Fluorescence and physical properties of thulium and erbium co-doped dental zirconia
| Autor: | Kazumichi Wakabayashi, Hisataka Nishida, Tohru Sekino, Akiyo Kawano, Shinya Okamura, Shingo Tamiya, Nakamura Takashi |
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| Rok vydání: | 2021 |
| Předmět: |
Ceramics
Materials science Trace Amounts Surface Properties 0206 medical engineering chemistry.chemical_element 02 engineering and technology Esthetics Dental Erbium 03 medical and health sciences Tetragonal crystal system Dental Materials 0302 clinical medicine Fracture toughness Flexural strength Materials Testing Cubic zirconia Yttrium Composite material General Dentistry 030206 dentistry 020601 biomedical engineering stomatognathic diseases Thulium chemistry Vickers hardness test Ceramics and Composites Zirconium |
| Zdroj: | Dental materials journal. 40(5) |
| ISSN: | 1881-1361 |
| Popis: | The fluorescence and physical properties of thulium and erbium co-doped dental zirconia were investigated. The high-translucency yttria-stabilized dental zirconia specimens co-doped with Tm2O3 powder 0.8 wt% and Er2O3 powder at proportions from 0.1 to 0.8 wt% were used. The specimens co-doped with Tm2O3 powder 0.8 wt% and Er2O3 from 0.3 to 0.5 wt% exhibited the fluorescence similar to that of natural tooth. All the specimens had a tetragonal peak and no major change in the Vickers hardness, fracture toughness and bending strength on addition of Tm2O3 and Er2O3. These results suggest that the method of co-doping trace amounts of Tm2O3 and Er2O3 into high-translucency dental zirconia powder can effectively improve the esthetics of zirconia monolithic fixed dental prothesis. |
| Databáze: | OpenAIRE |
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