Ben-Amar A
Section of Operative Dentistry, Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Israel.
J Am Dent Assoc. 1989 Dec;119(6):725-8. doi: 10.14219/jada.archive.1989.0259.
Microleakage is a problem of all fresh amalgam restorations and is clinically undetectable. Because microleakage may be responsible for pulp irritation, pulp inflammation, necrosis, and recurrent caries, it is essential to prevent and control it. Correct cavity margin preparations, proper amalgam manipulation, proper condensation, and burnishing can minimize microleakage in amalgam restorations. The use of conventional varnish or dentin adhesive on cavity walls before the insertion of the amalgam is the best method to reduce microleakage. Most well-manipulated and well-placed amalgams do not exhibit microleakage after a time.
微渗漏是所有新鲜银汞合金修复体都存在的问题，临床上无法检测到。由于微渗漏可能导致牙髓刺激、牙髓炎症、坏死和继发龋，因此预防和控制微渗漏至关重要。正确的洞缘制备、适当的银汞合金操作、适当的压实和抛光可以将银汞合金修复体中的微渗漏降至最低。在充填银汞合金之前在洞壁上使用传统的护髓剂或牙本质黏结剂是减少微渗漏的最佳方法。大多数操作良好且就位合适的银汞合金修复体一段时间后不会出现微渗漏。
