粘结性树脂与三种铬含量不同的镍铬合金的粘结强度。

Bond strength of adhesive resin to three nickel-chromium alloys with varying chromium content.

作者信息

Salonga J P, Matsumura H, Yasuda K, Yamabe Y

机构信息

Department of Prosthodontics, University of the East, College of Dentistry, Manila, Philippines.

出版信息

J Prosthet Dent. 1994 Dec;72(6):582-4. doi: 10.1016/0022-3913(94)90288-7.

DOI:10.1016/0022-3913(94)90288-7

PMID:7853253

Abstract

This in vitro study evaluated the influence of chromium content on bond strength and durability between nickel-chromium alloys and an adhesive resin that contained 4-methacryloxyethyl trimellitate anhydride. Three nickel-chromium alloys with different chromium content, as well as pure chromium and pure nickel metals, were bonded and tested for shear strength. After repeated thermocycling, shear bond strength decrease was lower in alloys containing high chromium content. Pure chromium metal demonstrated a 15.2% decrease, whereas pure nickel metal demonstrated the greatest (53.7%) decrease. The results suggest that nickel-chromium alloys with higher chromium content are desirable for 4-methacryloxy-ethyl trimellitate anhydride resin-bonded restorations.

摘要

这项体外研究评估了铬含量对含偏苯三酸三缩水甘油酯甲基丙烯酸酯的镍铬合金与粘结树脂之间粘结强度和耐久性的影响。对三种铬含量不同的镍铬合金以及纯铬和纯镍金属进行粘结，并测试其剪切强度。反复热循环后，高铬含量合金的剪切粘结强度下降较低。纯铬金属的剪切粘结强度下降了15.2%，而纯镍金属的下降幅度最大（53.7%）。结果表明，对于含偏苯三酸三缩水甘油酯甲基丙烯酸酯树脂粘结修复体而言，铬含量较高的镍铬合金是理想的选择。