四种窝沟封闭剂渗透性的扫描电镜研究

A SEM study about the permeability of four kinds of pit and fissure sealants

用扫描电镜观察了自制光固化、自凝及美国Ｃｏｎｃｉｓｅ光固化、自凝封闭剂的渗透性。选择典型图象，输入ＥＭＩ电镜图象处理系统，对封闭剂树脂突长度进行测量；结果表明，四种封闭剂渗透性相似。

Abstract The permeability of four kinds of sealants wasobserved with scanning electron microscope. Thetypical resin tags figure of each sealant wasimported from SEM to EMI instruments, and thelength of resin tags was measured. Resultssuggested that self - made sealants (light cured andautopolymerised) and Concise (light cured andautopolymerised) had similar permeability.