Landesman H M, de Gennaro G G, Martinoff J T
J Prosthet Dent. 1981 Aug;46(2):161-6. doi: 10.1016/0022-3913(81)90301-2.
SEM studies indicate that the control alloy, Minigold, WLW, and Litecast metals presented similar results in relation to marginal fit when proper techniques are followed. Clinical evaluation based on the criteria of gingival irritation, patient sensitivity, and abrasion demonstrated no statistically significant differences between the casting alloys tested and the control. The control alloy had significantly fewer restorations with tarnish and corrosion than either WLW or Litecast. There was no significant difference between the control alloy and Minigold in terms of tarnish and corrosion.
扫描电子显微镜研究表明，当采用适当技术时，对照合金、Minigold、WLW和Litecast金属在边缘适合性方面呈现出相似的结果。基于牙龈刺激、患者敏感性和磨损标准的临床评估表明，所测试的铸造合金与对照之间在统计学上没有显著差异。对照合金出现变色和腐蚀的修复体明显少于WLW或Litecast。对照合金与Minigold在变色和腐蚀方面没有显著差异。
