Analysis of Porosity in the Fixed Dental Prostheses
10.3969/j.issn.1671-7104.2016.03.015
- VernacularTitle:固定义齿的孔隙度问题分析
- Author:
Hui LIU
1
;
Yanping XIAO
;
Xiaojun CHEN
;
Wenrong WANG
;
Neng CHEN
Author Information
1. 广东省医疗器械质量监督检验所三水中心
- Keywords:
metal ceramic;
al ceramic;
denture;
porosity
- From:
Chinese Journal of Medical Instrumentation
2016;40(3):212-213
- CountryChina
- Language:Chinese
-
Abstract:
Fixed dental prostheses with ceramic were widely used in people for their good strength and aesthetics. As the defect of the products wil lead to failure in prostheses, good quality is essential in daily use. Accroding to analysis the date of the fixed dental prostheses in porosity test, and link with the shape and location of the pores, we have the result that the reject ratio of the fixed dental prostheses in porosity is exceed 40%, the main unqualified category is that big pores with diameter greater than 150 mm exist in ceramic. This may be introduced by the mechanic in the process of brush porcelain by mixing in bubbles or impurities.
