Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-23T16:36:23.907Z Has data issue: false hasContentIssue false
  • English
  • Français

Wear of hydroxyapatite sliding against glass-infiltrated alumina

Published online by Cambridge University Press:  31 January 2011

Mitjan Kalin ,
Bernard Hockey  and
Said Jahanmir
Mitjan Kalin
Affiliation:
University of Ljubljana, Center for Tribology and Technical Diagnostics, SI-1000 Ljubljana, Slovenia
Bernard Hockey
Affiliation:
Ceramics Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
Said Jahanmir
Affiliation:
Ceramics Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
Get access

Abstract

This work reports on the processes involved in the wear of hydroxyapatite sliding against slip-cast, glass-infiltrated alumina. Synthetic hydroxyapatite was used as a model material representing tooth enamel, while the alumina used was designed for tooth restorations. The wear tests were conducted in distilled water using a pin-on-disk tribometer under contact conditions that mimic the oral environment. To investigate the wear process for this material system, the surfaces of the hydroxyapatite “pin” and the alumina “disk” were examined by scanning electron microscopy and atomic force microscopy. Transmission electron microscopy was used to examine wear debris fragments collected from the hydroxyapatite wear scar and, for comparison, the bulk structure of the pin and crushed fragments from an unworn pin. Wear tracks on glass-infiltrated alumina showed only minor damage consisting of removal of glass from intergranular pockets in this material. In contrast, the hydroxyapatite wear surfaces were covered by an adhered debris layer, which obscured the rough, underlying surface. When dried, this adhered layer was found to contain both single-crystal and polycrystalline hydroxyapatite fragments, together with porous amorphous particulates, containing Ca, P, and O as major elements and Al and La as minor constituents. The composition of this amorphous wear product suggests a tribochemical reaction of hydroxyapatite and infiltrated alumina with water. The wear process, therefore, consists of material removal by fracture and deformation of the hydroxyapatite, followed by mixing of the crystalline fragments with the reaction products and the glass-infiltrate to form a uniform debris layer on the hydroxyapatite wear surface. The effects of this surface layer on wear are considered to include moderation of the local contact stresses and control of the immediate environment under which wear occurs. Our wear data, represented in terms of the wear factor, are found to be consistent with published data on the wear of tooth enamel sliding against different types of ceramic restorations.

Type
Articles
Information
Journal of Materials Research , Volume 18 , Issue 1 , January 2003 , pp. 27 - 36
Copyright
Copyright © Materials Research Society 2003

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Kelly, J.R., Mater. Sci. 27, 443 (1997).Google Scholar
2.Rosenblum, M.A. and Schulman, A., JADA 128, 297 (1997).Google Scholar
3.Christensen, G.J., JADA 128, 1453 (1997).Google Scholar
4.Kelly, J.R., Nishimura, I., and Campbell, S.D., J. Prosthetic Dentistry 75, 18 (1996).Google Scholar
5.Monasky, G.E. and Taylor, D.F., J. Prosthetic Dentistry 25, 299 (1971).CrossRefGoogle Scholar
6.Wiley, M.G., J. Prosthetic Dentistry 61, 133 (1989).CrossRefGoogle Scholar
7.DeLong, R., Douglas, W.H., Sakaguchi, R.L., and Pintado, M.R., Dent. Mater. 2, 214 (1986).CrossRefGoogle Scholar
8.Seghi, R.R., Rosensteil, S.F., and Bauer, P., J. Dent. Res. 70, 221 (1991).Google Scholar
9.DeLong, R., Sasik, C., Pintado, M.R., and Douglas, W.H., Dent. Mater. 5, 266 (1989).CrossRefGoogle Scholar
10.Ramp, M.H., Suzuki, S., Cox, C.F., Lacefield, W.R., and Koth, D.L., J. Prosthetic Dentistry 77, 523 (1997).Google Scholar
11.Suzuki, S., Suzuki, S.H., and Cox, C.F., JADA 127, 74 (1996).Google Scholar
12.Ratledge, D.K., Smith, B.G.N., and Wilson, R.F., J. Prosthetic Dentistry 72, 194 (1994).CrossRefGoogle Scholar
13.Palmer, D.S., Barco, M.T., Pelleu, G.B., Jr., and McKinney, J.E., J. Prosthetic Dentistry 65, 192 (1991).CrossRefGoogle Scholar
14.Hudson, J.D., Goldstein, G.R., and Georgescu, M., J. Prosthetic Dentistry 74, 1752 (1995).CrossRefGoogle Scholar
15.Georges, L.A. and Eichmiller, F.C., in Challenges Ceramic Product Development, Manufacture, and Commercialization Vol. 66, edited by Gosh, A., Barks, R., and Rusin, R. (Am. Ceram. Soc., Westerville, OH, 1996), p. 181.Google Scholar
16.Larsen-Basse, J., in Friction and Wear of Ceramics, edited by Jahanmir, S. (Marcel Dekker, New York, 1994), p. 99.Google Scholar
17.Kalin, M., Jahanmir, S., and Ives, L.K., Wear 252, 679 (2002).Google Scholar
18.Rootare, H.M., Powers, J.M., and Craig, R.G., J. Dent. Res. 57, 777 (1978).CrossRefGoogle Scholar
19.Akao, M., Aoki, H., and Kato, K., J. Mater. Sci. 16, 809 (1981).CrossRefGoogle Scholar
20.Xu, H.H.K., Smith, D.T., Jahanmir, S., Romberg, E., Kelly, J.R., Thompson, V.P., and Rekow, E.D., J. Dent. Res. 77, 472 (1998).CrossRefGoogle Scholar
21.Hornberger, H., Marquis, P.M., Christiansen, S., and Strunk, H.P., J. Mater. Res. 11, 855 (1996).CrossRefGoogle Scholar
22.Jung, Y-G., Peterson, I.M., Pajares, A., and Lawn, B.R., J. Dent. Res. 78, 804 (1999).CrossRefGoogle Scholar
23.Pro¨bster, L., J. Oral Rehab. 23, 147 (1996).Google Scholar
24.DeLong, R. and Douglas, W.H., IEEE Trans. on Biomedical Eng. 38, 339 (1991).CrossRefGoogle Scholar
25.ASTM G99, Standard test method for wear testing with a pin-ondisk apparatus. Annual Book of ASTM Standards, West Conshohocken, PA, 03.02, p. 401 (1999).Google Scholar
26.Peterson, M.B., in Wear Control Handbook, edited by Peterson, M.B., Winer, W.O. (American Society of Mechanical Engineers, New York, 1980), p. 427.Google Scholar
27.Bansal, N.P. and Doremus, R.H., Handbook of Glass Properties (Academic Press, San Diego, CA, 1986).Google Scholar
28.McDowell, H., Gregory, T.M., and Brown, W.E., J. Res. NBS (Phys. and Chem.) 81A, 273 (1977).Google Scholar