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Journal of Sol-Gel Science and Technology
Erschienen in: Journal of Sol-Gel Science and Technology 3/2012

01.09.2012

The effect of high tempered firing cycle on the bioactive behavior of sol–gel derived dental porcelain modified by bioactive glass

verfasst von: Marianthi Manda, Ourania-Menti Goudouri, Lambrini Papadopoulou, Nikolaos Kantiranis, Dimitris Christofilos, Konstantinos Triantafyllidis, Konstantinos Chrissafis, Konstantinos M. Paraskevopoulos, Petros Koidis

Erschienen in: Journal of Sol-Gel Science and Technology | Ausgabe 3/2012

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Abstract

The purpose of the present study was to investigate the influence of end-temperature over the structural properties, chemical composition and bioactivity of dental porcelain modified by bioactive glass. In particular, sol–gel derived specimens of bioactive glass dental porcelain underwent firing at two increased end-temperatures. All specimens were characterized using Scanning Electron Microscopy, Fourier Transform Infrared and Raman Spectroscopy, X-ray diffraction and N2-porosimetry. In vitro bioactivity test was performed too. SEM analysis of both specimens revealed smooth morphology of particles, which were sintered together. Spherical and closed porei were evident. N2- adsorption isotherms of specimens represented non nano-/meso-porous materials. FTIR and Raman spectroscopy revealed the predominance of b-wollastonite as well as the appearance of a-cristobalite. XRD confirmed the results. In vitro tests evidenced the bioactivity of the specimens regardless of temperature. However, the increased temperature caused delayed apatite precipitation. In conclusion, increased temperature favored the sintering process initiation, along with the surface crystallization, which in turn delayed bioactivity.
Vorheriger Artikel Green upconversion emission dependence on size and surface residual contaminants in nanocrystalline ZrO2:Er3+
Nächster Artikel In situ sol–gel preparation of high transparent fluorinated polyimide/nano-MgO hybrid films

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Metadaten
Titel
The effect of high tempered firing cycle on the bioactive behavior of sol–gel derived dental porcelain modified by bioactive glass
verfasst von
Marianthi Manda
Ourania-Menti Goudouri
Lambrini Papadopoulou
Nikolaos Kantiranis
Dimitris Christofilos
Konstantinos Triantafyllidis
Konstantinos Chrissafis
Konstantinos M. Paraskevopoulos
Petros Koidis
Publikationsdatum
01.09.2012
Verlag
Springer US
Erschienen in
Journal of Sol-Gel Science and Technology / Ausgabe 3/2012
Print ISSN: 0928-0707
Elektronische ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-012-2810-y

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