Matsumura H, Kato H, Atsuta M
Department of Fixed Prosthodontics, Nagasaki University School of Dentistry, Japan.
J Prosthet Dent. 1997 Nov;78(5):511-7. doi: 10.1016/s0022-3913(97)70068-4.
Although selection of clinically reliable bonding system is essential, limited information concerning the combination of durable ceramic bonding and luting agents is available.
This in vitro study was conducted for the purpose of evaluating bond strengths of ceramic bonding materials in conjunction with their initiation and silane-activation modes.
Disk-shaped fired porcelain specimens were air-abraded with alumina, then bonded with six combinations of three silane priming and two luting agents; specimens were also bonded with two luting cements without priming. Shear bond strengths were determined both before and after thermocycling.
For the two unprimed control groups, as well as two of the groups bonded with Panavia 21 cement (Clearfil Porcelain Bond and Panavia 21; Panavia Ceramic Primer and Panavia 21) the reduction in bond strengths after thermocycling was remarkable as compared with the corresponding prethermocycling groups (p < 0.05). A dual-cured luting cement (Clapearl DC) used with each of three silane priming materials (Clapearl Bonding Agent, Clearfil Porcelain Bond, and Panavia Ceramic Primer) exhibited consistent shear bond strength greater than 30 MPa after 20,000 thermocycles.
The above three systems appeared to be useful for the long-term clinical success of feldspathic porcelain restorations.
尽管选择临床可靠的粘结系统至关重要，但关于耐用陶瓷粘结剂和粘结剂组合的信息有限。
本体外研究旨在评估陶瓷粘结材料的粘结强度及其引发和硅烷活化模式。
将圆盘形烧制瓷标本用氧化铝进行空气喷砂处理，然后用三种硅烷底漆和两种粘结剂的六种组合进行粘结；标本还使用两种未打底的粘结水泥进行粘结。在热循环前后测定剪切粘结强度。
对于两个未打底的对照组，以及与Panavia 21水泥粘结的两组（Clearfil Porcelain Bond和Panavia 21；Panavia Ceramic Primer和Panavia 21），与相应的热循环前组相比，热循环后粘结强度的降低显著（p < 0.05）。一种双固化粘结水泥（Clapearl DC）与三种硅烷底漆材料（Clapearl Bonding Agent、Clearfil Porcelain Bond和Panavia Ceramic Primer）中的每一种一起使用，在20000次热循环后表现出一致的剪切粘结强度大于30 MPa。
上述三种系统似乎有助于长石质瓷修复体的长期临床成功。
