Ramos J C, Perdigão J
School of Dentistry, Department of Operative Dentistry, University of Coimbra, Portugal.
Am J Dent. 1997 Jun;10(3):152-8.
To compare two one-bottle dentin bonding systems (DBS) with five multi-bottle DBS and one resin-modified glass-ionomer cement, regarding their ability to bond spherical amalgam to freshly prepared dentin surfaces, in vitro. The tested hypothesis was that one-bottle DBS would result in lower shear bond strengths than multi-bottle DBS.
Eighty flat dentin bonding sites were prepared to 600-grit on middle dentin of caries-free human molars mounted in acrylic resin. The bonding surfaces were treated with eight different bonding systems, according to manufacturer's instructions: All-Bond 2; Amalgambond Plus; Fuji Duet; One-Step/Resinomer; OptiBond; OptiBond FL; Prime & Bond 2.0/Dyract Cem; and Scotchbond Multi-Purpose Plus. A spherical amalgam alloy (Megalloy) was hand-condensed on the treated surfaces. After thermocycling, the bond strengths were calculated by testing the specimens in shear. Field-emission SEM examinations were carried out to evaluate the effects of different treatments on the dentin-amalgam interface of MO/OD cavities treated under the same protocol.
Statistical analysis revealed that Prime & Bond 2.0/Dyract Cem, Amalgambond Plus, and Scotchbond Multi-Purpose Plus resulted in the highest shear bond strengths. The field-emission SEM observations showed accumulation of the fluid adhesive resin underneath the amalgam restoration, and an interpenetration between the amalgam and the adhesive resin, except for OptiBond and OptiBond FL. All systems, but Fuji Duet, formed an acid-resistant resin-dentin interdiffusion zone.
在体外比较两种单瓶牙本质粘结系统（DBS）与五种多瓶DBS以及一种树脂改性玻璃离子水门汀，考察它们将球形银汞合金粘结至新制备牙本质表面的能力。所检验的假设为，单瓶DBS的剪切粘结强度低于多瓶DBS。
在安装于丙烯酸树脂中的无龋人类磨牙的中层牙本质上制备80个平面牙本质粘结部位，使其达到600目粒度。根据制造商说明，用八种不同的粘结系统处理粘结表面：全粘结2型；银汞粘结增强剂；富士二重奏；一步法/树脂单体；OptiBond；OptiBond FL；Prime & Bond 2.0/Dyract Cem；以及Scotchbond多用途增强型。将球形银汞合金（Megalloy）手工压实于处理过的表面。热循环后，通过剪切测试样本计算粘结强度。进行场发射扫描电子显微镜检查，以评估在相同方案下处理的MO/OD窝洞的牙本质-银汞合金界面上不同处理的效果。
统计分析显示，Prime & Bond 2.0/Dyract Cem、银汞粘结增强剂和Scotchbond多用途增强型的剪切粘结强度最高。场发射扫描电子显微镜观察显示，除OptiBond和OptiBond FL外，流体粘结树脂在银汞合金修复体下方积聚，且银汞合金与粘结树脂之间相互渗透。除富士二重奏外，所有系统均形成了耐酸的树脂-牙本质相互扩散区。
