The effect of thermal cycling on the shear bond strength of porcelain/Ti–6Al–4V interfaces

The effect of thermal cycling on the shear bond strength of porcelain/Ti–6Al–4V interfaces

The aim of the study was to evaluate the effect of thermal cycling on the shear bond strength of the porcelain/Ti–6Al–4V interfaces prepared by two different processing routes and metallic surface conditions. Polished and SiO2 particle abraded Ti–6Al–4V alloy and Triceram bonder porcelain were used...

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Bibliographic Details
Published in:Journal of the mechanical behavior of biomedical materials Vol. 44; pp. 156 - 163
Main Authors: Sendão, Isabel A., Alves, Alexandra C., Galo, Rodrigo, Toptan, Fatih, Silva, Filipe S., Ariza, Edith
Format: Journal Article
Language:English
Published: Netherlands Elsevier Ltd 01-04-2015
Subjects:
Dental Porcelain
Hot pressing
Materials Testing
Shear bond strength
Shear Strength
Stress, Mechanical
Surface Properties
Temperature
Thermal cycling
Titanium
Titanium alloy
Titanium alloy
Hot pressing
Thermal cycling
Dental porcelain
Shear bond strength
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Summary:The aim of the study was to evaluate the effect of thermal cycling on the shear bond strength of the porcelain/Ti–6Al–4V interfaces prepared by two different processing routes and metallic surface conditions. Polished and SiO2 particle abraded Ti–6Al–4V alloy and Triceram bonder porcelain were used to produce the interfaces. Porcelain-to-metal specimens were processed by conventional furnace firing and hot pressing. Thermal cycling was performed in Fusayama’s artificial saliva for 5000 cycles between 5±1 and 60±2°C. After thermal cycling, shear bond tests were carried out by using a custom-made stainless steel apparatus. The results were analyzed using t-Student test and non-parametric Kruskal–Wallis test (p<0.01). Most of the polished-fired specimens were fractured during thermal cycling; thus, it was not possible to obtain the shear bond strength results for this group. Sandblasted-fired, polished-hot pressed, and sandblasted-hot pressed specimens presented the shear bond strength values of 76.2±15.9, 52.2±23.6, and 59.9±22.0MPa, respectively. Statistical analysis indicated that thermal cycling affected the polished specimens processed by firing, whereas a significant difference was not observed on the other groups.
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ISSN:1751-6161
1878-0180
DOI:10.1016/j.jmbbm.2015.01.004