Campbell S D
Harvard School of Dental Medicine, Boston, Mass.
J Prosthet Dent. 1990 Feb;63(2):151-5. doi: 10.1016/0022-3913(90)90098-w.
The study compared the thickness of conventional (Tru-Fit and Belle de St. Claire) and all-ceramic (Dicor and Cerestore) die spacers. Three coats of Tru-Fit, two coats of Belle de St. Claire, and two coats of Cerestore die spacers provided a 25 microns thickness. A single coat of the Dicor spacer resulted in a 37 microns layer. A significantly thinner layer occurred at the convex occlusal line angles for all of the materials tested. This could impede the flow of the luting agent at the time of cementation.
该研究比较了传统型（Tru-Fit和Belle de St. Claire）以及全瓷型（Dicor和Cerestore）代型间隙剂的厚度。Tru-Fit涂三层、Belle de St. Claire涂两层以及Cerestore代型间隙剂涂两层可形成25微米的厚度。Dicor间隙剂涂一层可形成37微米的厚度。在所有测试材料的凸面咬合线角处，均出现了明显更薄的一层。这可能会在粘接时阻碍粘接剂的流动。
