title: Effect of silorane-based adhesive system on bond strength between composite and dentin substrate.
abstract: BACKGROUND
  The complexities of the oral environment, the dentin substrate, and the different bond and composite resin systems represent a challenge to the maintenance of reasonable bond between the composite resin and the tooth structure.
  
  
  OBJECTIVE
  To evaluate the effect of the adhesive system on bond strength between silorane-based composite resin and dentin.
  
  
  METHODS
  Fourteen human molars extracted were selected and vertically cut into 3 dentin fragments, randomly divided among the experimental groups and restored with Z250 and P90 composite resin using different adhesive protocols (Adper Single Bond 2, Silorano primer, Adper SE Plus, and Scotchbond Multiuse). Two composite resin cylinders were built up on each dentin surface (n = 10) and subjected to a micro-shear bond strength test.
  
  
  METHODS
  Kruskal-Wallis one-way analysis of variance and Tukey test (P = 0.05).
  
  
  RESULTS
  According to the results, Kruskal-Wallis test evidenced at least one statistical significant difference (P = 0.001). The Tukey test showed statistically significant differences among the group (P < 0.05). Group PSM8 (P90 + SM) showed statically significant higher results when compared with groups PSP4 (P90 + SP), PSB2 (P90 + SB), and ZSE5 (Z250 + SE).
  
  
  CONCLUSIONS
  The results evidenced that the monomer of the adhesive system has an effect on bond strength between the composite resin and dentin.
authors.affiliation: Department of Prosthodontics, University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil.
authors.forename: Jefferson Ricardo
authors.initials: JR
authors.lastname: Pereira
authors.affiliation: Department of Prosthodontics, University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil.
authors.forename: Lindomar Corrêa
authors.initials: LC
authors.lastname: Júnior
authors.affiliation: Department of Prosthodontics, University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil.
authors.forename: Mauro
authors.initials: M
authors.lastname: de Souza Almeida
authors.affiliation: Department of Prosthodontics, University of São Paulo, Bauru, São Paulo, Brazil.
authors.forename: Accácio Lins
authors.initials: AL
authors.lastname: do Valle
authors.affiliation: Department of Pediatric Dentistry, Orthodontics and Community Health, University of São Paulo, Bauru, São Paulo, Brazil.
authors.forename: Heitor Marques
authors.initials: HM
authors.lastname: Honório
authors.affiliation: Department of Prosthodontics, University of São Paulo, Bauru, São Paulo, Brazil.
authors.forename: Hugo Alberto
authors.initials: HA
authors.lastname: Vidotti
authors.affiliation: Department of Restorative Dentistry, University of Toronto, Toronto, Canada.
authors.forename: Grace Mendonca
authors.initials: GM
authors.lastname: De Souza
keywords: Adhesive; composite resin; dental materials