2004 Volume 22 Issue 3 Pages 217-225
The aim of this study is to compare tensile bond strength to bovine enamel and dentin, polymerizing ratio and solubility in ethanol of AQ Bond and AQ Bond Plus by using Halogen, Xenon or LED light curing unit. The tensile bond strength of both bonding agents was measured with an Instron universal testing machine. The polymerizing ratio was measured with FT-IR based on ATR method. For the solubility in absolute ethanol of both bonding agents, residual bonding agents were observed with optical microscope after rinsing the bonding samples which were cured with each light curing unit by absolute ethanol for 5 seconds.
The following results were obtained.
1. For the tensile bond strength to enamel and dentin, AQ Bond Plus showed significantly higher strength than AQ Bond. AQ Bond Plus indicated stronger and stable bond strength by using all light curing units.
2. AQ Bond Plus showed significantly higher polymerizing ratio than AQ Bond, and the polymerizing effect of AQ Bond Plus was not influenced by using all light curing units.
3. For the solubility in ethanol of cured bonding agents, more residual cured bonding agent was observed at the sample of AQ Bond Plus.
