Jochen D G, Caputo A A, Matyas J
J Prosthet Dent. 1986 Feb;55(2):186-8. doi: 10.1016/0022-3913(86)90339-2.
This study indicates that the unaltered specimens of both alloys produced the lowest bond values; for the gold-palladium alloy, a short degassing period (manufacturer's recommendation) and a 10-minute degassing period resulted in significantly lower bond strengths than those observed with the aluminum oxide and the steam cleaning treatments; and all treatments of the silver-palladium alloy gave comparable bond strengths to that obtained with the manufacturer's recommendation for surface treatment. Because the simplified methods gave equivalent or higher bond strength values than the manufacturer's recommendations, and because of the time saving, we recommend the following procedures for the porcelain-alloy systems tested: After casting and investment removal, use an abrasive to remove casting irregularities and to modify or correct the surface that will receive porcelain. Create a uniform matte finish on the surface that is to receive porcelain by pressure blasting with 50 micron aluminum oxide particles, or steam clean the surface for 30 seconds, or both. Proceed with opaquing.
本研究表明，两种合金未经处理的试样产生的粘结值最低；对于金钯合金，较短的除气时间（制造商推荐）和10分钟的除气时间导致的粘结强度明显低于氧化铝处理和蒸汽清洁处理所观察到的粘结强度；银钯合金的所有处理方法所得到的粘结强度与制造商推荐的表面处理方法所得到的粘结强度相当。由于简化方法得到的粘结强度值与制造商的推荐值相当或更高，且节省时间，我们推荐对所测试的烤瓷合金系统采用以下程序：铸造和去除包埋料后，使用磨料去除铸造缺陷，并对接受烤瓷的表面进行修整或校正。通过用50微米的氧化铝颗粒进行压力喷砂，在接受烤瓷的表面形成均匀的哑光表面，或对表面进行30秒的蒸汽清洁，或两者兼用。然后进行遮色处理。
