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Quintessence Publishing: Journals: JAD

 

The Journal of Adhesive Dentistry

Edited by Jean-François Roulet

ISSN (print) 1461-5185 • ISSN (online) 1757-9988

Publication:

Winter 2000
Volume 2 , Issue 4



Pages: 315-318
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The Effect of Secondary Curing of Resin Composite on the Adherence of Resin Cement.

Asmussen, Erik; Peutzfeldt, Anne

Purpose: The aim of this study was to measure the adherence between a resin cement and a resin composite polymerized with and without an additional secondary cure of the resin composite. Materials and Methods: The resin cement was 3M Opal Luting Composite and the resin composite was Z-100. The resin composite was either polymerized by light only, or given an additional secondary cure at 110C for 10 min. For each curing mode, the composite was either ground on carborundum paper #1000 or sandblasted with alumina powder. The adherence was determined as bond strength and as bond energy. Results: Without sandblasting of the resin composite, the heat treatment resulted in reduced adherence both in the bond strength and the bond energy mode of measurement. With sandblasting, only the bond energy was reduced as a consequence of the heat treatment. Conclusion: On the bases of the experiments conducted, it may be concluded that secondary cure of resin composites takes place at the expense of the adherence to the resin cement.

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