Water Sorption and Filler Characteristics of Composites for Use in Posterior Teeth

Abstract

The purpose of this investigation was to determine the water sorption and solubility, as well as the filler composition and extent of chemical degradation in water, of eight different posterior composites. With one exception, the materials with the largest quantity of fillers had the least water sorption and solubility after three months in water at 37°C. The emission spectroscopy results showed that silicon was the major element in all the fillers except one, which had both silicon and strontium as major elements. Other components registered in quantities of 5-10 wt-% were barium, aluminum, zinc, and zirconium. The leaching of inorganic ions into water from the fillers varied depending on filler composition and filler treatment.

Get full access to this article

View all access options for this article.

References

Bowen, R.L. and Reed, L.E. (1976): Semiporous Reinforcing Fillers for Composite Resins: I. Preparation of Provisional Glass Formulations, J Dent Res 55 :738-747.

Braden, M. ; Causton, E.E. ; and Clarke, R.L. (1976): Diffusion of Water in Composite Filling Materials , J Dent Res 55:730-732.

Braden, M. and Clarke, R.L. (1984): Water Absorption Characteristics of Dental Microfine Composite Filling Materials, Biomater 5:369-372.

Draughn, R.A. (1981): Effects of Temperature on Mechanical Properties of Composite Dental Restorative Materials, J Biomed Mater Res 15:489-495.

Fan, P.L. ; Edahl, A. ; Leung, R.L. ; and Stanford, J.W. (1985): Alternative Interpretations of Water Sorption Values of Composite Resins, J Dent Res 64 :78-80.

Goldberg, A.J. ; Rydinge, E. ; Santucci, E.A. ; and Racz, W.B. (1984): Clinical Evaluation Methods for Posterior Composite Restorations, J Dent Res 63:1387-1391.

Groeningen, G. and Arends, J. (1982): In-Vivo-Abrasion von Composite-Füllungen: Eine quantitative Untersuchung, Quintessenz 33:843-849.

Heymann, H.O. ; Wilder, A.D. ; May, K.N. ; and Leinfelder, K.F. (1986): Two-Year Clinical Study of Composite Resins in Posterior Teeth, Dent Mater 2:37-41.

Kusy, R.P. and Leinfelder, K.F. (1977): Pattern of Wear in Posterior Composite Restorations, J Dent Res 56:544.

10.

Leinfelder, K.F. ; Sluder, T.B. ; Sockwell, C.L. ; Strickland, W.D. ; and Wall, J.T. (1975): Clinical Evaluation of Composite Resins as Anterior and Posterior Restorative Materials, J Prosthet Dent 33:407-416.

11.

Mabie, C.P. and Menis, D.L. (1978): Microporous Glassy Fillers for Dental Composites , J Biomed Mater Res 12:435-472.

12.

Roulet, J.-F. and Walti, C. (1984): Influence of Oral Fluid on Composite Resin and Glass-Ionomer Cement, J Prosthet Dent 52:182-189.

13.

Ruyter, I.E. and Ysæd, H. (1986): Composites for Use in Posterior Teeth: Composition and Conversion, J Biomed Mater Res 20 (in press).

14.

Söderholm, K.-J. (1981): Degradation of Glass Filler in Experimental Composites , J Dent Res 60:1867-1875.

15.

Söderholm, K.-J. (1983); Leaking of Fillers in Dental Composites, J Dent Res 62:126-130.

16.

Soderholm, K.-J. ; Zigan, M. ; Ragan, M. ; Fischlschweiger, W. ; and Bergman, M. (1984): Hydrolytic Degradation of Dental Composites, J Dent Res 63:1248-1254.

17.

Van Dijken, J.W.V. ; Ruyter, I.E. ; and Holland, R.I. (1986): Porosities in Posterior Composite Resins, Scand J Dent Res 95 (in press).

18.

Wu, W. and McKinney, J.E. (1982): Influence of Chemicals on Wear of Dental Composites , J Dent Res 61:1180-1183.

19.

Wu, W. ; Toth, E.E. ; Moffa, J.F. ; and Ellison, J.A. (1984): Subsurface Damage Layer of in vivo Worn Dental Composite Restorations, J Dent Res 63:675-680.

20.

Ysæd, H. and Ruyter, I.E. (1986): Composites for Use in Posterior Teeth: Mechanical Properties Tested Under Dry and Wet Conditions, J Biomed Mater Res 20:261-271.