Shear bond strength of porcelain laminate veneers to enamel, dentine and enamel–dentine complex bonded with different adhesive luting systems

2013 ◽  
Vol 41 (2) ◽  
pp. 97-105 ◽  
Author(s):  
Elif Öztürk ◽  
Şükran Bolay ◽  
Reinhard Hickel ◽  
Nicoleta Ilie
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Adhesive Luting ◽  
Laminate Veneers

scholarly journals Effect of Provisional Cements on Shear Bond Strength of Porcelain Laminate Veneers

2011 ◽  
Vol 05 (04) ◽  
pp. 373-379 ◽  
Author(s):  
Subutay Han Altintas ◽  
Onjen Tak ◽  
Asli Secilmis ◽  
Aslihan Usumez
Keyword(s):  
Bond Strength ◽  
Calcium Hydroxide ◽  
Shear Bond Strength ◽  
Testing Machine ◽  
Acrylic Resin ◽  
Resin Cement ◽  
Control Group ◽  
Molar Teeth ◽  
Laminate Veneers ◽  
Selection Of

ABSTRACTObjectives: The purpose of this study was to evaluate the effect of three provisional cements and two cleaning techniques on the final bond strength of porcelain laminate veneers. Methods: The occlusal third of the crowns of forty molar teeth were sectioned and embedded in autopolymerizing acrylic resin. Dentin surfaces were polished and specimens were randomly divided into four groups (n=10). Provisional restorations were fabricated and two provisional restorations were cemented onto each tooth. Restorations were fixed with one of three different provisional cements: eugenol-free provisional cement (Cavex), calcium hydroxide (Dycal), and light-cured provisional cement (Tempond Clear). Provisional restorations were removed with either a dental explorer and air-water spray, or a cleaning bur (Opticlean). In the control group, provisional restorations were not used on the surfaces of specimens. IPS Empress 2 ceramic discs were luted with a dual-cured resin cement (Panavia F). Shear bond strength was measured using a universal testing machine. Data were statistically analyzed by ANOVA, Tukey’s HSD and Dunnett tests. Surfaces were examined by scanning electronic microscopy. Results: Significant differences were found between the control group and both the light-cured provisional cement groups and the eugenol-free provisional cement-cleaning bur group (P<.05). Groups that had received light-cured provisional cement showed the lowest bond strength values. Conclusions: Selection of the provisional cement is an important factor in the ultimate bond strength of the final restoration. Calcium hydroxide provisional cement and cleaning with a dental explorer are advisable. (Eur J Dent 2011;5:373-379)

scholarly journals Shear bond strength of ceramic laminate veneers to finishing surfaces with different percentages of preserved enamel under a digital guided method

2022 ◽  
Vol 22 (1) ◽  
Author(s):  
Jiakang Zhu ◽  
Jing Gao ◽  
Luming Jia ◽  
Xin Tan ◽  
Chenyang Xie ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Three Dimensional ◽  
In Vitro Study ◽  
Significant Difference ◽  
Dimensional Models ◽  
Three Dimensional Models ◽  
Laminate Veneers ◽  
Bonding Surface

Abstract Background The purpose of this in vitro study was to evaluate the effect of the percentages of preserved enamel on ceramic laminate veneers’ (CLVs) shear bond strength (SBS). Methods Seventy extracted human maxillary central incisors were scanned and reconstructed into three-dimensional models. The extracted teeth were then embedded and randomly divided into seven groups (n = 10 per group). Based on digital analyses of the three-dimensional models, guided tooth preparation and bonding procedures were performed individually to form seven different percentages (100%, 80%, 60% 50%, 40%, 20% and 0%) of remaining enamel thickness on the bonding surface. Finally, the SBS test was performed, and the data were statistically analysed by one-way ANOVA with LSD post hoc test (α = 0.05). Results The complete enamel surface exhibited the highest SBS (19.93 ± 4.55 MPa), followed by 80% enamel (19.03 ± 3.66 MPa), 60% enamel (18.44 ± 3.65 MPa), 50% enamel (18.18 ± 3.41 MPa), 40% enamel (17.83 ± 3.01 MPa) and 20% enamel (11.32 ± 3.42 MPa) group. The lowest SBS (9.63 ± 3.46 MPa) was detected in 0% enamel group. No significant difference was observed among the 40–100% enamel groups, while the 20% or 0% enamel group demonstrated a significantly lower mean SBS than the 40% enamel group (p < 0.05). Conclusion The SBS value of CLVs bonded to 100% enamel on the finishing surfaces (nearly 20 MPa) was twice that which bonded to 0% enamel (nearly 10 MPa). Bonding to 100% enamel is the most reliable treatment. When dentin exposure is inevitable, enamel should be preserved as much as possible to maintain good bonding. In addition, 40% of preserved enamel on the bonding surface was the minimal acceptable value to fulfil the requirements of good bonding strength.

