针固位汞合金和复合树脂基底的微漏

• 作 者: 江国英
• 出 处: 国外医学.口腔医学分册
• 发表日期: 2004年期
• 关键词: 微漏 汞合金 复合树脂修复体 复合树脂 固位 全冠修复 修复体 继发龋 基底 全冠

冠的边缘微漏,对铸造修复体的成败是个重要因素。出现微漏,会失去结合,而引起继发龋,从理论上讲作基底能够阻止发生在冠缘周围的微漏。但在基底边缘未被全冠复盖时,防止微漏也很重要。有报导冠内洞型的复合树脂修复体边缘微漏比汞合金的大。本研究的目的是比较在全冠修复中,用

Leakage at the edges of the crown is an important factor in the success or failure of the casting prosthesis. Leakage occurs, it will lose the combination, causing secondary caries, in theory, as a base to prevent the occurrence of micro-leakage around the crown edge. However, it is also important to prevent microleakage when the edges of the substrate are not covered by the crown. It is reported that the crown of the hole-shaped composite resin prosthesis margins micro-amalgam larger than the amalgam. The purpose of this study is to compare the use of crown restoration