牙科 聚合物基复合材料可加工毛坯

[中文适用范围]： 本文件详细说明了聚合物基复合材料可加工毛坯在铣削工艺方面的特性，并提供了解决这些材料特有的临床问题的测试方法。 此外，本文件还规定了包装和材料上应描述的项目，以及使用说明中应包含的描述。 本文件中涵盖的聚合物基复合材料可加工毛坯是用于通过铣削工艺制造永久性牙科修复器具（例如单牙冠或嵌体）的毛坯。 它们不包括允许用一个毛坯或临时使用的材料制造两个或多个单位的牙冠或牙桥的大尺寸毛坯（例如圆盘）。 [外文原描述]： This document specifies the characteristics of polymer-based composite machinable blanks with respect to the milling process and provides the test methods that address the clinical issues specific to those materials. In addition, this document specifies the items to be described on the packaging and materials, as well as descriptions to be included in the instructions for use. The polymer-based composite machinable blanks covered in this document are blanks that are used for fabricating permanent dental restorative appliances (e.g. single crowns or inlays) by milling processes. They do not include large-sized blanks (e.g. discs) that allow for the fabrication of two or more units of crowns or bridges from one blank or materials for temporary use.