Resin Bond Strength to Alumina Coated Ce-TZP/Al2O3 Dental Ceramic

2011 ◽  
Vol 493-494 ◽  
pp. 632-636
Author(s):  
Tomaz Kosmač ◽  
A. Kocjan ◽  
M. Golobicˇ ◽  
P. Jevnikar
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Sem Analysis ◽  
Alumina Coating ◽  
Dental Ceramic ◽  
Adhesive Luting ◽  
Luting Cement ◽  
Before And After ◽  
Hydrolysis Of ◽  
Resin Penetration

The aim of this study was to functionalize the surface of Ce-TZP/Al2O3 dental ceramic with a nano-structured alumina coating to improve resin bonding. A total of 40 densely sintered disc-shaped specimens (15.5 + 0.03 mm in diameter and 2.6 + 0.03 mm thick) were produced from commercially available NANOZIR blocks and randomly divided into 2 groups of 20. Half of the discs in each group received an alumina coating that was fabricated by exploiting the hydrolysis of aluminum nitride (AlN) powder. The coating was characterized using scanning electron microscopy (SEM). The shear bond strength of the self-adhesive luting cement G-cem was then studied for the coated and uncoated surfaces before and after thermocycling (TC). The SEM analysis revealed that the application of an alumina coating to Ce-TZP/Al2O3 ceramics created a highly retentive surface for resin penetration. The resin bond strength to the coated groups was significantly higher than to the uncoated groups, both before and after TC (p ≤ 0,05).

Shear Strength of the Composite Bond to Etched Porcelain

1987 ◽  
Vol 66 (9) ◽  
pp. 1460-1465 ◽  
Author(s):  
I. Stangel ◽  
D. Nathanson ◽  
C.S. Hsu
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Composite Resin ◽  
Surface Condition ◽  
Surface Configuration ◽  
Significant Difference ◽  
Laminate Veneers ◽  
Unfilled Resin ◽  
Scanning Electron ◽  
Dentin Adhesive

The shear bond strength of composite resin to porcelain was investigated to optimize variables for bonding porcelain laminate veneers. Scanning electron microscopy was initially used to examine the surface configuration of porcelain prepared under various conditions. A factorial experiment was undertaken to determine the effects of three different bonding methods on both etched and non-etched porcelain. Composite resin was bonded to the porcelain groups using (a) unfilled resin, (b) silane, and (c) silane with dentin adhesive. The results indicated a significant difference in shear bond strength for the three bonding groups, depending on the porcelain surface condition. For the unetched samples, significant differences in bond strength were obtained for all three bonding conditions. However, for the etched group, there were no differences between the silane and silane-with-dentin-adhesive groups. Porcelain etching significantly increased bond strength across all three bonding methods and was the main contributor to the obtained values.

Bond Strength of Different Adhesive Luting Materials to Zirconia Ceramics

2012 ◽  
Vol 512-515 ◽  
pp. 447-450
Author(s):  
Qi Liu ◽  
Long Quan Shao ◽  
Chen Hu ◽  
Yuan Fu Yi ◽  
Bin Deng ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Control Group ◽  
Distilled Water ◽  
Glass Ionomer ◽  
Zirconia Ceramics ◽  
Anova Analysis ◽  
Adhesive Luting ◽  
Group 2 ◽  
Adhesive Materials

To investigate the bond strength of different adhesive luting materials bond to zirconia ceramics. 40 (30mm×5mm×5mm) Cercon Smart Ceramics samples were divided into groups: (1) glass-ionomer bonded (control group), (2) Clearfil™ Repair bonded, (3) Panavia F bonded, (4) Variolink N bonded. Tensile bond strength and shear bond strength were evaluated after 24h storage at 37°C in distilled water. Each group had 10 samples for different test. Data were evaluated using ANOVA analysis (α=0.05). The experiment groups are statistically significant differences with control group (P<0.05). The shear bond strength of the Glass ionomer FX Ι, the Clearfil™ Repair, Panavia F and Variolink N groups were 14.23±4.48 MPa, 21.95±1.32 MPa, 31.16±1.50 MPa and 43.54±1.97 MPa, separately. Comparisons among groups were significant differences (P<0.001). Variolink N bonded ceramics achieved highest tensile and shear bond strength. Different adhesive materials significantly influence the bond strength of zirconia ceramics.

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