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In vitro evaluation of biological liquids adsorption on dental materials

D. SPRIDON1, M. VASILIU2, N. DUMITRASCU1

Affiliation

  1. Department of Physics, Faculty of Physics, Al. I. Cuza University, Iasi, Romania
  2. Faculty of Dentistry, “Petre Andrei” University, Iasi, Romania

Abstract

Dental materials are subjected to various conditions such as pH and temperature of biological fluids, mechanical stress etc. having effects on both oral health and restoration success. In particular, surface energy of dental materials and their morphology are very important to control the processes at interface with biological liquids. Our study is focused on in vitro evaluation of certain dental materials from point of view of biological liquids absorption based on known method undertaken from physics. Main parameters which characterize the adhesion properties of dental materials were evaluated using general formulas and contact angle measurements. The morphology of the chosen materials was performed by atomic force microscopy (AFM) working in taping mode. Also, using AFM phase images were compared the chemical composition uniformity of analyzed surfaces. The samples investigated were certain commercial composites (Adoro, ArtGlass, Gradia and Ceramage) and ceramics (InLine, Duceram and Heraceram) and the studied biological liquids were water and artificial saliva. Results showed significant differences concerning the interface established between oral liquids and analyzed dental materials. Due to surface properties, the adhesion work of studied liquids onto the composites surface is lower comparing with one of the ceramic materials..

Keywords

Ceramics, Composites, Contact angle measurements, Atomic force microscopy, Adhesion work, Surface energy.

Submitted at: Dec. 11, 2009
Accepted at: Feb. 18, 2010

Citation

D. SPRIDON, M. VASILIU, N. DUMITRASCU, In vitro evaluation of biological liquids adsorption on dental materials, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 2, pp. 321-326 (2010)