摘要
目的：探讨减少银汞合金充填后边缘微渗漏的有效方法。方法：选择无龋的离体磨牙４８个，随机分为４组，每个牙分别制面洞、颊面颈１／３洞。比较几种窝洞洞壁处理后对微渗漏的影响。结果：银汞合金充填１个月后，１０％ＥＤＴＡ处理窝洞组、１０％ＥＤＴＡ加护洞漆组与空白组之间的边缘微渗漏无明显差异，而含３％ＦｅＣｌ３的１０％枸橼酸（１０－３液）处理加银汞合金粘结剂组则明显减少微渗漏。
Aim:To find effective methods to decrease microleakage at the material/cavity wall interface of amalgam restoration. Methods:Selected 48 non-carious extracted molars, and divided them into 4 groups, then made occlusal or cervical cavities and filling with amalgam in each tooth,comparing the extent of microleakage among groups. Results:One month after amalgam restorations, there were no significant difference among the micrdeakage of 10%EDTA group, 10%EDTA+cavity varnish and control group. Howerer,10%Citric acid containing 3%FeCl 3 with amalgam bonding agent significantly reduced the microleakage. Conclusions: It indicated bonding amalgam restorations reduced the microleakage significantly.
出处
《牙体牙髓牙周病学杂志》
CAS
1998年第3期185-186,共2页
Chinese Journal of Conservative Dentistry
