Effect of 2% iodine disinfecting solution on bond strength to dentin

Nelson Renato Franca Alves Da Silva, Christine S. Calamia, Paulo G. Coelho, Marcela Rocha De Oliveira Carrilho, Ricardo Marins De Carvalho, Page Caufield, P. Van Thompson

Research output: Contribution to journalArticlepeer-review


Introduction: Disinfection of dentin surfaces is desirable so long as it does not interfere with subsequent bonding of adhesive resins. Objective: To test the null hypothesis that bond strengths to dentin are not affected by previous application of an iodine disinfecting solution. Materials and Methods: Twenty-four extracted non-carious molars were selected. Occlusal enamel was removed producing a flat dentin substrate. Test teeth were all treated with 2% Iodine disclosing/disinfecting solution (I2DDS) for 20 sec and rinsed for 20 sec followed by the application of self- or total- etching bonding systems, generating five adhesive groups (n=3): Single Bond; ; Prime & Bond NT; Clearfil SE Bond; Opti-Bond Plus. The control groups (n=3 per adhesive) had no disclosing/disinfectant application prior to adhesive application. A 4-mm thick resin restoration was built up on each tooth for microtensile testing. Statistical analyses between experimental and control groups were performed by student's t-test (α= 0.05). Results: In general, experimental groups (previously treated with I2DDS) showed significantly lower bond strength values when compared with their respective controls (p<0.05), except for group Prime &Bond I2 that did not significantly differ from its control (p>0.05). Conclusion: Acetone-base adhesive systems seem not to be affected by the application of I2DDS prior to etching and bonding procedures.

Original languageEnglish (US)
Pages (from-to)399-404
Number of pages6
JournalJournal of Applied Oral Science
Issue number6
StatePublished - 2006


  • Dentin
  • Dentin sensitivity
  • Dentin-bonding agents
  • Iodine

ASJC Scopus subject areas

  • General Dentistry


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