作者
Mateus Rodrigues Tonetto, Shelon Cristina Souza Pinto, Alessandra de Nara Souza Rastelli, Alvaro Henrique Borges, José Roberto Cury Saad, Fábio Luis Miranda Pedro, Marcelo Ferrarezi de Andrade, Matheus Coelho Bandéca
发表日期
2013/1/1
期刊
Journal of Contemporary Dental Practice
页码范围
76-79
简介
Aims and objectives
The behavior of polymer-matrix composite is dependent on the degree of conversion. The aim of this study was to evaluate the degree of conversion of two resin cements following storage at 37°C immediately, 24 and 48 hours, and 7 days after light-curing by FTIR analysis.
Materials and methods
The specimens were made in a metallic mold and cured with blue LED with power density of 500 mW/cm2 for 30 seconds. The specimens were pulverized, pressed with KBr and analyzed with FTIR following storage times.
Statistical analysis used
ANOVA (two-way) and Tukey's post hoc.
Results
To the polymer-matrix composites between 24 and 48 hours does not show a significant increase (p > 0.05), however, the highest values were found after 7 days.
Conclusion
The polymer-matrix composites used in this study showed similarity on the degree of conversion and increased of according to the time …
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MR Tonetto, SCS Pinto, ANS Rastelli, AH Borges… - Journal of Contemporary Dental Practice, 2013