Effect of curing time and light curing systems on the surface hardness of compomers

Z. Okte, P. Villalta, Franklin Garcia-Godoy, F. Garcia-Godoy, P. Murray

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This study compared the Vickers hardness of the top and bottom surfaces of two compomers (Compoglass F and Dyract AP) polymerized for 20 and 40 seconds with two different light curing systems. Five samples for each group were prepared using Teflon molds (9x2 mm) and were light-cured either with a conventional halogen lamp (Optilux 501) or LED light (LEDemetron I) for 20 or 40 seconds. After curing, all the samples were stored in distilled water for 24 hours at 37°C. The Vickers hardness measurements were obtained from the top and bottom surfaces of each sample. ANOVA, Scheffé and t-test were used to evaluate the statistical significance of the results. For the top and bottom surfaces, the light curing systems and curing times tested showed no statistical difference, except for Optilux 501, which used 20 seconds for both compomers (p<0.05). There was no significant difference in the microhardness of both surfaces of Compoglass F and Dyract AP cured for either 20 or 40 seconds using LEDemetron I. With Optilux 501, the microhardness of samples cured for 40 seconds was significantly higher than 20 seconds (p<0.05).

Original languageEnglish (US)
Pages (from-to)540-545
Number of pages6
JournalOperative Dentistry
Volume30
Issue number4
StatePublished - Jul 1 2005
Externally publishedYes

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Compomers
Hardness
Light
Halogens
Polytetrafluoroethylene
Analysis of Variance
Fungi
Water

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

Cite this

Okte, Z., Villalta, P., Garcia-Godoy, F., Garcia-Godoy, F., & Murray, P. (2005). Effect of curing time and light curing systems on the surface hardness of compomers. Operative Dentistry, 30(4), 540-545.

Effect of curing time and light curing systems on the surface hardness of compomers. / Okte, Z.; Villalta, P.; Garcia-Godoy, Franklin; Garcia-Godoy, F.; Murray, P.

In: Operative Dentistry, Vol. 30, No. 4, 01.07.2005, p. 540-545.

Research output: Contribution to journalArticle

Okte, Z, Villalta, P, Garcia-Godoy, F, Garcia-Godoy, F & Murray, P 2005, 'Effect of curing time and light curing systems on the surface hardness of compomers', Operative Dentistry, vol. 30, no. 4, pp. 540-545.
Okte, Z. ; Villalta, P. ; Garcia-Godoy, Franklin ; Garcia-Godoy, F. ; Murray, P. / Effect of curing time and light curing systems on the surface hardness of compomers. In: Operative Dentistry. 2005 ; Vol. 30, No. 4. pp. 540-545.
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