"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

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

C. PREJMEREAN1,* , GH. TOMOAIA2, M. TOMOAIA-COTISEL3, A. MOCANU3, O. HOROVITZ3, M. MOLDOVAN1, D. DUDEA4, G. VOICU5, I. PETEAN3

Affiliation

  1. Babes-Bolyai University, Raluca Ripan Chemistry Research Institute, 30 Fantanele Str., 400294 Cluj-Napoca, Romania
  2. Iuliu Hatieganu University of Medicine and Pharmacy, Orthopaedics and Traumatology Dept., 47 Traian Mosoiu Str., 400132 Cluj-Napoca, Romania
  3. Babes-Bolyai University, Faculty of Chemistry and Chemical Engineering, 11 Arany J. Str., 400028 Cluj-Napoca, Romania
  4. Iuliu Hatieganu University of Medicine and Pharmacy, Faculty of Dentistry, Cluj-Napoca, Romania
  5. University Politehnica of Bucharest, Faculty of Applied Chemistry and Material Science, Bucharest, Romania

Abstract

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..

Keywords

Surface active glass, Poly(alkenoic acids), Composites, AFM.

Submitted at: Nov. 29, 2007
Accepted at: March 17, 2008

Citation

C. PREJMEREAN, GH. TOMOAIA, M. TOMOAIA-COTISEL, A. MOCANU, O. HOROVITZ, M. MOLDOVAN, D. DUDEA, G. VOICU, I. PETEAN, Surface organization and stability of some composites exposed to biologic medium. Atomic force microscopy observations, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 3, pp. 597-601 (2008)