Abstract
A needle-like apatite-leucite glass-ceramic was prepared in the SiO2-Al2O3-Na2O-K2O-P2O5-F system. Nucleation and crystallization processes were studied in bulk and powdered samples. The crystallization of leucite follows the mechanism of surface crystallization. After the precipitation of NaCaPO4 crystals and another unknown crystal phase, the formation of needle-like apatite is based on a volume nucleation and crystallization process. The mechanism of the formation of needle-like apatite differs to those of apatite precipitation in glass-ceramics. The morphology of needle-like apatite is comparable to that of apatite in natural teeth.
The properties of the glass-ceramic, especially the good chemical durability, the optical properties, as well as mechanical and thermal properties allow glass-ceramic to be used as a main component in a bio-material for the veneering of metal restorations in dentistry.
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References
W. J. O'BRIAN, Dental porcelains. In: "An outline of dental materials and their selection". edited by W.J. O'Brian and G. Ryge, (WB Saunders Comp., Philadelphia, 1978) 180–194.
W. HÖLAND, M. FRANK, M. SCHWEIGER and V. RHEINBERGER, Glastech. Ber. Glass Sci. Technol. 67C (1994) 117–122.
W. HÖLAND, V. RHEINBERGER, M. FRANK and M. SCHWEIGER, Bioceramics 8 Pergamon, Oxford (1995) 299–301.
W. HÖLAND, V. RHEINBERGER and M. FRANK, Proceedings ICG Congress 1998, San Francisco, J. Non-Cryst. Sol. (submitted for publication).
H. NEWESELY, Mechanism and action of trace elements in the mineralization of dental hard tissue, Zyma SA (1972).
L. J. JAHA, S. M. BEST, J. C. KNOWLES, I. REHMAN, J. D. SANTOS and W. BONFIELD, J. Mat. Sci.; Mat. in Med. 8 (1997) 185–191.
U. YUBAO, K. DE Groot, J. DEWIJN, C. P. A. T. KLEIN and S. V. D. MEER, ibid. 5 (1994) 326–331.
R. HILL and W. WOOD, ibid. 6 (1995) 311–318.
T. KOKUBO, Bol. Soc. Esp. Ceram. VID 31-C (1992) 1:119–138.
International Standard ISO 6872, Dental Ceramic, Genf ISO, (1984).
W. HÖLAND, M. FRANK and V. RHEINBERGER, J. Non. Cryst. Sol. 180 (1995) 292–307.
M. BENAMARA, M. V. LASSE, G. LE FLEM and D. HAGENMULLER, Acta Cryst. 39 C (1983) 1483–1485.
W. HÖLAND, W. GÖTZ, G. CARL and W. VOGEL, Cells and Mater. 2 (1992) 105–112.
W. HÖLAND, J. Non-Cryst. Sol 219 (1997) 192–197.
B. SCHMIDHAUSER, Diploma degree, ETH Zürich (1997).
D. R. UHLMANN, In: W.D. Kingery H.K. Bowen and D.R. Uhlmann. "Introduction to ceramics". (John Wiley & Sons, New York, 1976) 347–348.
W. HÖLAND, Phosphorus Res. Bull 6 (1996) 111–114.
R. MÑLLER, L. A. ABU-HILAL, S. REINSCH and W. HÖLAND, J. Mat. Sci. 34 (1999) 65–69.
British standard, BS 5612, Dental Porcelain (1978).
R. MÑSSNER, Ivoclar Ltd. internal report (1997).
I. SZABO, B. NAGY, G. VÖLKSCH and W. HÖLAND, J. Non-Cryst. Sol (to be published).
R. Z. LE GEROS and J. P. LE GEROS, In "An introduction to bioceramics", L.L. Hench and J. Wilson, edited by (World Scientific, Singapore, 1993) 139–180.
A. T. SÄNGER and W. F. KUHS, Z. Krist. 199 (1992) 123–148.
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Ho¨land, W., Rheinberger, V., Wegner, S. et al. Needle-like apatite-leucite glass-ceramic as a base material for the veneering of metal restorations in dentistry. Journal of Materials Science: Materials in Medicine 11, 11–17 (2000). https://doi.org/10.1023/A:1008977416834
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DOI: https://doi.org/10.1023/A:1008977416834