In this study, curing shrinkage stress development was monitored in a glass-ionomer and a BisGMA composite luting cement adhesively placed at film thicknesses ranging from 30 to 200 μm. The nature and magnitude of the stress development depended greatly on the formulation and film thicknesses of the lute. The thicker the layer, the faster the stress development in the glass ionomer and the slower in the composite. The contraction stress had a detrimental effect on the cohesive strength of the glass ionomer and on the adhesive strength of the composite cement.
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References
1.
Bausch, J.R.; De Lange, C.; Davidson, C.L.; Peters, A.; and De Gee, A.J. (1982): Clinical Significance of Polymerization Shrinkage of Composite Resins, J Prosthet Dent48:59-67.
2.
Bowen, R.L.; Nemoto, K.; and Rapson, J.E. (1983): Adhesive Bonding of Various Materials to Hard Tooth Tissues: Forces Developing in Composite Materials During Hardening, J Am Dent Assoc106:475-477.
3.
Davidson, C.L. and De Gee, A.J. (1984): Relaxation of Polymerization Contraction Stresses by Flow in Dental Composites, J Dent Res63:146-148.
4.
Davidson, C.L.; De Gee, A.J.; and Feilzer, A.J. (1984): The Competition between the Composite-Dentin Bond Strength and the Polymerization Contraction Stress, J Dent Res63:1396-1399.
5.
Feilzer, A.J.; De Gee, A.J.; and Davidson, C.L. (1987): Setting Stress in Composite Resin in Relation to Configuration of the Restoration, J Deni Res66:1636-1639.
6.
Feilzer, A.J.; De Gee, A.J.; and Davidson, C.L. (1989): Increased Wall-to-Wall Curing Contraction in Thin Bonded Resin Layers, J Dent Res68:48-50.
7.
Hegdahl, T. and Gjerdet, N.R. (1977): Contraction Stresses of Composite Resin Filling Materials, Acta Odontol Scand35:191-195.
8.
Van Zeghbroeck, L. (1989): Bond Capacity of Adhesive Luling Cements, Thesis, University of Louvain, Belgium, pp. 99-121.
9.
Van Zeghbroeck, L.; Davidson, C.L.; and De Clercq, M. (1989): Cohesive Failure due to Contraction Stress in Glass Ionomer Luting Cements, J Dent Res68:1014, Abst. No. 1180.
