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Preparation and characterization of a nanostructured dental composite
Author(s) -
Nicola Oana,
Andronescu Ecaterina,
Ghitulica Cristina,
Birsan Mihaela,
Dinu Elena
Publication year - 2008
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200778144
Subject(s) - materials science , characterization (materials science) , composite number , cubic zirconia , ceramic , filler (materials) , nanoparticle , dental ceramics , composite material , nanotechnology
One of the major objectives of dental medicine that should be mentioned is the use of increasingly powerful materials of coronary restoration, as regards to their biomechanical, biofunctional and bio‐prophylactic characteristics. Nanotechnologies often provide the techniques used in the field of filler particles. Solutions to obtain a first generation of composite material with nanoparticles with dimensions between 5–75 nm have been successfully tested. It has been important to also obtain conglomerates with dimensions between 0.2–0.6 mm, that should be present. The present paper describes the preparation through sol–gel methods and aims to characterize ceramic nanoparticles used as filling inorganic materials for dental composites for esthetical restorations. We have obtained nanometric powders of silica and zirconia/silica. Thermal treatments were conducted at temperatures between 700 °C and 1200 °C for 2 hours. The powders had been analyzed as regards to their mineralogical composition, granulometric distribution and microstructure. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)