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Peptide Mediated Antimicrobial Dental Adhesive System.

Sheng-Xue Xie1, Kyle Boone1,2, Sarah Kay VanOosten1,2

  • 1Institute for Bioengineering Research, University of Kansas, 1530 W. 15th St., Lawrence, KS 66045, USA.

Applied Sciences (Basel, Switzerland)
|February 5, 2021
PubMed
Summary

A novel dental adhesive combining antimicrobial peptides and ε-polylysine effectively combats secondary caries by preventing bacterial invasion at the adhesive/dentin interface, offering a safe alternative to traditional methods.

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adhesive formulationantimicrobial peptidedental compositeshybrid interfacepolylysine

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Area of Science:

  • Biomaterials Science
  • Dental Materials
  • Nanotechnology

Background:

  • Secondary caries, caused by bacterial colonization of the adhesive/dentin interface, is a primary cause of dental composite failure.
  • Current antibacterial strategies for dental materials raise concerns about hypersensitivity and antibiotic resistance.

Purpose of the Study:

  • To develop a novel, bio-functionalized dental adhesive with enhanced antimicrobial properties.
  • To address the vulnerability of the adhesive/dentin interface to bacterial invasion and degradation.

Main Methods:

  • Formulation of an antimicrobial adhesive using a combination of antimicrobial peptide and a ε-polylysine resin system.
  • Biomolecular characterization and assessment of the functional activity of the engineered adhesive.
  • Evaluation of antimicrobial activity against *Streptococcus mutans*.

Main Results:

  • The combinatorial formulation demonstrated significant antimicrobial activity against *Streptococcus mutans*.
  • The developed adhesive system offers a biomimetic approach, utilizing non-toxic components like ε-polylysine.
  • The hybrid system provides advanced, biofunctional properties at the critical adhesive/dentin interface.

Conclusions:

  • The novel antimicrobial peptide-hydrophilic adhesive hybrid system effectively inhibits bacterial colonization and degradation at the adhesive/dentin interface.
  • This approach presents a promising, safe alternative for preventing secondary caries and improving the longevity of dental restorations.