Polymerization capability of simplified dental adhesives with camphorquinone, phenyl-propanedione and bis-alkyl phosphine photoinitiators


  • Boniek Castillo Dutra Borges Federal University of Rio Grande do Norte
  • Rodolfo Xavier de Sousa Lima Federal University of Rio Grande do Norte
  • Géssica Dandara Medeiros de Souza Federal University of Rio Grande do Norte
  • Ana Carla Bezerra de Carvalho Justo-Fernandes Federal University of Rio Grande do Norte
  • Letícia Virgínia de Freitas Chaves Federal University of Rio Grande do Norte
  • Eduardo José Carvalho Souza-Junior FAIPE School
  • Isauremi Vieira de Assunção Federal University of Rio Grande do Norte




Spectroscopy, fourier transform infrared. Dental materials. Dental cements.


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.


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Author Biographies

Boniek Castillo Dutra Borges, Federal University of Rio Grande do Norte

Department of Dentistry

Rodolfo Xavier de Sousa Lima, Federal University of Rio Grande do Norte

Department of Dentistry

Géssica Dandara Medeiros de Souza, Federal University of Rio Grande do Norte

Department of Dentistry

Ana Carla Bezerra de Carvalho Justo-Fernandes, Federal University of Rio Grande do Norte

Department of Dentistry

Letícia Virgínia de Freitas Chaves, Federal University of Rio Grande do Norte

Department of Dentistry

Eduardo José Carvalho Souza-Junior, FAIPE School

FAIPE School

Isauremi Vieira de Assunção, Federal University of Rio Grande do Norte

Department of Dentistry


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How to Cite

Borges BCD, Lima RX de S, Souza GDM de, Justo-Fernandes ACB de C, Chaves LV de F, Souza-Junior EJC, Assunção IV de. Polymerization capability of simplified dental adhesives with camphorquinone, phenyl-propanedione and bis-alkyl phosphine photoinitiators. Braz. J. Oral Sci. [Internet]. 2018 Jul. 13 [cited 2022 Aug. 8];17:e18370. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8652928

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