POROSITY IN COMPOSITE RESINS

被引：25

作者：

FANO, V ^{[1
]}

ORTALLI, I ^{[1
]}

POZELA, K ^{[1
]}

机构：

[1] WORLD LAB,LITHUANIAN BRANCH,VILNIUS,LITHUANIA

来源：

BIOMATERIALS | 1995年 / 16卷 / 17期

关键词：

DENTAL MATERIALS; COMPOSITE MATERIALS; MICROFILLED RESTORATIVE RESINS; STRUCTURAL PROPERTIES;

D O I：

10.1016/0142-9612(95)91043-X

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Porosity in the pastes of composite resins before and after polymerization has been measured. The influence of the diameter of the extrusion orifices and the spatulation of the chemically-activated pastes has been evaluated. Considering that thin layers of these materials are transparent, the investigation has been carried out mainly by analysis of similar to 300 mu m or lower thickness layers, that are still transparent under the microscope. Generally, there was a significant dependence of the porosity on the orifice diameter. However, this rule showed some exceptions. As far as the chemically-activated pastes were concerned, in all examined cases the number of small size (10-40 mu m) porosities increased after spatulation.

引用

页码：1291 / 1295

页数：5

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