Ben-Amar A, Liberman R, Rothkoff Z, Cardash H S
Department of Operative Dentistry, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Israel.
Am J Dent. 1994 Jun;7(3):141-3.
The degree of microleakage at 14 days, 6 months and 1 year between Class V amalgam restorations lined with Copalite varnish or with Amalgambond was compared in this in vitro study. The restored teeth were subjected to cyclic occlusal loading, thermocycling procedures and then stored in a dye solution at the appropriate intervals. Dye penetration was assessed at the gingival and occlusal margins of the restorations. The results showed that with Amalgambond, there was significantly better sealing of the dentin tubules than with Copalite or unlined restorations (P < 0.001) at all times tested. Amalgambond showed significantly less microleakage as compared to unlined restorations (P < 0.01) at all time periods, and significantly less short-term (14 days) microleakage compared with the Copalite-lined group (P < 0.01).
在这项体外研究中，比较了用考派利特清漆或银汞粘结剂衬层的V类银汞合金修复体在14天、6个月和1年时的微渗漏程度。修复后的牙齿经过循环咬合加载、热循环程序，然后在适当的时间间隔储存在染料溶液中。在修复体的牙龈边缘和咬合边缘评估染料渗透情况。结果表明，在所有测试时间，使用银汞粘结剂时，牙本质小管的封闭效果明显优于使用考派利特清漆或无衬层修复体（P < 0.001）。在所有时间段，银汞粘结剂的微渗漏明显少于无衬层修复体（P < 0.01），与考派利特清漆衬层组相比，短期（14天）微渗漏明显更少（P < 0.01）。
