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- Title
Preparation and color analysis of tooth-like yttria stabilized tetragonal zirconia polycrystal.
- Authors
Gao Yan; Zhang Fu-qiang; Huang Hui; Gui Lin-Hua
- Abstract
PURPOSE: To develop six kinds of tooth-like yttria stabilized tetragonal zirconia polycrystal(Y-TZP) ceramic blocks. METHODS: Six kinds(Sl,S2,S3,S4,S5,S6) of tooth-like yttria stabilized tetragonal zirconia polycrystal (Y-TZP) were made by introdticing internal colorating technology, and the color gauged with shade-eye chromatometry instrument was compared between Vita classical shade selection and the 6 kinds of tooth-like ceramic blocks. RESULTS: The color of six kinds of tooth-like TZP was presented in the CIELab system. The value of L* was from 68.8-80.37,a* was from - 1.0-0.9,and b* was from 12.2-17.93, which was covered by Vita classical shade selecting and Chinese tooth color parameter. CONCLUSIONS: Rare earth and transition element as colorants can endow TZP with tooth-like color with different proportions. It is possible to develop tooth-like Y-TZP by adding minority rare earth oxides (Pr6O11,CeO2,Er2O3, MnO2).
- Subjects
POLYCRYSTALS; ZIRCONIUM oxide; TRANSITION metals; RARE earth oxides; COLOR
- Publication
Shanghai Journal of Stomatology, 2010, Vol 19, Issue 4, p427
- ISSN
1006-7248
- Publication type
Article