Evaluation of two thione primers and composite luting agents used for bonding a silver-palladium-copper-gold alloy.
Evaluation of two thione primers and composite luting agents used for bonding a silver-palladium-copper-gold alloy.
复制标题
用于粘合银-钯-铜-金合金的两种硫酮底漆和复合粘合剂的评估。
DOI：
10.1046/j.1365-2842.2002.00920.x
复制
发表时间：
2002
影响因子：
2.9
通讯作者：
N. Tanoue
中科院分区：
文献类型：
--
作者：
H. Matsumura;M. Atsuta;N. Tanoue
本研究的目的是评价两种金属粘合剂系统与银-钯-铜-金（Ag-Pd）合金的粘合强度和耐久性。圆盘试样由Ag-Pd合金（Castwell M.C. 12），用50 μ m粒度的氧化铝空气研磨，并且它们用两种底漆-水泥粘结系统（Alloy Primer和Panavia Fluoro Cement; Metaltite和Bistite II）粘结。对于每种骨水泥，还制备了未涂底漆的样本作为实验对照。在热循环（4-60 ℃，每次1分钟，100000次循环）之前和之后测定剪切粘结强度。平均热循环后粘结强度（MPa）（n=8）为：Metaltite-Bistite II系统为39.0，Alloy Primer-Panavia氟骨水泥系统为32.2，Bistite II材料为23.1，Panavia氟骨水泥材料为21.0。使用含有双官能单体的专用底漆，可提高两种骨水泥的热循环后粘结强度（P < 0.05）。然而，在热循环后，无论使用哪种底漆，两种粘固剂之间的粘结强度差异均不显著（P > 0.05）。得出的结论是，硫酮底漆和粘合剂的组合使用对于粘合所研究的Ag-Pd合金是必要的。
The purpose of the current study was to evaluate the bond strength and durability of two metal adhesive systems bonded to a silver-palladium-copper-gold (Ag-Pd) alloy. Disk specimens were cast from an Ag-Pd alloy (Castwell M.C. 12), air-abraded with 50 micro m grain-sized alumina, and they were bonded with two primer-cement bonding systems (Alloy Primer and Panavia Fluoro Cement; Metaltite and Bistite II). For each cement, unprimed specimens were also prepared as experimental controls. Shear bond strengths were determined both before and after thermocycling (4-60 degrees C, 1 min each, 100 000 cycles). The average post-thermocycling bond strengths in MPa (n=8) were: 39.0 for the Metaltite-Bistite II system, 32.2 for the Alloy Primer-Panavia Fluoro Cement system, 23.1 for the Bistite II material and 21.0 for the Panavia Fluoro Cement material. The use of proprietary primers, both of which contain thione functional monomer, enhanced the post-thermocycling bond strengths of both cements (P < 0.05). After thermocycling, however, the difference in bond strength between the two cements was not significant regardless of the use of the primers (P > 0.05). It is concluded that the combined use of the thione primer and the luting agent is necessary for bonding the Ag-Pd alloy examined.