Hengchang X, Vingerling P A, Wenyi L, Gang Z, Tong W
Institute of Stomatology, Beijing Medical University, China.
J Oral Rehabil. 1990 Jan;17(1):107-15. doi: 10.1111/j.1365-2842.1990.tb01399.x.
A new machine was developed to study the wear of dental filling materials in vitro. Four products: amalgam, Adaptic, Clearfil and acrylic resin were tested. Wear was measured quantitatively by weighing the specimen, and the wear pattern was studied qualitatively with a scanning electron microscope (SEM). A comparison was made with materials that were placed in the mouth for a prolonged period. It was found that the in vitro wear pattern was comparable to that found in vivo.
开发了一种新机器用于在体外研究牙科填充材料的磨损情况。测试了四种产品：汞合金、Adaptic、Clearfil和丙烯酸树脂。通过对样本称重定量测量磨损，并使用扫描电子显微镜（SEM）定性研究磨损模式。与长时间置于口腔中的材料进行了比较。发现体外磨损模式与体内发现的磨损模式相当。
