Surface organization and stability of some composites exposed to biologic medium. Atomic force microscopy observations

Two composites for dental use (glass ionomer cements), exposed to air and artificial saliva, were analyzed by atomic force microscopy (AFM). The composites differ only by their organic constituent, a copolymer based on modified alkenoic acids, while the inorganic component was the same glass powder...

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Bibliographic Details
Published in:Journal of Optoelectronics and Advanced Materials 2008-03, Vol.10 (3), p.597-601
Main Authors: Prejmerean, C, Tomoaia, Gh, Tomoaia-Cotisel, M, Mocanu, A, Horovitz, O, Moldovan, M, Dudek, D, Voicu, G, Petean, I
Format: Article
Language:English
Online Access:Get full text
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Summary:Two composites for dental use (glass ionomer cements), exposed to air and artificial saliva, were analyzed by atomic force microscopy (AFM). The composites differ only by their organic constituent, a copolymer based on modified alkenoic acids, while the inorganic component was the same glass powder blend. The surface of the composites was investigated in native state, and after glossing with a composite resin, in air and after 24 h or 7 days in artificial saliva. The different stability of the two composites after a long time contact with the biological medium is discussed on the basis of AFM images.
ISSN:1454-4164