Antibacterial Effect of Provisional Cements with Incorporated Polyethyleneimine Nanoparticles: An In Vivo Study

• Autores: Inbal Ivgi, Ami Smidt, Nathan Zaltsman, Gilad Ben-Gal, Nurit Beyth
• Localización: The International Journal of Prosthodontics, ISSN-e 1942-4426, Nº. 5, 2017, págs. 471-473
• Idioma: inglés
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• Resumen

  • Purpose: Provisional restorations exhibit various degrees of microleakage when cemented. Incorporation of quaternized polyethyleneimine nanoparticles (QPEI) into provisional cements may be effective against bacteria in vivo.

    Materials and Methods: Nine polymethylmethacrylate provisional restorations in human volunteers were evaluated after cementation with and without QPEI nanoparticles. Bacterial load in the provisional cement was assessed after 1 week of cementation.

    Results: The number of colonyforming units in the cement with QPEI was significantly lower (P < .05) than in the control cement.

    Conclusion: The results of this in vivo study clearly indicate that provisional cement incorporating QPEI nanoparticles significantly reduces viable bacterial counts in the provisional cement in all patients.