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Universal adhesives and dual-cured core buildup composite material: adhesive properties
Malaquias, Pâmela; Gutiérrez, Mario Felipe; Sutil, Elisama; Matos, Thalita de Paris; Hanzen, Taise Alessandra; Reis, Alessandra; Department of Restorative SciencesPerdigão, Jorge; Loguercio, Alessandro Dourado.
Afiliação
  • Malaquias, Pâmela; Universidade Estadual de Ponta Grossa. Departamento de Odontologia. Ponta Grossa. BR
  • Gutiérrez, Mario Felipe; Universidad de los Andes. Facultad de Odontogia. CL
  • Sutil, Elisama; Universidade Estadual de Ponta Grossa. Departamento de Odontologia. Ponta Grossa. BR
  • Matos, Thalita de Paris; Universidade Estadual de Ponta Grossa. Departamento de Odontologia. Ponta Grossa. BR
  • Hanzen, Taise Alessandra; Universidade Estadual de Ponta Grossa. Departamento de Odontologia. Ponta Grossa. BR
  • Reis, Alessandra; Universidade Estadual de Ponta Grossa. Departamento de Odontologia. Ponta Grossa. BR
  • Department of Restorative SciencesPerdigão, Jorge; University of Minnesota. Division of Operative Dentistry. Department of Restorative SciencesPerdigão, Jorge. Minneapolis. US
  • Loguercio, Alessandro Dourado; Universidade Estadual de Ponta Grossa. Departamento de Odontologia. Ponta Grossa. BR
J. appl. oral sci ; J. appl. oral sci;28: e20200121, 2020. tab, graf
Article em En | LILACS, BBO | ID: biblio-1143148
Biblioteca responsável: BR1.1
ABSTRACT
Abstract Dual-cured buildup composites and simplified light-cured adhesive systems are mixed with a chemical activator to prevent the incompatibility between them.

Objective:

To evaluate microshear bond strength (μSBS) and nanoleakage (NL) of three universal adhesives used under buildup composites using different curing modes, at baseline and after 6-months (6m).

Methodology:

Dentin specimens of 55 molars were assigned to Clearfil Universal Bond[CFU], Prime&Bond Elect[PBE] and One Coat 7 Universal[OCU]. All-Bond Universal[ABU] and Adper Scotchbond Multi-Purpose[SMP] were used as controls. CFU, PBE, and OCU were light-cured [LC], dual-cured using a self-curing activator [DC], and self-cured, using a self-curing activator and waiting for 20 min [SC]. Upon the application of the adhesive, transparent matrices were filled with a dual-cured buildup composite and light cured, then tested in mSBS. For NL, the specimens were submersed in ammoniacal silver nitrate and sectioned to observe under the SEM. Three-way ANOVA and Tukey's test were applied (α=0.05).

Results:

OCU/LC-PBE/LC resulted in higher mean μSBS than ABU/LC. For SMP/DC higher mean μSBS were obtained than for both CFU/DC and OCU/DC (baseline). No universal adhesive was significantly affected by curing mode or storage time. CFU, PBE, and OCU did not undergo significant changes in any curing mode (p>0.05). NL (baseline) PBE/LC resulted in higher %NL compared to ABU/LC. SMP/DC resulted in higher %NL than CFU/DC-OCU/DC. CFU/LC/DC resulted in lower %NL than CFU/SC. PBE/SC resulted in lower %NL than PBE/DC. OCU/LC/SC showed lower %NL than OCU/DC. OCU showed significant lower %NL than CFU and PBE. All CFU groups, as well as OCU/SC, resulted in increased %NL at 6m when compared with baseline.

Conclusion:

For universal adhesives used in etch-and-rinse mode, self-cured activator and different curing modes did not influence μSBS. However, some interactions were observed for NL, but this influence was material-specific.
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Texto completo: 1 Coleções: 01-internacional Base de dados: BBO / LILACS Assunto principal: Colagem Dentária Idioma: En Revista: J. appl. oral sci Assunto da revista: ODONTOLOGIA Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil / Chile / Estados Unidos País de publicação: Brasil

Texto completo: 1 Coleções: 01-internacional Base de dados: BBO / LILACS Assunto principal: Colagem Dentária Idioma: En Revista: J. appl. oral sci Assunto da revista: ODONTOLOGIA Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil / Chile / Estados Unidos País de publicação: Brasil