The use of adhesive resin composites for restoration of Class V lesions often results in cervical marginal gap formation due to polymerization contraction. In this laboratory study, flexible linings applied between the bonding agent and the bulk restorative appeared to preserve the marginal integrity of Class V restorations during curing. Measurements of the polymerization contraction stress showed 20 to 50% relief due to various flexible intermediate materials. Apparently, reduction of the total stiffness by application of an intermediate layer can render the total restoration sufficiently flexible to compensate for that part of the stress that would otherwise exceed the bond strength.
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References
1.
Braem, M.; Davidson, C.L.; Vanherle, G.; Van Doren, V.; and Lambrechts, P. (1987): The Relationship between Test Methodology and Elastic Behaviour of Composites, J Dent Res66:1036-1039.
2.
Crim, G.A. (1987): Assessment of Microleakage of 12 Restorative Systems , Quint Int17:21-24.
3.
Crim, G.A. (1988): Effect of Composite Resin on the Microleakage of Scotchbond and Gluma, Am J Dent1:215-216.
4.
Davidson, C.L.; De Gee, A.J.; and Feilzer, A.J. (1984): The Competition between the Compositc-Dentin Bond Strength and the Polymerization Contraction Stress, J Dent Res63:1396-1399.
5.
Davidson, C.L. and Kemp-Scholte, C.M. (1989): Shortcomings of Composite Resins in Class V Restorations, J Esthet Dent1:1-4.
6.
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 Res66:1636-1639.
7.
Feilzer, A.J.; De Gee, A.J.; and Davidson, C.L. (1988): Relaxation of Polymerization Contraction by Water Swelling, J Dent Res68:630.
8.
Gill, J.L. (1978): Design and Analysis of Experiments in the Animal and Medical Sciences, Ames, Iowa: State University Press, 1117 pp.
9.
Kemp-Scholte, C.M. and Davidson, C.L. (1988): Marginal Sealing of Curing Contraction Gaps in Class V Composite Resin Restorations, J Dent Res67:841-845.
10.
Kemp-Scholte, C.M. and Davidson, C.L. (1990): Marginal Integrity Related to Bond Strength and Strain Capacity of Composite Resin Restorative Systems, J Prosthet Dent, accepted for publication.
11.
Komatsu, M. and Finger, W. (1986): Correlation of Early Bond Strength with Margin Gaps, Dent Mater2:257-262.
12.
Munksgaard, E.C.; Itoh, K.; and Jørgensen, K.D. (1985a): Dentin-Polymer Bond in Resin Fillings Tested in vitro by Thermo-and Load Cycling, J Dent Res64:144-146.
13.
Munksgaard, E.C.; Irie, M.; and Asmussen, E. (1985b): Dentin-Polymer Bond Promoted by Gluma and Various Resins, J Dent Res64:1409-1411.
14.
Phair, C.B. and Fuller, J.L. (1985): Microleakage of Composite Resin Restorations with Cementum Margins, J Prosthet Dent53:361-365.
15.
Pintado, M.R. and Douglas, W.H. (1988): The Comparison of Microleakage between Two Different Dentin Bonding Resin Systems, Quint Int19:905-907.
16.
Prati, C. and Nucci, C. (1989): Marginal Gap, Microleakage and Shear Bond Strength of Adhesive Restorative Systems, J Dent Res68:996, Abst. No. 1036.
17.
SAS (1985): Statistical Analyses System, General Linear Models, Cary, NC: SAS Institute Inc., 965 pp.
18.
Subrata, G. and Davidson, C.L. (1989): The Effect of Various Surface Treatments on the Shear Strength between Composite Resin and Glass-Ionomer Cement, J Dent17:28-32.
19.
Tam, L.E.; Pulver, E.; McComb, D.; and Smith, D.C. (1989): Physical Properties of Calcium Hydroxide and Glass-Ionomer Base and Lining Materials, Dent Mater5:145-149.
20.
Torstenson, B. and Brannstrom, M. (1985): Contraction Gap under Composite Resin Restorations: Effect of Hygroscopic Expansion and Thermal Stress, Oper Dent13:159-163.
