2020 Volume 40 Issue 3 Pages 219-
The purpose of this study was to investigate the tensile bond strength of various commercially-available dental luting cements to the mirror-polished surface of pure titanium compared to those of the surface of Ag-Pd-Cu-Au alloy and gold alloy. Flat surfaces of the three different types of metallic dental materials (JIS Grade 2 Titanium, 12 ％ Ag-Pd-Cu-Au alloy and Type 3 gold alloy) were mirror-polished, surface treated and bonded the stainless steel rod using either of resin-based composite luting cement [Panavia® V5 (Kuraray Noritake Dental)], adhesive resin-based composite luting cement [RelyXTM Ultimate (3M ESPE)], 4-META/MMA-TBB luting cement [Super Bond® (Sun Medical)], and conventional glass-ionomer based luting cement [HY-Bond GlasIonomer CX (Shofu)]. For Panavia V5, either of Clearfil® Ceramic Primer Plus (Kuraray Noritake Dental) or Alloy Primer (Kuraray Noritake Dental) was applied to the polished metal surface before cementing. ScotchbondTM Universal Adhesive and V-Primer was applied before using Rely-X Ultimate and Super Bond, respectively. The different application methods of Super Bond on tensile bond strength was also investigated. V-Primer / Super Bond indicated the greatest bond strength than the other adhesive for 12％ Ag-PdCu-Au alloy. Although V-Primer/Super Bond showed the highest bond strength in both Type 3 gold alloy, the obtained strength was significantly lower than that for 12 ％ AgPd-Cu-Au alloy. For pure titanium, application of the mixture of Quick Monomer (5％ 4-META + 95 ％ MMA) and Catalyst V (TBB-O) prior to adhering using Super Bond obtained the enhancement of bond strength. Within the limitation of this study, it can be concluded that the effect of metal priming agent/luting cement to the mirror-polished dental metallic material depends on the type of metallic material.
