Pilot evaluation of resin composite cement adhesion to zirconia using a novel silane system (original) (raw)
Related papers
Evaluation of Resin Adhesion to Zirconia Ceramic Using Some Organosilanes.
d e n t a l m a t e r i a l s 2 2 ( 2 0 0 6 ) 824-831 a v a i l a b l e a t w w w . s c i e n c e d i r e c t . c o m j o u r n a l h o m e p a g e : w w w . i n t l . e l s e v i e r h e a l t h . c o m / j o u r n a l s / d e m a a b s t r a c t Objectives. This study evaluated and compared the effect of three trialkoxysilane coupling agents on the bond strength of a Bis-GMA-based unfilled resin and a dimethacrylate-based resin composite luting cement to a zirconia ceramics (Procera ® AllZircon, Nobel Biocare, Göteborg, Sweden).
This study evaluated the adhesion of resin cements to zirconia with different primers/silane coupling agents using two test methods with and without aging. Zirconia discs (Cercon) (N = 900, n = 15 per group) were ground finished to 2000 grit silicone carbide and randomly divided into seven groups: (a) C: No treatment (Control), (b) SG: Signum, (c) CL: Clearfil Ceramic Primer, (d) AP: Alloy Primer, (e) Monobond Plus, (f ) ES-R: ESPE-Sil after Rocatec and (g) ES-C: ESPE-Sil after CoJet. Methacrylate (Variolink II-VL) and MDP based (Panavia F2.0-PN) dual-polymerized and self-adhesive resin cements (RelyX Unicem-RX) were adhered and polymerized accordingly. The specimens were further randomly divided into two groups to be tested after (a) 24-h dry storage at 37 °C and (b) thermocycling (×5000, 5-55 °C). Macroshear (MSB) and macrotensile bond tests (MTB) were conducted in an universal testing machine (crosshead speed: 1 mm/ min) and failure types were analyzed after debonding. Data were analyzed using Univariate analysis and Tukey's tests (α = 0.05). Twoparameter Weibull modulus, scale (m) and shape (0) were calculated. While primer/silane (p < 0.001), cement type (p < 0.001) and aging (p < 0.001) significantly affected the bond results, test method did not show significant difference (p = 0.237). In MSB test, Weilbul moduli were more favorable for MP-VL (4.2) and AP-PN (6) combinations and after aging for MP-VL (4.2) and AP-PN (5.66). In MTB test, after aging, Weilbul moduli were more favorable for AP-PN (5.41). Bond strength results mostly decreased with SG (24-92%) after aging. Cohesive failures in the cement were more frequent with PN (252) compared to VL (83).
Thermocycling Effects on Resin Bond to Silicatized and Silanized Zirconia
Journal of Adhesion Science and Technology, 2009
Various techniques have been introduced to create a durable resin-composite bond to sintered zirconia (Y-TZP). Shear bond strength values achieved through tribochemical treatment have been studied in numerous studies, but less is reported about long-term durability. The objective was to evaluate the effects of thermocycling and silane on shear bond strength of composite luting cement to silicatized Y-TZP. Two groups of Y-TZP (Procera Zirconia, Nobel Biocare), both consisting of 40 specimens were prepared. The specimen surfaces were air particle abraded by silica-coated aluminum trioxide particles (particle size 110 µm, duration 15 s, air pressure 300 kPa, nozzle-distance 10 mm). The silica-coated surfaces in group ZA were silanized with acrylate-functional silane (Experimental laboratory-made acrylate silane, Toray Dow Corning Silicone) and in the other group ZM with pre-activated methacrylate silane (ESPE Sil, 3M ESPE). The surfaces were coated with adhesive-system (Scotchbond 1, 3M ESPE) and photo-polymerized for 10 s. Resin-composite luting cement (RelyX ARC, 3M ESPE) stubs were added onto substrates and photo-polymerized for 40 s. The test specimens were thermocycled for 0, 1000, 3000, 8000 or 15000 times (temperature 5-55 °C, immersion time 20 s). The shear bond strengths of luting cement to ceramics were measured with a cross-head speed of 1.0 mm/min. ANOVA was used as statistical analysis. ANOVA revealed that both silane and thermocycling affected significantly (p < 0.001) on shear bond strength. Short term hydrolytic stability of acrylate silane was superior. The conclusion: estimation of bonding requires extended thermocycling.
