Polymerization capability of simplified dental adhesives with camphorquinone, phenyl-propanedione and bis-alkyl phosphine photoinitiators
Borges, Boniek Castillo Dutra; Sousa-Lima, Rodolfo Xavier de; Souza, Géssica Dandara Medeiros de; Justo-Fernandes, Ana Carla Bezerra de Carvalho; Chaves, Letícia Virgínia de Freitas; Souza-Junior, Eduardo José Carvalho; Assunção, Isauremi Vieira de.
Braz. j. oral sci
; 17: e18370, 2018. tab
Artículo
en Inglés
| LILACS, BBO - odontología (Brasil) | ID: biblio-963844
Aim:
this study aimed to evaluate the degree of conversion (DC) exhibited by novel formulations of dental adhesive systems including camphorquinone (CQ), phenyl-propanedione (PPD), and bis-alkyl phosphine oxide (BAPO) when cured by mono- or polywave light emitting diodes (LEDs).Methods:
an adhesive model was formulated by mixing hydroxyethyl methacrylate (HEMA, 40 wt%) and bisphenol A glycidyl dimethacrylate (BisGMA, 60 wt%) in ethanol (30 wt%). Five materials were then formulated by adding the following photoinitiators CQ (1 mol%), CQ/PPD (0.5/0.5 mol%), CQ/BAPO (0.5/0.5 mol%), PPD (1 mol%), and BAPO (1 mol%). The DC for each material was measured with Fourier transform infrared spectroscopy. Analysis of variance and Tukey's post-hoc test were used to analyze the data (p < 0.05).Results:
Except for CQ, the photoinitiators provided a significantly higher DC in the adhesive systems following photoactivation with a polywave LED.Conclusion:
The use of alternative photoinitiators and a polywave LED improved the DC of the adhesive systems examined
Biblioteca responsable:
BR218.1
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