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

Autor: Nurit Beyth, Inbal Ivgi, Gilad Ben-Gal, Ami Smidt, Nathan Zaltsman
Rok vydání: 2017
Předmět:
Zdroj: The International journal of prosthodontics. 30(5)
ISSN: 0893-2174
Popis: 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.
Databáze: OpenAIRE