Shear bond strength between resin and zirconia with two different silane blends
Acta Odontologica Scandinavica, 2012
Objective. To study in vitro the effect of two cross-linking silanes, bis-1,2-(triethoxysilyl)ethane and bis [3-(trimethoxysilyl) propyl]amine, blended with an organofunctional silane coupling agent, (3-acryloxypropyl)trimethoxysilane, on the shear bond strength between resin-composite cement and silicatized zirconia after dry storage and thermocycling. Materials and methods. Six tested groups of 90 samples of yttria stabilized zirconia were used for sample preparation. The surfaces of the zirconia were silica-coated. 3M ESPE Sil silane was used as a control. Solutions of (3-acryloxypropyl)trimethoxysilane with cross-linking silanes bis-1,2-(triethoxysilyl)ethane and bis[3-(trimethoxysilyl)propyl]amine were applied onto the surface of silicatized zirconia. 3M ESPE RelyX resin-composite cement was bonded onto the silicatized and silanized zirconia surface and light-cured. Three groups were tested under dry condition and the other three groups were tested for thermocycling. The shear bond strength was measured using a materials testing instrument. Group mean shear bond strengths were analysed by ANOVA at a significant level of p < 0.05. The zirconia surface composition was analysed by X-ray Photoelectron Spectroscopy. Results. The highest shear bond strength was 11.8 ± 3.5 MPa for (3-acryloxypropyl)trimethoxysilane blended with bis-1,2-(triethoxysilyl)ethane (dry storage). There was a significant difference between mean shear bond strength values for (3-acryloxypropyl) trimethoxysilane blended with two cross-linking silanes, bis-1,2-(triethoxysilyl)ethane and bis [3-(trimethoxysilyl)propyl]amine, after thermocycling (p < 3.9 Â 10 À8 ). Various surface treatments of zirconia influenced the surface roughness (p < 4.6 Â 10 À6 ). The chemical composition analysis showed there was an increase in silicon and oxygen content after sandblasting. Conclusions. The results suggest that the combination of functional (3-acryloxypropyl)trimethoxysilane with cross-linking bis [3-(trimethoxysilyl)propyl]amine showed superior hydrolytic stability than with bis-1,2-(triethoxysilyl)ethane.
Dental Science Updates
Aim: to evaluate the shear bond strength of zirconia bonded with two self etch adhesive resin cements PANAVIA F 2.0 and BISTITE ΠDC using two surface treatment techniques: sand blasting and silica coating using Cojet system. Materials and Methods: Twenty rectangular samples with dimensions (14.5×13×3.6mm) and twenty samples with dimensions (7.2×6×3.6mm) were cut from three zirconia ceramic blocks. Sandblasting was done using air blasting machine with 110 µm AL 2 O 3 particles and Silica coating surface treatment was done using Cojet system with 30 µm SiO 2 particles. Half of the small sandblasted zirconia samples were cemented to half the sand blasted large samples using PANAVIA F 2.0 adhesive resin cement and the rest were cemented using BISTITE ΠDC adhesive resin cement. Also, half of the small silica coated zirconia samples were cemented to half the silica coated large samples using both cements. Thermocycling were done for 5000 thermal cycles. The shear bond strength was tested using a computerized universal testing machine. Results: Zirconia specimens cemented with PANAVIA F 2.0 showed higher shear bond strength than specimens cemented with BISTITE ΠDC and the zirconia surfaces treated with silica coating and sand blasting surface treatments. Conclusion: PANAVIA F 2.0 resin cement and silica coating surface treatment could be the best cement and surface treatment for zirconia and sand blasting could be a promising alternative surface treatment.
