• Home
  • Search Results
  • Evaluation of a commercial primer for bonding of zirconia to two different resin composite cements.

Evaluation of a commercial primer for bonding of zirconia to two different resin composite cements.

The journal of adhesive dentistry (2014-04-01)
Chen Chen, Haifeng Xie, Xin Song, Michael Francis Burrow, Gang Chen, Feimin Zhang
ABSTRACT

To evaluate the effects of a commercial zirconia primer (Choice or RelyX Unicem) on shear bond strength (SBS) of two different resin composite cements - Choice (a conventional bis-GMA-based resin cement) and RelyX Unicem (self-adhesive resin cement) - to zirconia. Zirconia blocks were manufactured and randomly divided into 5 main groups (n = 20) that received surface treatments and cements as follows: no surface treatment, Choice and RelyX Unicem (groups C and U, resp.); tribochemical silica coating followed by silanization, Choice (group SSC); application of a zirconia primer, Choice and RelyX Unicem (groups ZC and ZU, resp.). Light-curing composite resin cylinders were prepared and bonded on the prepared zirconia blocks using the two different resin cements. Half of the specimens in each group were stored in water for 24 h, and half were aged by 50 days of water storage followed by thermocycling (12,000 cycles between 5°C and 55°C). Thereafter, all of them were submitted to the SBS test. Fourier transmission infrared (FT-IR) spectrum analysis and gas mass spectrometry (MS) analysis were adopted for characterization of the zirconia primer. Statistical analysis of the SBS test showed that group C presented the lowest SBS values and group SSC the highest (p < 0.01). Artificial aging exerted no influence on the SBS of groups U, SSC, ZC, or ZU. FT-IR analysis suggested that benzene rings and carboxylic groups exist in the zirconia primer. MS analysis detected that 2-hydroxyethyl methacrylate, triethylamine, ethyl-4-dimethylaminobenzoate, ethanol, and water are contained in the primer. The zirconia primer and self-adhesive resin cement increased the SBS of zirconia.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Triethylamine, ≥99.5%
Sigma-Aldrich
Triethylamine, ≥99%
Sigma-Aldrich
Acrylic acid, anhydrous, contains 200 ppm MEHQ as inhibitor, 99%
Sigma-Aldrich
3-(Trimethoxysilyl)propyl methacrylate, 98%
Sigma-Aldrich
Triethylamine, puriss. p.a., ≥99.5% (GC)
Sigma-Aldrich
Triethylamine, BioUltra, ≥99.5% (GC)
Sigma-Aldrich
Sodium acrylate, 97%
Sigma-Aldrich
3-(Trimethoxysilyl)propyl methacrylate, ≥97%
Sigma-Aldrich
Triethylamine hydrochloride, ≥99.0% (AT)
Sigma-Aldrich
Isobutyric acid, 99%
Sigma-Aldrich
Ethyl 4-(dimethylamino)benzoate, ≥99%
Sigma-Aldrich
Zirconium, powder, −100 mesh
Supelco
Triethylamine, analytical standard
Sigma-Aldrich
Triethylamine, for amino acid analysis, ≥99.5% (GC)
Sigma-Aldrich
Zinc acrylate, 98%
Sigma-Aldrich
Isobutyric acid, puriss. p.a., ≥99.5%
Sigma-Aldrich
Isobutyric acid, ≥99%, FCC, FG
Sigma-Aldrich
Triethylamine, for protein sequence analysis, ampule, ≥99.5% (GC)
Sigma-Aldrich
Triethylamine, ≥99.5%
Supelco
Isobutyric acid, analytical standard
Supelco
Ethyl 4-(dimethylamino)benzoate, Standard for quantitative NMR, TraceCERT®
Sigma-Aldrich
Zirconium, foil, thickness 0.1 mm, 99.98% trace metals basis
Sigma-Aldrich
Isobutyric acid, natural, ≥99%, FCC, FG
Sigma-Aldrich
Yttrium, powder, −40 mesh, 99.5% trace rare earth metals basis
Sigma-Aldrich
Yttrium, chips, 99.9% trace rare earth metals basis
Sigma-Aldrich
Zirconium, sponge, ≥99% trace metals basis
Sigma-Aldrich
Zirconium, rod, diam. 6.35 mm, ≥99% trace metals basis
Yttrium, foil, not light tested, 25x25mm, thickness 0.005mm, as rolled, 99%
Zirconium, foil, light tested, 25x25mm, thickness 0.02mm, 99.2%
Zirconium, rod, 200mm, diameter 3.0mm, centerless ground, 99.2%