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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Influence of different light-curing units on the surface roughness of restorative materials: in situ study

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Author(s):
Juliane Cristina Ciccone-Nogueira [1] ; Wanessa Christine de Souza-Zaroni [2] ; Michelle Alexandra Chinelatti [3] ; Regina Guenka Palma-Dibb [4]
Total Authors: 4
Affiliation:
[1] USP. FORP. Depto de Odontologia Restauradora - Brasil
[2] Universidade Cruzeiro do Sul - Brasil
[3] USP. FORP. Depto de Odontologia Restauradora - Brasil
[4] USP. FORP. Depto de Odontologia Restauradora - Brasil
Total Affiliations: 4
Document type: Journal article
Source: MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 10, n. 3, p. 253-256, 2007-09-00.
Abstract

The aim of this study was to evaluate the influence of different light sources (LED and Halogen lamp) on the roughness (superficial) of composite resin (Filtek Z250, Filtek P60, Charisma and Durafill) varying post-irradiation times, in an in situ experiment. For this purpose, 80 specimens were made in polyurethane moulds. Ten volunteers without medicament use and good oral condition were selected and from them study moulds were obtained. A palatal intra-oral acrylic resin appliance was made for each of the subjects of the experiment. In each appliance, two specimens of each material were fixed (LED/Halogen lamp - control group). Roughness tests were performed immediately and 30 days after initial light-curing. Statistical analysis was performed using ANOVA. Statistically significant difference was observed only between post-irradiation times, where the 30th day showed the highest roughness values. It be concluded that roughness was influenced only by post-irradiation times, presenting the 30- days period inferior behavior. (AU)