| Autor: |
Takashi NAKAMURA, Shinya OKAMURA, Hisataka NISHIDA, Akiyo KAWANO, Shingo TAMIYA, Kazumichi WAKABAYASHI, Tohru SEKINO |
| Předmět: |
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| Zdroj: |
Dental Materials Journal; 2021, Vol. 40 Issue 5, p1080-1085, 6p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
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