Incorporation of an antibacterial and radiopaque monomer in to dental resin system

Antibacterial activity, cytotoxicity and mechanical behavior of nano-enhanced denture base resin with different kinds of inorganic antibacterial agents

“…Thus, a restorative material that possesses antibacterial properties and inhibits bacterial growth around the restoration would be desirable. However, other problems must not be overlooked, that are the mechanical properties should not be weakened Antibacterial activity, cytotoxicity and mechanical behavior of nano-enhanced denture base resin with different kinds of inorganic antibacterial agents 18) . Therefore, the choice of specific antibacterial agents is important for incorporation into PMMA.…”

Evaluation of intensity of artefacts in CBCT by radio-opacity of composite simulation models of implantsin vitro

“…Methacrylate monomers such as Bis-GMA and TEGDMA are widely used in dental resin-based materials as well as in FRC implant designs used in cranial and maxillofacial area, and were thus considered appropriate for use in this study as well. [19][20][21] In general, dental resin-based materials are required to be biocompatible, adhesive, appropriate in terms of mechanical properties, [21][22][23] radio-opaque and antibacterial; in addition, polymerization shrinkage and water solubility should be as small as possible. [24][25][26] In cranial and maxillofacial areas, resin-based composite implants are also supposed to attach to the bone.…”

Quaternary ammonium compounds in dental restorative materials

“…The antibacterial effect against two E. faecalis strains (ATCC and an endodontic isolate) were assessed, and results had shown that addition of QPEI nanoparticles improved the killing ability of PCS against biofilms of both E. faecalis strains and the effects of AH Plus on the biomass of biofilms from the ATCC strain. Moreover, there were no relevant changes in physicochemical and 95) quaternary ammonium polyethyleneimine QPEI unpolymerizable composite resin 24) , endodontic materials [89][90][91] quaternary ammonium dimethacrylate QADM/IMQ polymerizable composite resin [25][26][27]32) , adhesive system 42) 2-methacryloxylethyl dodecyl methyl ammonium bromide MAE-DB polymerizable composite resin 28,29) 2-methacryloxylethyl hexadecyl methyl ammonium bromide MAE-HB polymerizable composite resin 28,29) 2-Dimethyl-2-dodecyl-1-methacryloxyethyl ammonium iodine DDMAI polymerizable composite resin 30) quaternary ammonium methacrylate QAM polymerizable composite resin 31) , adhesive system 5,53,54) 2-methacryloyloxyethyl phosphorylcholine MPC polymerizable composite resin 33) dimethylaminododecyl methacrylate DMADDM polymerizable adhesive system [43][44][45] quaternary ammonium methacrylate polymer QAMP unpolymerizable adhesive system [46][47][48] methacryloxylethyl cetyl ammonium chloride DMAE-CB polymerizable adhesive system [49][50][51][52] benzalkonium chloride BAC unpolymerizable adhesive system [55][56][57] , glass ionomer cement 73,74) , endodontic materials 87) poly-2-methacry...…”

“…Therefore, modified resins had strong and long-lasting antimicrobial effects. Besides that, 2-Dimethyl-2-dodecyl-1-methacryloxyethyl ammonium iodine (DDMAI) was added into a resin system by He et al, and they found that DDMAI could endow resin system with radiopacity and antimicrobial effectiveness without compromising in mechanical properties 30) . Then, a series of antimicrobial quaternary ammonium methacrylate monomers (QAM) with different substituted alkyl chain lengths (from CL10 to CL18) were incorporated into commonly used dental resin as immobilized antimicrobial agents by above authors.…”

“…It has been shown that there is microleakage on restoration margins, and these gaps can be colonized by oral bacteria, thus resulting in secondary caries, which makes the restoration replacement necessary 22,23) . In order to prevent or diminish biofilm accumulation over composite and in the restorations margins, and also to improve the durability of prostheses, antimicrobial restorative materials have been developed, especially through the incorporation of quaternary ammonium to composite resins [24][25][26][27][28][29][30][31][32] . In 2006, a research developed by Beyth et al 24) reported that 1 wt% quaternary ammonium polyethyleneimine (QPEI) nanoparticles immobilized into composite or fluid resin had strong antimicrobial activity upon contact without leach-out of the nanoparticles and compromising in mechanical properties.…”