Degree of conversion of Filtek Silorane Adhesive System and Clearfil SE Bond within the hybrid and adhesive layer: An in situ Raman analysis. (Articolo in rivista)

Type
Label
  • Degree of conversion of Filtek Silorane Adhesive System and Clearfil SE Bond within the hybrid and adhesive layer: An in situ Raman analysis. (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Alternative label
  • Navarra CO, Cadenaro M, Armstrong SR, Jessop J, Antoniolli F, Sergo V, Di Lenarda R, Breschi L. (2009)
    Degree of conversion of Filtek Silorane Adhesive System and Clearfil SE Bond within the hybrid and adhesive layer: An in situ Raman analysis.
    in Dental materials
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Navarra CO, Cadenaro M, Armstrong SR, Jessop J, Antoniolli F, Sergo V, Di Lenarda R, Breschi L. (literal)
Pagina inizio
  • 1178 (literal)
Pagina fine
  • 1185 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 25 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Department of Biomedicine, University of Trieste, Trieste, Italy; Department of Operative Dentistry, University of Iowa, Iowa City, IA, USA; Department of Chemical & Biochemical Engineering, University of Iowa, Iowa City, IA, USA; Department of Material and Natural Resources, University of Trieste, Italy IGM-CNR, Unit of Bologna c/o IOR, Bologna, Italy (literal)
Titolo
  • Degree of conversion of Filtek Silorane Adhesive System and Clearfil SE Bond within the hybrid and adhesive layer: An in situ Raman analysis. (literal)
Abstract
  • OBJECTIVES: To examine the degree of conversion (DC) of the adhesive interfaces created by Filtek Silorane Adhesive and Clearfil SE Bond using micro-Raman spectroscopy. METHODS: The adhesives were applied on human dentin in accordance with manufacturer's instructions. Specimens were cut to expose the bonded interfaces to the micro-Raman beam (Ranishaw InVia; laser wl 785nm). Raman spectra were collected along the dentin/self-etching primer/adhesive interface at 1mum intervals. The relative intensities of bands associated with mineral (P-O functional group at 960cm(-1)) and adhesive (C-C-O group at 605cm(-1)) components within the bonded interface were used to detect monomer penetration into the dentin matrix and to calculate the degree of conversion (CC at 1640cm(-1) as reaction peak, C-C-O at 605cm(-1) as reference peak). Data were statistically analyzed with two-way ANOVA. RESULTS: DC of Filtek Silorane Adhesive was 69+/-7% in the adhesive layer, increasing (p<0.05) to 93+/-5% in the primer and 92+/-9% in the hybrid layer. Clearfil SE Bond showed a DC of 83+/-3% in the hybrid and 85+/-3% in the adhesive layer. Thus, Filtek Silorane Adhesive showed a higher DC than Clearfil SE Bond in the hybrid layer (p<0.05), but a lower DC in the adhesive (p<0.05). SIGNIFICANCE: As high DC is a fundamental pre-requisite for the stability of the bond over time, this study supports the hypothesis that optimal stability of Filtek Silorane Adhesive can be obtained. However, further research is needed to investigate the mechanical properties of the hybrid layer created by Filtek Silorane Adhesive and its long-term stability. (literal)
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