Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/199819
Type: Artigo de periódico
Title: The Effect Of Curing Light And Chemical Catalyst On The Degree Of Conversion Of Two Dual Cured Resin Luting Cements.
Author: Souza-Junior, Eduardo José
Prieto, Lúcia Trazzi
Soares, Giulliana Panfiglio
Dias, Carlos Tadeu dos Santos
Aguiar, Flávio Henrique Baggio
Paulillo, Luís Alexandre Maffei Sartini
Abstract: The aim of this study was to evaluate the influence of different curing lights and chemical catalysts on the degree of conversion of resin luting cements. A total of 60 disk-shaped specimens of RelyX ARC or Panavia F of diameter 5 mm and thickness 0.5 mm were prepared and the respective chemical catalyst (Scotchbond Multi-Purpose Plus or ED Primer) was added. The specimens were light-cured using different curing units (an argon ion laser, an LED or a quartz-tungsten-halogen light) through shade A2 composite disks of diameter 10 mm and thickness 2 mm. After 24 h of dry storage at 37°C, the degree of conversion of the resin luting cements was measured by Fourier-transformed infrared spectroscopy. For statistical analysis, ANOVA and the Tukey test were used, with p ≤ 0.05. Panavia F when used without catalyst and cured using the LED or the argon ion laser showed degree of conversion values significantly lower than RelyX ARC, with and without catalyst, and cured with any of the light sources. Therefore, the degree of conversion of Panavia F with ED Primer cured with the quartz-tungsten-halogen light was significantly different from that of RelyX ARC regardless of the use of the chemical catalyst and light curing source. In conclusion, RelyX ARC can be cured satisfactorily with the argon ion laser, LED or quartz-tungsten-halogen light with or without a chemical catalyst. To obtain a satisfactory degree of conversion, Panavia F luting cement should be used with ED Primer and cured with halogen light.
Subject: Bisphenol A-glycidyl Methacrylate
Catalysis
Curing Lights, Dental
Lasers, Gas
Lighting
Polyethylene Glycols
Polymethacrylic Acids
Resin Cements
Spectroscopy, Fourier Transform Infrared
Rights: fechado
Identifier DOI: 10.1007/s10103-010-0857-y
Address: http://www.ncbi.nlm.nih.gov/pubmed/21104286
Date Issue: 2012
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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