Influence of surface conditions and silane agent on the bond of resin to IPS Empress 2 ceramic.
Influence of surface conditions and silane agent on the bond of resin to IPS Empress 2 ceramic.
复制标题
表面条件和硅烷剂对树脂与 IPS Empress 2 陶瓷粘合的影响。
DOI：
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发表时间：
2003
影响因子：
2.3
通讯作者：
J. Knowles
中科院分区：
文献类型：
--
作者：
A. Spohr;L. C. Sobrinho;S. Consani;M. Sinhoreti;J. Knowles
PURPOSE
The aim of this study was to evaluate the effect of different ceramic surface treatments on the tensile bond strength between IPS Empress 2 ceramic framework and Rely X adhesive resin cement, with or without the application of a silane coupling agent.
MATERIALS AND METHODS
One hundred twenty disks were made, embedded in resin, and randomly divided into six groups: group 1 = sandblasting (100 microm), no silanation; group 2 = sandblasting (100 microm), silane treatment; group 3 = sandblasting (50 microm), no silanation; group 4 = sandblasting (50 microm), silane treatment; group 5 = hydrofluoric acid etching, no silanation; and group 6 = hydrofluoric acid etching, silane treatment. The disks were bonded into pairs with adhesive resin cement. All samples were stored in distilled water at 37 degrees C for 24 hours and then thermocycled. The samples were submitted to tensile testing.
RESULTS
The use of silane improved the bond strength in relation to the groups in which silane was not applied (P < .05). The most effective surface treatment was etching with 10% hydrofluoric acid, both with (25.6 MPa) and without silane application (16.4 MPa); these values showed a statistically significant difference compared to sandblasting with 50- and 100-microm Al2O3. Sandblasting with 50-microm Al2O3, with (11.8 MPa) and without silane (5.4 MPa), demonstrated significantly higher tensile bond strength than sandblasting with 100-microm Al2O3, with (8.3 MPa) and without silane (3.8 MPa).
CONCLUSION
Combined application of 10% hydrofluoric acid and silane enhanced the bond strength between the IPS Empress 2 ceramic framework and resin agent.
