Surface hardness of posterior composite resins using supplemental polymerization after simulated occlusal adjustment

Simonsen, Richard J.; Kanca, III, John
October 1986
Quintessence International;Oct1986, Vol. 17 Issue 10, p631
Academic Journal
The article discusses a study on the surface hardness of several commercially available posterior composite dental resins using supplemental polymerization after simulated occlusal adjustment. It determined whether decreased surface hardness after occlusal adjustment can be increased again. The study was designed to polymerize the posterior composite resins, remove 1 mm of the material, test the surface hardness, and polymerize the surface and measure its hardness again. Results of the study showed that all tested material increased numerically in hardness value after additional visible light exposure, after simulated occlusal reduction of surface resin. It was also noticed that the increase in surface harness by composite resins was greater for the darker shade of resin.


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