Effect of coloring with various metal oxides on the microstructure, color, and flexural strength of 3Y-TZP

Journal of Biomedical Materials Research. Part B, Applied Biomaterials
K ShahI L Denry

Abstract

The purpose of this study was to investigate the effect of cerium and bismuth coloring salts solutions on the microstructure, color, flexural strength, and aging resistance of tetragonal zirconia for dental applications (3Y-TZP). Cylindrical blanks were sectioned into disks (2-mm thick, 25-mm in diameter) and colored by immersion in cerium acetate (CA), cerium chloride (CC), or bismuth chloride (BC) solutions at 1, 5, or 10 wt %. The density, elastic constants, and biaxial flexural strength were determined after sintering at 1350 degrees C. The crystalline phases were analyzed by X-ray diffraction before and after aging in autoclave for 10 h. The results showed that the mean density of the colored groups was comparable with that of the control group (6.072 +/- 0.008 g/cm(3)). XRD confirmed the presence of tetragonal zirconia with a slight increase in lattice parameters for the colored groups. A perceptible color difference was obtained for all groups (DeltaE* = 2.57 +/- 0.48 to 14.22 +/- 0.98), compared with the control. The mean grain size increased significantly for the groups colored with CC or CA at 10 wt %, compared with the control group (0.318 +/- 0.029 mm). The mean biaxial strength of CA1%, CA5%, and BC1% groups was no...Continue Reading

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Citations

Jun 15, 2011·Journal of Dental Research·L RenY Zhang
May 24, 2014·Dental Materials : Official Publication of the Academy of Dental Materials·Hee-Kyung Kim, Sung-Hun Kim
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Sep 19, 2015·Journal of the Mechanical Behavior of Biomedical Materials·K NakamuraU Örtengren
Nov 2, 2013·The Journal of Prosthetic Dentistry·Gianluca PanizHiroshi Hirayama
Jan 10, 2012·Clinical Implant Dentistry and Related Research·Wael AttJoerg Rudolf Strub
Jul 16, 2013·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Kun YuanJi-Hua Chen
Aug 16, 2014·Lasers in Surgery and Medicine·Peter RechmannJohn D B Featherstone
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