Marginal Sealing of Curing Contraction Gaps in Class V Composite Resin Restorations

Abstract

When one uses composite resins, the curing contraction, the stiffness of the material, and the strength of the vulnerable dentinal bond are important factors in determining the marginal adaptation of the restoration. Calculations based on these intrinsic material properties have indicated that both bulk placement and incremental placement of the restorative material in the cervical cavity inevitably lead to marginal gap formation. Sealing of this gap with an unfilled low-viscosity resin, directly after the composite resin is cured, may lead to perfectly closed restoration margins, provided that composites with low linear curing contraction and low Young's modulus are used. These conditions were ezperimentally shown to be valid for laboratory and clinical situations.

Get full access to this article

View all access options for this article.

References

Braem, M. ; Davidson, C.L. ; Vanherle, G. ; Vandoren, V. ; and Lambrechts, P. (1987): The Relationship between Test Methodology and Elastic Behavior of Composites, J Dent Res 66:1036-1039.

Crim, G.A. and Chapman, K.W. (1986): Effect of Placement Techniques on Microleakage of a Dentin-bonded Composite Resin, Quint Int 17:21-24.

Davidson, C.L. (1986): Resisting the Curing Contraction with Adhesive Composites, J Prosthet Dent 55:446-447.

Davidson, C.L. and De Gee, A.J. (1984): Relaxation of Polymerization Contraction Stresses by Flow in Dental Composites, J Dent Res 63:146-148.

Davidson, C.L. ; De Gee, A.J. ; and Feilzer, A.J. (1986): The Competition between the Composite-Dentin Bond Strength and the Polymerization Contraction Stress, J Dent Res 63:1396-1399.

Eick, J.D. and Welch, F.H. (1986): Polymerization Shrinkage of Posterior Composite Resins and its Possible Influence on Postoperative Sensitivity, Quint Int 17:103-111.

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 Dent Res 66:1636-1639.

Feilzer, A.J. ; De Gee, A.J. ; and Davidson, C.L. (1988): Curing Contraction of Composite Restoratives and Glass Ionomer Cements, J Prosthet Dent 59:297-301.

Hansen, E.K. (1986): Effect of Cavity Depth and Application Technique on Marginal Adaptation of Resins in Dentin Cavities, J Dent Res 65:1319-1321.

10.

Harris, R. ; Phillips, R.W. ; and Swartz, M.L. (1974): An Evaluation of Two Resin Systems for Restoration of Abraded Areas, J Prosthet Dent 31:537-546.

11.

Komatsu, M. and Finger, W. (1986): Dentin Bonding Agents: Correlation of Early Bond Strength with Margin Gaps, Dent Mat 2:257-262.

12.

Kulmann, W. (1985): Dentinhaft-Komposit und Glasionomer-Zement zur Restauration zervikaler Lasionen, Dtsch Zahnärztl Z 40:922-926.

13.

Lutz, F. ; Kvejei, J. ; and Oldenburg, T.R. (1986): Elimination of Polymerization Stresses at the Margins of Posterior Composite Resin Restorations: a New Restorative Technique , Quint Int 17:777-784.

14.

McLean, J.W. ; Powis, D.R. ; Prosser, H.J. ; and Wilson, A.D. (1985): The Use of Glass Ionomer Cements in Bonding Composite Resins to Dentin, Br Dent J 158:410-414.

15.

Oden, A. and Ilo, G. (1986): Tensile Bond Strength of Dentin Adhesives, Dent Mat 2:207-213.

16.

Podshadley, A.G. ; Gullett, C.E. ; and Binkley, T.K. (1985): Interface Strength of Incremental Placement of Visible Light Cured Composite, J Am Dent Assoc 110:932-934.

17.

Seichter, U. (1986): REM-Untersuchungen über den Zervikalen Randspalt bei Komposit-Restaurationen mit Haftvermittlern, Dtsch Zahnärztl Z 41:739-742.

18.

Schmid, H. ; Lutz, F. ; and Hirsbrunner, E. (1986): Klasse-V-Füllungen mit Super-Bond. 2-Jahres-Resultate , Schweiz Monatschr Zahnmed 96:679-687.

19.

Torstenson, B. ; Brännström, M. ; and Mattson, B. (1985): A New Method for Sealing Composite Resin Contraction Gaps in Lined Cavities, J Dent Res 64:450-453.

20.

Vanherle, G. ; Verschueren, M. ; Lambrechts, P. ; and Braem, M. (1986): Clinical Investigation of Dental Adhesive Systems. Part I. In vivo Study, J Prosthet Dent 55:157-163.