Products Cited in Publications Worldwide Bond strength and chemical interaction between experimental primers containing 10-MDP and zirconia ceramics

Bond strength and chemical interaction between experimental primers containing 10-MDP and zirconia ceramics

Araújo-Neto, Vitaliano Gomes; Rifane, Tainah Oliveira; André, Carolina Bosso; Zattera, Ana Cristina Andrioli; de Souza Balbinot, Gabriela; Collares, Fabrício Mezzomo; Giannini, Marcelo

DOI: PMID:

Abstract

Objective: To evaluate the effects of experimental primers containing 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP) and/or γ-methacryloxypropyltrimethoxysilane (γ-MPTS) on the adhesion and chemical interaction with zirconia ceramics. Materials & methods: Two ethanol-based experimental primers were prepared: 5 wt% 10-MDP (MDP-E) and 5 wt % 10-MDP + 5 wt% γ-MPTS (MDP-S). A commercial primer (CLE-C, Clearfil Ceramic Primer) was used as control. Three types of zirconia ceramics were used: 3Y-TZP, 4Y-PSZ, and 5Y-PSZ. Experimental and Control primers were applied to zirconia ceramics and the shear bond strength (SBS) to primed zirconia were tested after 24h or after 150 days in water + 12,000 cycles of thermocycling (TC) (n = 8). Primed zirconia surface compositions were analyzed using energy dispersive X-ray spectroscopy (EDX) (n = 3). Surface free energy (SFE) of primed zirconia was determined by contact angle measurement using water or diiodomethane (n = 10). MicroRaman spectroscopy investigated the vibrational peak of 10-MDP bonded to primed zirconia (n = 3). SBS and SFE data were analyzed by three-way or two-way ANOVA, Bonferroni, and post-hoc Tukey test (α = 0.05). Results: CLE-C primer did not differ from the experimental primers at 24 h and after TC. The SBS reduced for all groups after TC. When CLE-C was applied to zirconia ceramics, the highest SFE was obtained for 3Y-TZP one. SFE did not differ among zirconia ceramics when MDP-E primer was used. MDP-E did not differ from other primers or yielded higher SFE, depending on the type of zirconia. EDX indicated similar elemental compositions for the primed zirconia ceramics with CLE-C and MDP-S. Raman spectroscopy revealed chemical interaction only between the primers and 3Y-TZP. Conclusions: In general, CLE-C primer yielded the best SBS results, while MDP-E the SFE ones. Although EDX identified phosphorus chemical element on all primed zirconia surfaces after primer applications, the chemical interaction was observed only between the primers and 3Y-TZP.

Keywords

Silanes ; Ceramics ; Raman spectroscopy ; Dental materials

Purchased from AmBeed

10-(Phosphonooxy)decyl methacrylate

A26946585590-00-795%

10-(Phosphonooxy)decyl methacrylate

12.0/1g

Detail