Microleakage of glass ionomer/composite resin restorations: a laboratory study. 1. The influence of glass ionomer cement.
Microleakage of glass ionomer/composite resin restorations: a laboratory study. 1. The influence of glass ionomer cement.
复制标题
玻璃离聚物/复合树脂修复体的微渗漏：实验室研究。
DOI：
10.1111/j.1834-7819.1992.tb00829.x
复制
发表时间：
1992
影响因子：
2.1
通讯作者：
F. Elizabeth Martin
中科院分区：
文献类型：
--
作者：
E. Dell Kingsford Smith;F. Elizabeth Martin
釉质边缘的酸蚀，通常与斜切和使用低粘度树脂相结合，导致复合牙釉质的密封改善。当牙釉质缺失且边缘累及牙本质或牙骨质时，更常观察到微渗漏。使用玻璃离子水门汀，作为修复材料和作为与复合树脂贴面相结合的基底，一直被提倡作为一种最大限度地减少边缘位于牙本质或牙骨质中的微渗漏的方法。四个修复技术，包括玻璃离子水门汀，在体外，以恢复宫颈腔。热循环后，沿沿着咬合和牙龈边缘对染料渗透进行评分。在所有情况下，牙龈边缘表现出较不可靠的密封比咬合边缘。与玻璃离子修复粘固剂相比，夹层充填在咬合和牙龈边缘产生了更好的上级密封。
Acid-etching of enamel margins, often combined with bevelling and use of a low viscosity resin, has resulted in improved sealing of composite restorations. When enamel is absent and margins involve dentine or cementum, microleakage is more often observed. The use of glass ionomer cement, as both a restorative material and as a base combined with a veneer of composite resin, has been advocated as a means of minimizing microleakage where margins are placed in dentine or cementum. Four restorative techniques incorporating glass ionomer cement were used, in vitro, to restore cervical cavities. After thermal cycling, dye penetration was scored along occlusal and gingival margins. In all instances the gingival margin exhibited a less reliable seal than the occlusal margin. The sandwich restorations produced a superior seal at both occlusal and gingival margins when compared with glass ionomer restorative cement.