Strength, toughness and aging stability of highly-translucent Y-TZP ceramics for dental restorations

Strength, toughness and aging stability of highly-translucent Y-TZP ceramics for dental restorations

Highlights • Lowering Al2 O3 amount, increasing Y2 O3 content and adding 0.2 mol% La2 O3 were all effective to improve the translucency of 3Y-TZP ceramics. • A reduced alumina content however significantly lowered the aging stability. • Increasing Y2 O3 content had the best effect to enhance the tra...

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Veröffentlicht in:Dental materials 2016-12, Vol.32 (12), p.e327-e337
Hauptverfasser: Zhang, Fei, Inokoshi, Masanao, Batuk, Maria, Hadermann, Joke, Naert, Ignace, Van Meerbeek, Bart, Vleugels, Jef
Format: Artikel
Sprache:eng
Schlagworte:
Advanced Basic Science
Aging
Ceramics
Dental Materials
Dental restorations
Dental Stress Analysis
Dentistry
Doping
Hardness
Materials Testing
Mathematical analysis
Mechanical properties
Stability
Tetragonal zirconia polycrystals
Translucency
X-Ray Diffraction
Yttria
Yttria stabilized zirconia
Yttrium
Zirconia
Zirconium
Zirconium dioxide
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Zusammenfassung:Highlights • Lowering Al2 O3 amount, increasing Y2 O3 content and adding 0.2 mol% La2 O3 were all effective to improve the translucency of 3Y-TZP ceramics. • A reduced alumina content however significantly lowered the aging stability. • Increasing Y2 O3 content had the best effect to enhance the translucency and aging stability, but sacrificing the toughness and strength. • Adding 0.2 mol% La2 O3 provided a promising combination of translucency, aging stability and mechanical properties.
ISSN:0109-5641
1879-0097
DOI:10.1016/j.dental.2016.09.025