Division of Removable Prosthodontics, Department of Oral Rehabilitation, Fukuoka Dental College, 2-15-1 Tamura, Sawara-Ku, Fukuoka 814-0193, Japan.
Dent Mater J. 2011;30(2):143-50. doi: 10.4012/dmj.2010-089. Epub 2011 Mar 4.
The aim of this study was to investigate the bond durability of heat-polymerized denture base resin to cast CP Ti and Co-Cr alloy. The alloy specimens were divided into five groups: 1) airborne-particle abraded with 50 µm alumina (SAND), 2) Rocatec tribochemical silica coating system (RO), 3) air-abraded followed by application of Epricord Opaque Primer (EP), 4) air-abraded followed by application of Super Bond C&B liquid (SB), 5) air-abraded followed by application of Alloy Primer (AL). Heat-polymerized denture resin was applied to the bonding area and polymerized according to the manufacturer's instructions. The halves of all specimens were thermocycled up to 10,000 cycles. Before thermocycling SB and AL showed significantly higher shear bond strengths than SAND, RO, EP for both metals. The shear bond strength of AL group after thermocycling was significantly higher than that of the other groups.
本研究旨在探究热聚合义齿基托树脂与铸造 CP Ti 和 Co-Cr 合金的粘结耐久性。合金试件分为五组：1）经 50μm 氧化铝喷丸处理（SAND），2）Rocatec 机械化学硅涂层系统（RO），3）空气喷砂后应用 Epricord 不透明底漆（EP），4）空气喷砂后应用 Super Bond C&B 液体（SB），5）空气喷砂后应用 Alloy Primer（AL）。将热聚合义齿树脂施加到粘结区域，并根据制造商的说明聚合。所有试件的两半均进行 10000 次热循环。在热循环之前，SB 和 AL 组的剪切粘结强度明显高于 SAND、RO 和 EP 组的两种金属。热循环后 AL 组的剪切粘结强度明显高于其他组。
