根管封闭剂的射线不透性。
Radiopacity of root canal sealers.
作者信息
Beyer-Olsen E M, Orstavik D
出版信息
Oral Surg Oral Med Oral Pathol. 1981 Mar;51(3):320-8. doi: 10.1016/0030-4220(81)90062-1.
A standardized and reproducible method of radiopacity measurements of dental materials is presented. The method entails densitometric comparison of standard-sized specimens with an aluminum step wedge under controlled conditions for exposure and film processing. Methodologic aspects have been evaluated and discussed. Measurements of forty root canal sealers demonstrated wide variations among the different types. Visual examination could not provide reproducible measurements of the radiopacity of the materials.
本文介绍了一种用于牙科材料射线不透性测量的标准化且可重复的方法。该方法需要在曝光和胶片冲洗的受控条件下，将标准尺寸的样本与铝阶梯楔形块进行密度测量比较。已对方法学方面进行了评估和讨论。对40种根管封闭剂的测量表明，不同类型之间存在很大差异。视觉检查无法提供材料射线不透性的可重复测量结果。
Zotero 插件