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Molecules. 2021 Aug 31;26(17). doi: 10.3390/molecules26175279.

Surface Studies on Glass Powders Used in Commercial Glass-Ionomer Dental Cements.

Molecules (Basel, Switzerland)

Agata Wawrzyńczak, Jacek Kłos, Izabela Nowak, Beata Czarnecka

Affiliations

  1. Faculty of Chemistry, Adam Mickiewicz University in Pozna?, Uniwersytetu Pozna?skiego 8, 61-614 Pozna?, Poland.
  2. Department of Biomaterials and Experimental Dentistry, Poznan University of Medical Sciences, Bukowska 70, 60-812 Pozna?, Poland.

PMID: 34500713 PMCID: PMC8433982 DOI: 10.3390/molecules26175279

Abstract

The surface properties of three commercial ionomer glass powders, i.e., Fuji IX, Kavitan Plus and Chemadent G-J-W were studied. Samples were analyzed by X-ray fluorescence spectroscopy (XRF), and the density was determined by gas pycnometry. Morphology was studied using scanning electron microscopy (SEM) and laser diffraction (LD) technique, whereas low-temperature nitrogen sorption measurements determined textural parameters like specific surface area and pore volume. Thermal transformations in the materials studied were evaluated by thermogravimetric analysis (TGA), which was carried out in an inert atmosphere between 30 °C and 900 °C. XRF showed that Fuji IX and Kavitan Plus powders were strontium-based, whereas Chemadent G-J-W powder was calcium-based. Powders all had a wide range of particle sizes under SEM and LD measurements. Specific surface areas and pore volumes were in the range 1.42-2.73 m

Keywords: density; ionomer glasses; particles morphology; surface properties; thermogravimetric analysis

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