Analysis of Stress and Fracture Strength of Zirconia Implants after Cyclic Loading

The aim of this study was to manufacture a new zirconia implant (Y-TZP) and to evaluate the fracture strength and stresses generated after cyclic loading compared to titanium implants. Thirty-three zirconia and titanium implants were fabricated. The stress generated around the implants was observed...

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Veröffentlicht in:	Materials research (São Carlos, São Paulo, Brazil) São Paulo, Brazil), 2015-10, Vol.18 (5), p.1082-1088
Hauptverfasser:	Cruvinel, Diogo Rodrigues, Silveira, Renata Espíndola, Galo, Rodrigo, Alandia-Román, Carla Cecilia, Pires-de-Souza, Fernanda de Carvalho Panzeri, Panzeri, Heitor
Format:	Artikel
Sprache:	eng
Schlagworte:	Crack propagation cyclic loading ENGINEERING, CHEMICAL Fatigue (materials) Fatigue failure Fracture strength implant MATERIALS SCIENCE, MULTIDISCIPLINARY METALLURGY & METALLURGICAL ENGINEERING photoelasticity Stresses Surgical implants Titanium Yttria-doped zirconia Zirconium dioxide
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Beschreibung
Zusammenfassung:	The aim of this study was to manufacture a new zirconia implant (Y-TZP) and to evaluate the fracture strength and stresses generated after cyclic loading compared to titanium implants. Thirty-three zirconia and titanium implants were fabricated. The stress generated around the implants was observed by photoelastic analysis. The implants were then separated into groups (n = 10): Control (no treatment), mechanical fatigue and thermomechanical fatigue. All groups were submitted to a single cantilever flexure test to measure the material fracture strength. The results (2-way ANOVA, Bonferroni test, p
ISSN:	1516-1439 1980-5373 1516-1439 1980-5373
DOI:	10.1590/1516-1439.010815