Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/1024
Type: Artigo de periódico
Title: FT-IR spectroscopy assessment of aesthetic dental materials irradiated with low-dose therapeutic ionizing radiation
Author: CRUZ, A. D.
ALMEIDA, S. M.
RASTELLI, A. N. S.
BAGNATO, V. S.
BYSCOLO, F. N.
Abstract: The aim of the present study was to evaluate the effects of low-dose therapeutic ionizing radiation on different aesthetic dental materials. Forty five specimens (n = 45) of three different aesthetic restorative materials were prepared and randomly divided into five groups: G1 (control group); G2, G3, G4, G5 experimental groups irradiated respectively with 0.25, 0.50, 0.75, and 1.00 Gy of gamma radiation by the (60)Co teletherapy machine. Chemical analyses were performed using a FT-IR Nicolet 520 spectrophotometer with reflectance diffuse technique. Even a minimal exposition at ionizing radiation in therapeutic doses can provide chemical changes on light-cured composite resins. The three studied restorative materials showed changes after exposure at gamma radiation, however the increase of the radiation dose did not contribute to an increase in this effect.
Country: Estados Unidos
Editor: MAIK NAUKA/INTERPERIODICA/SPRINGER
Citation: LASER PHYSICS, v.19, n.3, p.461-467, 2009
Rights: fechado
Identifier DOI: 10.1134/S1054660X09030189
Address: http://dx.doi.org/10.1134/S1054660X09030189
http://apps.isiknowledge.com/InboundService.do?Func=Frame&product=WOS&action=retrieve&SrcApp=EndNote&UT=000264134100018&Init=Yes&SrcAuth=ResearchSoft&mode=FullRecord
Date Issue: 2009
Appears in Collections:FOP - Artigos e Outros Documentos

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