Dental Materials, 2011
Objective. To evaluate the effect of five experimental silane monomer primers in vitro on the shear bond strength of a phosphate ester resin-composite cement bonded to silicatized zirconia framework. Methods. A total of 144 planar zirconia (Procera AllZircon) specimens were subjected to tribochemical silica-treatment, randomly divided into 12 sub-groups (n=12), and silanized with 1.0% (v/v) activated solutions of 3acryloxypropyltrimethoxysilane, 3 glycidoxypropyltrimethoxysilane, 3methacryloxypropyltrimethoxysilane, styrylethyltrimethoxysilane, and 3isocyanatopropyltriethoxysilane, which had been prepared in 95% ethanol (pH 4.5).
Purpose: To evaluate the influence of airborne particle abrasion, Piranha acid and hot acid etching on bond strength of zirconia with self-adhesive resin cements after aging. Also, the effect of Silano-Pen treatment on the bond strength of zirconia to resin cements. Materials and Methods: Thirty-six zirconia blocks were cut, sintered and divided into three groups (n=12); Airborne particle abrasion, Piranha acid, and hot acid etching were then treated with Silano-Pen. Each zirconia block was bonded to its corresponding composite block utilizing either Panavia SA, TheraCem or Panavia F2.0. 360 micro-tensile test bars were obtained and half of them were subjected to 10000 thermal aging cycles. Each microtensile test bar was subjected to microtensile force until debonding. Scanning Electron Microscopic evaluation was performed. Results: There was a significant difference between the surface treatments. Hot acid showed the highest mean bond strength and the lowest was Piranha acid. Panavia SA significantly improved the bond strength compared to TheraCem and Panavia F2.0. The interaction between cement and Silano-Pen was non-significant (p=.067). Under SEM analysis, hot acid treatments showed homogenous granular texture with wide distribution of porous network. Conclusions: Pre-treatment, resin cement, and aging influences the effectiveness of bonding of zirconia. Silano-Pen after hot acid improved the bonding of zirconia.
2010
In this paper we discuss and interpret the results of shear bond strengths achieved after the use of two silane coupling agents with isocyanato functionality, viz. 3-isocyanatopropyltrimethoxysilane and 3isocyanatopropyltriethoxysilane. The silanes were used alone and also blended with a non-functional crosslinking silane on silicatized zirconia before light-curing of resin stubs on the surface, as described elsewhere in the first part of our study (see "Part I: Experimental"). A series of reaction mechanisms and conceptual diagrams are also presented. The reaction mechanisms illustrating the effect of adding a cross-linking silane into a silane blend, the silane hydrolysis and the behavior of two organofunctional groups (isocyanate and alkene) of silanes upon reaction with Rely X Unicem Aplicap resin-composite cement are discussed in detail.
Enhanced resin zirconia adhesion with carbon nanotubes-infused silanes: A pilot study
Journal of Adhesion, 2018
This laboratory study aimed to enhance the adhesion strength of resin cement to zirconia by infusing carbon nanotubes (CNTs) in experimental silane primers. Eighteen ZrO 2 blanks were pretreated with Rocatec™ Soft, and divided into six groups: Group 1: Monobond ® S silane (control); Group 2: 0.5 wt.% single-walled CNTs blended Monobond ® S; Group 3: 0.5 wt.% multiple-walled CNTs blended Monobond ® S; Group 4: a blend of 1.0 vol.% 3-acryloxypropyltrimethoxysilane (ACPS) + 0.5 vol.% bis-1,2-(triethoxysilyl)ethane (BTSE); Group 5: 0.5 wt.% single-walled CNTs blended in 1.0 vol.% ACPS + 0.5 vol.% BTSE; and Group 6: 0.5 wt.% multiple-walled CNTs blended in 1.0 vol.% ACPS + 0.5 vol.% BTSE. Next, resin composite stubs were prepared on treated ZrO 2 surfaces. The specimens were stored in distilled water at 37°C ± 2°C for 2 months and 4 months. According to analysis of variance (ANOVA) and Tukey's post hoc test (n = 10, α = 0.05), the highest enclosed mold shear bond strength (EM-SBS) value was observed in Group 5 (20.5 MPa ± 8.0 MPa) at the end of 4 months. Experimental silane primer containing a blend of 1.0 vol.% ACPS and 0.5 vol.% BTSE with infused single-walled CNTs might significantly enhance resin cement adhesion to silica-coated ZrO 2 .