抄録
Four different types of methods for testing adhesives for binding to 18-8 stainless steel (SUS 304) were performed using two kinds of dental adhesives, Panavia EX (PE) and Superbond C & B (SB), and the coefficient of variation (CV%) of the values determined and the destructive mode were compared among the testing methods.
Furthermore, using the Type III method with high reproducibility that produced a lower coefficient of variation and surface destruction among the above testing methods, the effect of surface treatment on the bond strength was studied, and the following results were obtained.
1. When the bond strength was compared according to the coefficient of variation, it was low for both PE and SB when testing method Type III or IV was used, revealing that they produced little variation.
2. Evaluation of the effect of surface treatment using method Type III which induced surface destruction revealed that the bond strength of PE was increased by ca. 50% by sand-blast treatment or silane-coupling treatment, and that Sn-electro deposition had no effect.
3. There was no difference in the bond strength of SB due to sand-blasting or silanecoupling treatment as forms of surface treatment, but the strength was decreased by Sn-electro deposition.
