Electric device improves bonds of simplified etch-and-rinse adhesives

Guido Pasquantonio, Franklin Chi Meng Tay, Annalisa Mazzoni, Pietro Suppa, Alessandra Ruggeri, Mirella Falconi, Roberto Di Lenarda, Lorenzo Breschi

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


Objectives: This study investigated the effects of an electric field produced by a new device for the application of etch-and-rinse adhesives on demineralized dentin surfaces. Methods: Three simplified etch-and-rinse adhesives (Single Bond, Prime&Bond NT and One-Step) were applied with the electric device and compared with controls prepared with disposable sponges. Specimens were processed for microtensile bond strength test and nanoleakage investigation using high resolution SEM. Results: Microtensile testing revealed higher bond strengths (p < 0.05) for all adhesives tested when electricity was used. Adhesive interfaces prepared with electric impulses exhibited very homogenous hybrid layers with minimal nanoleakage compared with the controls. Significance: The use of electricity produced by a new electronic device during the application of dentin adhesives may increase adhesive adaptation to the dentin substrate and improve dentin hybridization due to the substrate modifications induced by an electric field on the demineralized dentin organic matrix.

Original languageEnglish (US)
Pages (from-to)513-518
Number of pages6
JournalDental Materials
Issue number4
StatePublished - Apr 2007
Externally publishedYes


  • Dentin
  • Dentin bonding systems
  • Electric field
  • Microtensile

ASJC Scopus subject areas

  • Materials Science(all)
  • Dentistry(all)
  • Mechanics of Materials


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