A Modified Resin Sealer: Physical and Antibacterial Properties

Journal of Endodontics
Juheon SeungPatricia A Tordik

Abstract

The purpose of this study was to investigate the physical and antibacterial properties of a resin sealer mixed with a quaternary ammonium compound, dimethylaminododecyl methacrylate (DMAHDM) and nanosilver (NAg). A pilot study was completed to determine the highest concentrations of DMAHDM and NAg that did not significantly alter the physical properties (setting time, flow, solubility, and dimensional change) of AH Plus (Dentsply Sirona, York, PA) when added to the sealer. These concentrations were selected to create a modified resin sealer (mAH Plus). A modified direct contact test evaluated antibacterial properties of AH Plus, DMAHDM + AH Plus, NAg + AH Plus, and mAH Plus at days 1, 7, and 14 against Enterococcus faecalis. Concentrations of 2.5% DMAHDM and 0.15% NAg were added to AH Plus. The flow of mAH Plus was significantly decreased but still within American National Standards Institute/American Dental Association specifications. There were no significant differences in setting time, solubility, or dimensional change. On day 1, 0.15% NAg + AH Plus, 2.5% DMAHDM + AH Plus, and mAH Plus were significantly more effective against E. faecalis compared with AH Plus (P < .05). On days 7 through 14, 2.5% DMAHDM + AH Plus and mAH P...Continue Reading

Citations

Mar 17, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Wenjing Song, Shaohua Ge
Jul 4, 2019·Dentistry Journal·Alexander BrezhnevJukka P Matinlinna
Jan 28, 2021·Nanomaterials·Adam LubojanskiRafal J Wiglusz
Mar 18, 2021·International Journal of Nanomedicine·Jasmine WongChengfei Zhang
Aug 30, 2021·Journal of Dentistry·Heba MitwalliMichael D Weir
Feb 5, 2022·Journal of Applied Biomaterials & Functional Materials·Jesús Alejandro Torres-BetancourtClaudio Cabral-Romero

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