Effect of pre-heating resin composite and light-curing units on monomer conversion
In: Laser Physics, Jg. 20 (2009-12-07), S. 285-290
Online
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Zugriff:
The purpose of this study was to evaluate the effect of pre-heating resin composite photo-cured with light-curing units (LCU) by FT-IR. Twenty specimens were made in a metallic mold (4 mm diameter × 2 mm thick) from composite resin—Tetric Ceram® (Ivoclar/Vivadent) at room temperature (25°C) and pre-heated to 37, 54, and 60°C. The specimens were cured with halogen curing light (QTH) and light emitted by diodes (LED) during 40 s. Then, the specimens were pulverized, pressed with KBr and analyzed with FT-IR. The data were submitted to statistical analysis of variance and Kruskal-Wallis test. Study data showed no statistically significant difference to the degree of conversion for the different light curing units (QTH and LED) (p > 0.05). With the increase of temperature there was significant increase in the degree of conversion (p < 0.05). In this study were not found evidence that the light curing unit and temperature influenced the degree of conversion.
| Titel: |
Effect of pre-heating resin composite and light-curing units on monomer conversion
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| Autor/in / Beteiligte Person: | Alessandra Nara de Souza Rastelli ; Porto-Neto, S. T. ; Saade, J. L. ; Rossato, D. M. ; Matheus Coelho Bandeca ; Saade, E. G. ; Bagnato, V. S. |
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| Zeitschrift: | Laser Physics, Jg. 20 (2009-12-07), S. 285-290 |
| Veröffentlichung: | Pleiades Publishing Ltd, 2009 |
| Medientyp: | unknown |
| ISSN: | 1555-6611 (print) ; 1054-660X (print) |
| DOI: | 10.1134/s1054660x10010172 |
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