POROSITY IN WATER-BASED DENTAL LUTING CEMENTS

被引：13

作者：

BERTENSHAW, BW

PIDDOCK, V

机构：

[1] Unit of Biomaterials Science, Department of Restorative Dentistry, University of Manchester Dental Hospital, Manchester, M15 6FH, Higher Cambridge Street

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE | 1993年 / 4卷 / 04期

关键词：

D O I：

10.1007/BF00122201

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The porosity in glass ionomer, zinc polycarboxylate and zinc phosphate dental cements has been studied using an optical microscopic technique. Pores of approximately 20 mum diameter were observed in all three materials. In addition, finer pores were seen in zinc oxide-containing cements. It has been postulated that the larger pores are due to entrapment of air during mixing and the finer porosity results from loss of excess water. The deleterious effects of such porosity are discussed.

引用

页码：415 / 417

页数：3

共 4 条

[1] CEMENT IN THE CONTEXT OF NEW MATERIALS FOR AN ENERGY-EXPENSIVE FUTURE [J].

BIRCHALL, JD .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1983, 310 (1511) :31-+

[2] POROSIMETRY STUDIES ON POLYACRYLIC-ACID ZNO CEMENTS [J].

PADILLA, A ;

VAZQUEZ, A ;

VAZQUEZPOLO, G ;

ACOSTA, DR ;

CASTANO, VM .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE, 1990, 1 (03) :154-156

[3] COMPRESSION STRENGTH OF POROUS SINTERED ALUMINA AND ZIRCONIA .9. TO CERAMOGRAPHY [J].

RYSHKEWITCH, E .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1953, 36 (02) :65-68

[4] ANALYSIS OF GLASS IONOMER CEMENT WITH USE OF SCANNING ELECTRON-MICROSCOPY [J].

SWIFT, EJ ;

DOGAN, AU .

JOURNAL OF PROSTHETIC DENTISTRY, 1990, 64 (02) :167-174

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