The effect of curing mode on extent of polymerization and microhardness of dual-cured, self-adhesive resin cements

Milena Cadenaro, Chiara Ottavia Navarra, Francesca Antoniolli, Annalisa Mazzoni, Roberto Di Lenarda, Frederick Allen Rueggeberg, Lorenzo Breschi

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Purpose: To compare the effect of curing mode (self- or light-cure) on the extent of polymerization (%EP1 as measured using differential scanning calorimetry, (DSC) and microhardness of two dual-cured, self-adhesive resin cements, using a conventional, dual-cured resin cement as control. Methods: Small amounts of the commercial self-adhesive cements Maxcem and RelyX Unicem or Panavia F2.0 dual-cure resin based cement used as control were polymerized within the DSC chamber at 35°C under a nitrogen atmosphere. 10 specimens were light-cured immediately (20 seconds, 600 mW/cm2) and left undisturbed for 2 hours and 10 additional specimens were left to self-cure in the dark for 2 hours. Following DSC treatment, microhardness of the specimens was measured (Vickers). For each test parameter, data were analyzed with a two-way ANOVA and the Tukey post hoc test. Results: %EP and microhardness of all cements were higher when the light-cure mode of dual-activation was used (P< 0.05) instead of only self-curing. No significant difference in %EP was found between either self-adhesive cement or the control using either the light- or self-curing modes. In the light-activated mode, the conventional, dual-cure control cement demonstrated lower microhardness than the self-adhesive cements (P< 0.05).

Original languageEnglish (US)
Pages (from-to)14-18
Number of pages5
JournalAmerican journal of dentistry
Volume23
Issue number1
StatePublished - Feb 1 2010

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Resin Cements
Polymerization
Differential Scanning Calorimetry
Light
Atmosphere
Analysis of Variance
Nitrogen
Adhesive cement

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Cadenaro, M., Navarra, C. O., Antoniolli, F., Mazzoni, A., Di Lenarda, R., Rueggeberg, F. A., & Breschi, L. (2010). The effect of curing mode on extent of polymerization and microhardness of dual-cured, self-adhesive resin cements. American journal of dentistry, 23(1), 14-18.

The effect of curing mode on extent of polymerization and microhardness of dual-cured, self-adhesive resin cements. / Cadenaro, Milena; Navarra, Chiara Ottavia; Antoniolli, Francesca; Mazzoni, Annalisa; Di Lenarda, Roberto; Rueggeberg, Frederick Allen; Breschi, Lorenzo.

In: American journal of dentistry, Vol. 23, No. 1, 01.02.2010, p. 14-18.

Research output: Contribution to journalArticle

Cadenaro, M, Navarra, CO, Antoniolli, F, Mazzoni, A, Di Lenarda, R, Rueggeberg, FA & Breschi, L 2010, 'The effect of curing mode on extent of polymerization and microhardness of dual-cured, self-adhesive resin cements', American journal of dentistry, vol. 23, no. 1, pp. 14-18.
Cadenaro, Milena ; Navarra, Chiara Ottavia ; Antoniolli, Francesca ; Mazzoni, Annalisa ; Di Lenarda, Roberto ; Rueggeberg, Frederick Allen ; Breschi, Lorenzo. / The effect of curing mode on extent of polymerization and microhardness of dual-cured, self-adhesive resin cements. In: American journal of dentistry. 2010 ; Vol. 23, No. 1. pp. 14-18.
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