Aging Behavior of Commercial and Synthesized Dental Y-TZP Ceramics

Anelyse Arata; Tiago Moreira Bastos Campos; João Paulo Barros Machado; Walter Kenji Yoshito; Valter Ussui; Nelson B. Lima; Rubens Nisie Tango; Dolores Ribeiro Ricci Lazar

doi:10.4028/www.scientific.net/MSF.820.297

Paper Titles

Thermocraking of Sunflower Oil over Acid Vermiculite
p.274

The Influence of Dopants in the Grain Size of Alumina - A Review
p.280

Effect of Sonochemical Technique on the Morphology and Crystallinity of Hydroxyapatite Nanoparticles
p.287

Electrochemical Impedance Spectroscopy: Evaluation of Drug Delivery System of Alpha-Tricalcium Phosphate Cement
p.293

Aging Behavior of Commercial and Synthesized Dental Y-TZP Ceramics
p.297

Evaluation of the Cytotoxicity of NiFe₂O₄/SiO₂ Hybrid Nanoparticles Aiming its Application as Drug Carriers
p.303

Production of Hydroxyapatite/Polyhydroxibutirate Based Composites for Biomaterials Applications
p.309

Evaluation of Morphology and Roughness of the Surface of a Ceramic Based on Lithium Disilicate, after Conditioning with Acid Hydrofluoric the 5% and 10%
p.315

Evaluation of Mechanical Properties of Composite Materials Used in Dentistry Varying the Inorganic Composition
p.320

HomeMaterials Science ForumMaterials Science Forum Vol. 820Aging Behavior of Commercial and Synthesized...

Aging Behavior of Commercial and Synthesized Dental Y-TZP Ceramics

Abstract:

Yttria-stabilized tetragonal zirconia polycrystals (Y-TZP) is used for dental prosthodontics, however, it can present accelerated tetragonal to monoclinic phase transformation in oral environment. The aim of this study was to compare the behavior of a Y-TZP synthesized in laboratory by the coprecipitation method to a commercial Y-TZP, after hydrothermal aging in pressurized reactor (150°C/ 35 hours). The discs were sintered at 1520°C for two hours. The kinetics curve of phase transformation was determined through the data collect by XRD diffractograms treated by the Rietveld method. The experimental and commercial control groups did not present monoclinic phase. After 35 hours of aging, the experimental group presented 69% of monoclinic phase compared to 67% for the commercial group. Scanning electron microscopy and atomic force microscopy images suggested that the commercial group presented heterogeneity of grain size and that the experimental group was more homogeneous. All groups presented superficial degradation process.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volume 820)

Pages:

297-302

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.820.297

Citation:

Cite this paper

Online since:

June 2015

Authors:

Anelyse Arata*, Tiago Moreira Bastos Campos, João Paulo Barros Machado, Walter Kenji Yoshito, Valter Ussui, Nelson B. Lima, Rubens Nisie Tango, Dolores Ribeiro Ricci Lazar

Keywords:

Coprecipitation, Degradation, Powder Synthesis, Rietveld Method, Y-TZP

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] M.A. Rosenblum, A. Schulman: J Am Dent Assoc. Vol. 128 (1997), p.297.

Google Scholar

[2] P.F. Manicone, P. Rossi Iommetti, L Raffaelli: J. Dent. Vol. 35 (2007), p.819.

Google Scholar

[3] S. Deville, L. Gremillard, J. Chevalier, G Fantozzi: J. Biomed. Mater. Res. B Appl. Biomater. Vol. 72 (2005), p.239.

Google Scholar

[4] J. Chevalier, B. Calles, J.M. Drouin: J Am Ceram Soc. Vol. 82 (1999), p.2150.

Google Scholar

[5] D.R.R. Lazar, M.C. Bottino, M. Ozcan, L.F. Valandro, R. Amaral, V. Ussui, A.H.A. Bressiani: Dental Mater. Vol. 24 (2008), p.1876.

DOI: 10.1016/j.dental.2008.04.002

Google Scholar

[6] A.R. Arakaki, W.K. Yoshito, V. Ussui, D.R.R. Lazar: Mater. Sci. Forum Vols. 660-661 (2010), p.983.

DOI: 10.4028/www.scientific.net/msf.660-661.983

Google Scholar

[7] R.H.L. Garcia, V. Ussui, N.B. De Lima, E.N. Muccillo, D.R.R. Lazar: J. Alloys Comp. Vol. 486 (2009), p.747.

Google Scholar

[8] A. Arata: Evaluation methods analysis of crystallographic phase transformation on Y-TZP after in vitro aging. Master (Dissertation). São Jose dos Campos, 2012. Universidade Estadual Paulista (UNESP). (SP) (In Portuguese).

Google Scholar