Color stability of resin matrix restorative materials as a function of the method of light activation

Ralf Janda, Jean François Roulet, Martin Kaminsky, Glenn Steffin, Mark A. Latta

Research output: Contribution to journalArticle

92 Citations (Scopus)

Abstract

The purpose was to investigate the influence of curing devices and curing times on the yellow value (b-value) of composites, ormocers and compomers after performing a suntest (EN ISO 7491). Eight samples of Charisma (CH), Durafill (DU), Definite (DE), and Dyract AP (DY) each were light cured with Translux Energy (tungsten halogen light) for 20, 40 or 60 s and with Apollo 95-E (plasma light) for 3, 10 or 20 s. All samples were subjected to a suntest. Before and after the suntest the yellow values (b-values) were determined and the change (Δb) was calculated. When cured with Translux Energy for 20 and 40 s DU, CH, and DY revealed significantly negative Δb-values. The b-value of DE remained nearly constant. When cured for 60 s, DU and DE shifted to more yellow while CH and DY still bleached a little. When cured with Apollo 95-E, a dramatic bleaching process of all materials investigated occurred after the suntest (significant negative Δb). It may be concluded that the bleaching of composites, ormocers and compomers depends on (i) the used light curing device and (ii) the chosen curing times. The tungsten halogen light provided highly significantly superior results.

Original languageEnglish
Pages (from-to)280-285
Number of pages6
JournalEuropean Journal of Oral Sciences
Volume112
Issue number3
DOIs
StatePublished - Jun 2004

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Color
Organically Modified Ceramics
Light
Compomers
Tungsten
Halogens
Equipment and Supplies
Durafill

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

Cite this

Color stability of resin matrix restorative materials as a function of the method of light activation. / Janda, Ralf; Roulet, Jean François; Kaminsky, Martin; Steffin, Glenn; Latta, Mark A.

In: European Journal of Oral Sciences, Vol. 112, No. 3, 06.2004, p. 280-285.

Research output: Contribution to journalArticle

Janda, Ralf ; Roulet, Jean François ; Kaminsky, Martin ; Steffin, Glenn ; Latta, Mark A. / Color stability of resin matrix restorative materials as a function of the method of light activation. In: European Journal of Oral Sciences. 2004 ; Vol. 112, No. 3. pp. 280-285.
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