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The effect of glass ionomer cement on the surface hardness of resin based materials
N M Kilpatrick1, J F McCabe, J J Murray
1Dental Materials Science Unit, The Dental School, Newcastle upon Tyne, UK.
The European Journal of Prosthodontics and Restorative Dentistry
|December 1, 1995
Abstract:
The potential interaction between resin-based materials and glass ionomer cements was investigated by comparing the hardness of the non-adjacent surface of two different resin materials when cured over the cements. Control specimens were made by curing the resin materials over an acrylic surface. Two glass ionomer cements were tested and neither were shown to cause a significant reduction in the surface hardness of either of the resin based materials. The 0.5 mm thick specimens of both resin based materials were significantly softer than the thicker specimens irrespective of the base material.