Effect of Thermal Aging on Shear Bond Strength Different Resin Cements to Zirconia
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2019, Vol 18, Issue 1
Abstract
The aim of this study was to investigate the effect of thermal cycling on different resin cement bond of zirconia ceramic.Sixtyzirconia discs with 3 mm thickness were prepared from zirconia blocks(Vita In-ceram YZ). Zirconia samples were sandblasted with Al2O3 powders having a particle size of 50 µm in the surface treatment for 60 sec under 2bar pressure and then silane application was performed on all samples. The samples were divided into two groups.A dual-cure adhesive resin cement Panavia V5 (Kuraray Dental, Tokyo, Japan) was cemented onto the first group specimensand RelyX Ultimate(3M Espe, Germany) resin cementwas applied onto the second specimens using cylindric molds with a diameter and high of 2 mm. Before thermal cycle, the specimens were stored in incubator at 37 ° C for 24 hours for completing polymerisation.Half of the samples of the two groups were not subjected to any aging process, while the remaining half were aged between 5-55 ° C temperature changes in the bath for 30 sec, transfer time 2 sec to 6000 rpm. Shear bond strengths were measured with a universal test machine(Shimadzu, Kyoto, Japan) and data were analyzed with a statistical programme (SPSS 24).There was no significant difference between the Panavia V5 and RelyX Ultimate groups before the thermal cyling (p> 0.05). There was a statistically significant difference between Panavia V5 and RelyX Ultimate after thermal cyling (p<0.05). Panavia V5 has a better bond strength before thermal aging, while the bonding strength is reduced with thermal aging by time.
Authors and Affiliations
Mehmet UĞUR, Idris KAVUT, Murat Mert AKBAL
Keywords
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- EP ID EP444231
- DOI 10.9790/0853-1801147478.
- Views 65
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