Microleakage of posterior composite restorations.
Microleakage of posterior composite restorations.
复制标题
后牙复合修复体的微渗漏。
DOI：
10.1016/s0109-5641(85)80057-9
复制
发表时间：
1985
期刊：
影响因子：
--
通讯作者：
Bradley,EL
中科院分区：
文献类型：
--
作者：
Gross,JD;Retief,DH;Bradley,EL
最近，几种复合修复树脂被引入用于后牙。许多牙本质粘结剂可商购获得，用于与复合修复树脂结合使用。本研究的目的是评估II类MOD制备物在离体人下颌磨牙中的微渗漏，所述离体人下颌磨牙分别用化学活化的后牙复合树脂（P 10）和可见光固化复合树脂（P 30）与低粘度粘结树脂（Enamel Bond）和牙本质粘结树脂（Scotchbond）结合使用进行修复。修复后的牙齿在5°C至55°C的45CaCl2水溶液中进行100次完整的温度循环，并通过放射自显影评价微渗漏。在所有置换的颈部均观察到微渗漏。体外研究结果提示，在后牙复合体缺损的这些部位可能发生微渗漏。
Several composite restorative resins have recently been introduced for use in posterior teeth. A number of dentin bonding agents are commercially available for use in conjunction with composite restorative resins. The objective of thisin vitrostudy was to evaluate the microleakage of Class II MOD preparations in extracted human mandibular molar teeth restored with a chemically-activated posterior composite resin (P 10) and a visible light-cured composite resin (P 30) used in conjunction with a low viscosity bonding resin (Enamel Bond) and a dentin bonding resin (Scotchbond), respectively. The restored teeth were subjected to 100 complete temperature cycles in an aqueous45CaCl2solution between 5°C and 55°C and the microleakage evaluated from autoradiographs. Microleakage was observed at the cervical aspects of all the restorations. The results of thisin vitrostudy suggest that microleakage may occur at these sites of posterior composite restorations.