Brazilian Journal of Oral Sciences (Nov 2015)

Pulp chamber temperature changes during resin composite photoactivation

  • Luis Felipe Jochims Schneider,
  • Larissa Maria Assad Cavalcante,
  • Rubens Nisie Tango,
  • Simonides Consani,
  • Mário Alexandre Coelho Sinhoreti,
  • Lourenço Correr Sobrinho

DOI
https://doi.org/10.20396/bjos.v4i12.8641798
Journal volume & issue
Vol. 4, no. 12

Abstract

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The aim of the present study was to verify if there is any difference in the pulp chamber temperature rise during the photo-activation of two resin composites with different viscosities. Eighteen extracted bovine incisors were divided into two groups (n=9) that were restored with two different resin composites – Filtek Z250 and Filtek Flow (3M/ESPE Dental Products, St Paul, MN 55144, USA). During the photo-activation, with a conventional halogen light curing unit (XL 2500, 3M/ESPE), a type-K thermocouple registered the temperature rise peak in the pulp chamber. The temperature rise data were submitted to Student-t test at 5% significance. The resin composite Filtek Flow shows statically higher mean temperature rise (p<0.05). We conclude that the resin composites with different viscosities produce different temperature changes during the photo-activation.

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