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Vol. 4 No. 3 (2012)

YbF3/SiO2 Fillers as Radiopacifiers in a Dental Adhesive Resin

https://doi.org/10.1007/BF03353713
Neftali L. V. Carreño
Technology Development Center, Engineering of Material, Federal University of Pelotas, RS, Brazil
Thiago C. S. Oliveira
Biomaterials Development and Control Center, School of Dentistry, Federal University of Pelotas, RS, Brazil
Evandro Piva
Biomaterials Development and Control Center, School of Dentistry, Federal University of Pelotas, RS, Brazil
Fernanda B. Leal
Biomaterials Development and Control Center, School of Dentistry, Federal University of Pelotas, RS, Brazil
Giana S. Lima
Biomaterials Development and Control Center, School of Dentistry, Federal University of Pelotas, RS, Brazil
Marcelo D. Moncks
Department of Analytical and Inorganic Chemistry, IQG, Federal University of Pelotas, RS, Brazil
Cristiane W. Raubach
Technology Development Center, Engineering of Material, Federal University of Pelotas, RS, Brazil
Fabr´ıcio A. Ogliari
Technology Development Center, Engineering of Material, Federal University of Pelotas, RS, Brazil

Corresponding Author: Neftali L. V. Carreño

nlv.carreno@gmail.com

Nano-Micro Letters, Vol. 4 No. 3 (2012), Article Number: 189-196

Abstract

The objective of this study was to evaluate the effect of functionalizing a dental adhesive resin with YbF3/SiO2 fillers for use as radiopacifiers. Particles of YbF3/SiO2 were obtained with the high-energy mechanical milling method and characterized by both physical and chemical methods. After characterization, the particles were sieved and silanized prior to being incorporated into an adhesive resin. The stability of the particle suspension was then evaluated. After light activation, the radiopacity, degree of conversion, flexural strength and elastic modulus were determined. The dental adhesive resins with 10 and 15 wt% of filler provided satisfactory radiopacity, while flexural strength and elastic modulus were not affected. The degree of conversion was statistically lower than that of the control (p<0.05). The method used for incorporating the tested ytterbium fluoride/silicon dioxide particles at concentrations of 10 and 15 wt% was shown to be feasible for the development of a radiopaque dental adhesive system.

Keywords

Radiopacifier YbF3/SiO2 Dental adhesive resin Composite
Carreño, Neftali L. V., Thiago C. S. Oliveira, Evandro Piva, Fernanda B. Leal, Giana S. Lima, Marcelo D. Moncks, Cristiane W. Raubach, and Fabr´ıcio A. Ogliari. 2012. “YbF3/SiO2 Fillers As Radiopacifiers in a Dental Adhesive Resin”. Nano-Micro Letters 4 (3):189-96. https://doi.org/10.1007/BF03353713.
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