Hostname: page-component-77c89778f8-5wvtr Total loading time: 0 Render date: 2024-07-16T22:13:51.130Z Has data issue: false hasContentIssue false
  • English
  • Français

Slow Crack Growth in Dental Composites

Published online by Cambridge University Press:  22 February 2011

G. M. Montes-G. ,
R. A. Draughn  and
T. H. Simpson Jr
G. M. Montes-G.
Affiliation:
Medical University of South Carolina, Dept. of Materials Science, 171 Ashley Avenue, Charleston, SC 29425
R. A. Draughn
Affiliation:
Medical University of South Carolina, Dept. of Materials Science, 171 Ashley Avenue, Charleston, SC 29425
T. H. Simpson Jr
Affiliation:
Medical University of South Carolina, Dept. of Materials Science, 171 Ashley Avenue, Charleston, SC 29425
Get access

Abstract

The fracture properties of selected commercial composite dental restorative materials and a model composite system were studied to determine the influences of the reinforcing phase, exposure to water, and particle/polymer adhesion on crack propagation. The content of inorganic fillers ranged from 36 to 62 volume percent. In the model system the polymer phase approximated that of the commercial products, a constant size distribution of quartz fillers was used, and polymer/particle adhesion was varied. The double torsion test method was employed to measure relationships between applied stress intensity factor and velocity of crack propagation during stable crack growth. In all systems, cracks propagated through regions of high stress concentration at the low end of the velocity range studied (10−7 m/sec to 10−3 m/sec). Wet materials fractured at lower stress intensities than dry materials at all velocities. At high velocities unstable (stick-slip) growth occurred in dry materials with strong filler/matrix interfaces and in wet specimens with initially strong interfaces and less than 41 volume percent filler. In wet conditions, materials with poorly bonded fillers fractured by slow crack growth at stress intensities 10% to 30% below the levels of composites with strong interfaces.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 55: Symposium G – Biomedical Materials , 1985 , 97
Copyright
Copyright © Materials Research Society 1986

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. Lutz, F., Phillips, R.W., Roulet, J.F., and Setcos, J.C., J. Dent. Res. 63 (6), 914–920 (1984).CrossRefGoogle Scholar
2. Lambrechts, P., Braem, M., and Vanherle, G., in Posterior Composite Resin Dental Restorative Materials, edited by Vanherle, G. and Smith, D.C. (3M Co., St. Paul, 1985) pp. 521–540.Google Scholar
3. Roberts, J.C., Powers, J.M., and Craig, R.G., Wear 47, 139–146 (1978).CrossRefGoogle Scholar
4. DeVries, K.L., Knutson, M., Draughn, R.A., Reichart, T.L., and Koblitz, F.F., in Biomedical and Dental Applications of Polymers, edited by Gebelein, C.G. and Koblitz, F.F. (Plenum Press, New York, 1981) pp. 459–482.CrossRefGoogle Scholar
5. Pilliar, R.M., Smith, D.C., Phillips, D., and Damji, M., presented at the 1981 IADR Meeting, Chicago, IL, 1981. Abstract No. 238, J. Dent. Res. 60 (1981).Google Scholar
6. Wu, W. and McKinney, J.E., J. Dent. Res. 61 (10), 1180–1183 (1982).CrossRefGoogle Scholar
7. McKinney, J.E. and Wu, W., J. Dent. Res. 64 (11), 1326–1331 (1985).CrossRefGoogle Scholar
8. Roberts, J.C., Powers, J.M., and Craig, R.G., J. Dent. Res., 56 (7), 748–753 (1977).CrossRefGoogle Scholar
9. Koblitz, F.F., Luna, V.R., Glenn, J.F., DeVries, K.L., and Draughn, R.A., Polymer Eng. Sci. 19 (9), 607–608 (1979).CrossRefGoogle Scholar
10. Lloyd, C.H. and lannetta, R.V., J. Oral Rehab. 9 55–66 (1982).CrossRefGoogle Scholar
11. Lloyd, C.H. and Mitchell, L., J. Oral Rehab., 11 257–272 (1984).CrossRefGoogle Scholar
12. Pilliar, R.M., Maric, B., Smith, D.C., and Zins, D.J., Presented at the 1983 AADR meeting, Cincinnati, OH, 1983. Abstract No. 1044, J. Dent. Res. 62 (1983).Google Scholar
13. Goldman, M., J. Biomed. Mater. Res., 19, 771–783 (1985).CrossRefGoogle Scholar
14. Bowen, R.L. and Rodriguez, M.S., J. Amer. Dent. Assoc. 64, 378–387 (1962).CrossRefGoogle Scholar
15. Evans, A.G., Phil. Mag. 27 1327–1344 (1972).CrossRefGoogle Scholar
16. Lange, F.F., in Composite Materials 5, Fracture and Fatigue, edited by Broutman, L.J. (Academic Press, New York, 1974), pp. 1–44.Google Scholar
17. Bucknall, C.B. in Advances in Polymer Science 27, edited by Ferry, J.D. (Springer-Verlag, New York, 1978), pp. 121–148.Google Scholar
18. Young, R.J. and Beaumont, P.W.R., J. Mater. Sci. 10, 1343–1350 (1975); 12, 684–692 (1977).CrossRefGoogle Scholar
19. Brown, S.K., Brit. Polym. J. 12, 24–30 (1980); 14, 1–13 (1982).CrossRefGoogle Scholar
20. Moloney, A.C., Kausch, H.H., and Steiger, H.R., J. Mater. Sci. 18, 208–216 1983); 19, 1125–1130 (1984).CrossRefGoogle Scholar
21. Spandoudakis, J. and Young, R.G., J. Mater. Sci., 19, 473–486 (1984).CrossRefGoogle Scholar
22. Kinloch, A.J. and Williams, J.G., J. Mater. Sci., 15 987–996 (1980).CrossRefGoogle Scholar
23. Williams, J.G., Fracture Mechanics of Polymers (John Wiley & Sons, New York, 1984).Google Scholar
24. Broutman, L.J. and Sahu, S., Proc. of 26th Annual Tech. Conf. Reinforced Plastics Div., SPI, 14–C 1–4 (1971).Google Scholar
25. Spanoudakis, J. and Young, R.J., J. Mater. Sci. 19, 487–496 (1984).CrossRefGoogle Scholar
26. Ruyter, J.E. and Sjovik, I.J., Acta Odont. Scand. 39, 133–146 (1981).CrossRefGoogle Scholar
27. Williams, D.P. and Evans, A.G., J.T. Eva. 1, 264–270 (1973).Google Scholar