Department of Fixed Prosthetic Dentistry, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan.
Dent Mater J. 2010 Mar;29(2):177-87. doi: 10.4012/dmj.2009-068.
This study evaluated the effects of metal primers on the bonding of adhesive resin to four pure metals (Au, Pd, Ag, Cu) and two noble alloys for porcelain fusing (high-gold and high-palladium content alloys). Bonding surface was polished with 600-grit silicon carbide paper and primed with one of the three metal primers (V-Primer, Metaltite, and M.L. Primer). Bonded specimens were fabricated by applying adhesive resin (Super-Bond C&B) on the primed surface. Shear bond strength (SBS) was determined both before and after thermocycling (4-60 degrees C for 2,000 cycles). The highest SBS values to each pure metal after thermocycling were 33.5 MPa for Au by M.L. Primer, 35.0 MPa for Ag by V-Primer, and 34.4 MPa for Cu by Metaltite. SBS to high-gold content alloy after thermocycling was 33.3 MPa by M.L. Primer. None of the primers was effective for pure Pd and high-palladium content alloy after thermocycling.
本研究评估了金属底涂剂对四种纯金属（金、钯、银、铜）和两种用于烤瓷熔附金属的贵金属合金（高金和高钯含量合金）的粘结剂粘结的影响。粘结面用 600 目碳化硅砂纸打磨，并用三种金属底涂剂（V-Primer、Metaltite 和 M.L. Primer）之一进行底涂。将粘结剂（Super-Bond C&B）涂在底涂表面上，制备粘结试件。在热循环（4-60°C，2000 次循环）前后测定剪切粘结强度（SBS）。热循环后，M.L. Primer 对金的 SBS 值最高，为 33.5 MPa；V-Primer 对银的 SBS 值最高，为 35.0 MPa；Metaltite 对铜的 SBS 值最高，为 34.4 MPa。M.L. Primer 对高金含量合金的 SBS 值最高，为 33.3 MPa。热循环后，金属底涂剂对纯钯和高钯含量合金均无效。
