results: Mean bond strengths were of the order Panavia F2.0 (5.99 MPa)>RelyX U200 (4.79MPa)>FujiCEM (1.59 MPa). Maximum failures were at the zirconia-cement interface and were adhesive in nature. Conclusions: It can be concluded with the study that there is a better bonding of zirconia to dentin with resin-based luting cements than a RMGIC. The single-step resin-luting cement RelyX U200 produced comparable bond strength to that of a multistep Panavia F2.0.

Clinical outcomes of tooth-supported monolithic zirconia vs. porcelain-veneered zirconia fixed dental prosthesis, with an additional focus on the cement type: a systematic review and meta-analysis

“…When it comes to the most commonly used cements, decementation was more commonly seen among prostheses cemented with adhesive resin than with glass ionomer in the MZ group. This goes against the results of an in vitro study, in which it was observed that adhesive resin cements present higher bond strength than glass ionomer cements in the bonding between zirconia and dentin [ 103 ]. However, a study observed no difference in the clinical performance for the cementation of zirconia copings between these two types of cement after 48 months [ 104 ].…”

“…Moreover, similar clinical outcomes for the cementation of zirconia restorations between these cements were observed in a clinical study [ 112 ].. However, there is no clear consensus on the subject, as other in vitro studies showed that resin-modified glass ionomer cements present lower mean bond strengths between zirconia and dentin than resin-based luting cements [ 103 , 113 ]. The results were not favorable for the conventional glass ionomer cement though.…”

Evaluation of short- and long-term bond strength of zirconia after different surface treatments

“…Consequently, achieving zirconia restorations with high bond strength can be particularly challenging owing to their weaker bond interface with tooth substrates. However, studies have shown improvements in bond strength through surface modifications of zirconia when adhesive cements are employed [10,32].…”

“…Its mechanical properties are comparable to those of metals, but the naturality of color increases its election [9]. Y-TZP crowns can be cemented by conventional or resin cements, and the latter reports the highest bond strength values to teeth structures [8,10]; however, the authors reported a high level of debonding of Y-TZP crowns [11][12][13][14].…”