Do products preventing demineralization around orthodontic brackets affect adhesive bond strength?

Bennett T. Amaechi, Kaveh Najibfard, Irene P. Chedjieu, Hariyali Kasundra, Linda O. Okoye

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Objective: This study investigated the effects, on the shear bond strength of orthodontic brackets, of using an antimicrobial selenium-containing sealant (DenteShield™) to serve dual functions of priming enamel prior to bonding and as a protective barrier against whitespot lesion formation. Materials and Methods: A total of 150 extracted human premolars were randomly assigned into 10 groups (n=15/group). Stainless steel brackets were bonded with two adhesive systems (DenteShield™ or Transbond XT) after the enamel was conditioned with a primer (DenteShield™ or Assure Universal) or a filled resin sealant (DenteShield™, Pro Seal™ or Opal Seal™). The specimens were stored in deionized water at 37 °C for 24 hours and debonded with a universal testing machine. Results: The use of DenteShield™ adhesive to bond orthodontic brackets to the enamel surface resulted in a significantly lower (P<0.05), but clinically acceptable, shear bond strength (mean & SD: 14.5±1.6 MPa) as compared with Transbond XT group (mean & SD: 19.3±1.7 MPa). DenteShield™ sealant used as primer resulted in shear bond strength values comparable to those of Pro Seal™ and Opal Seal™. All adhesive-sealant and primer-sealant combinations tested in this study exhibited shear bond strength values greater than 9.6 MPa, sufficient for clinical orthodontic needs. Conclusion: DenteShield™ sealant can serve as primer as well as anti-demineralization sealant during orthodontic treatment without adversely affecting the shear bond strength of the bracket.

Original languageEnglish (US)
Pages (from-to)1029-1035
Number of pages7
JournalOpen Dentistry Journal
Issue number1
StatePublished - 2018


  • DenteShield™
  • Opal Seal™
  • Orthodontic brackets
  • Pro Seal™
  • Selenium-containing adhesive
  • Selenium-containing primer
  • Selenium-containing sealant
  • Shear bond strength

ASJC Scopus subject areas

  • General Dentistry


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