Antibacterial activity of composite resin with glass-ionomer filler particles

Abstract

The purpose of this study was to examine the antibacterial activity of composite resin with glass-ionomer filler particles versus that of contemporary commercial composite resins. Three composite resins were used: Beautifil II (containing S-PRG filler), Clearfil AP-X, and Filtek Z250. Resin blocks were bonded to maxillary first molars, and plaque accumulation on the resin block surface was examined after 8 hours. For the antibacterial test, the number of Streptococcus mutans in contact with the composite resin blocks after incubation for 12 hours was determined, and adherence of radiolabeled bacteria was evaluated. Less dental plaque was formed on Beautifil II resin block as compared to the other two materials. Antibacterial test revealed that there were no significant differences in the number of Streptococcus mutans among the three composite resins. However, the adherence of radiolabeled bacteria to the saliva-treated resin surface was significantly (p<0.01) lower in Beautifil II than in the other two materials. These results suggested that Beautifil II could reduce dental plaque formation and bacterial adherence, leading to prevention of secondary caries.

Effect of staining solutions on color of pre-reacted glass-ionomer containing composites

“…Fluoride release/re-charge of giomers are significantly better than compomers but lower than glass ionomer cements 3,4) . A recent study has reported reduced dental plaque formation and bacterial adherence on giomers when compared to composites 5) . Long-term clinical studies on first generation giomer restoratives has been very promising.…”

Effect of incorporation of surface pre-reacted glass ionomer filler in tissue conditioner on the inhibition of <i>Candida albicans</i> adhesion

“…We consider that the antimicrobial action of the released ions is not bactericidal but bacteriostatic 16) . The filler can reduce the adhesion of not only C. albicans, but also cariogenic bacteria, including Streptococcus mutans, and endodontic bacteria, including Porphyromonas gingivalis, and can prevent plaque formation by inducing mineralization [18][19][20] . These studies suggested that S-PRG filler may be effective in preserving a clean TC surface in the clinical setting.…”

Depth of cure of contemporary bulk-fill resin-based composites

“…The latter, also known as giomers, are based on PRG technology in which acid-reactive fluoride containing glass is reacted with polyacids in the presence of water, freeze-dried, milled, silanized, ground and used as fillers. In addition to fluoride release/re-charge, tooth demineralization inhibition and biocompatibility, these materials also possess antiplaque formation properties [9][10][11][12][13] . Bulk-fill PRG RBCs are available in both packable (Beautifil bulk restorative) and low (Beautifil bulk flowable) viscosities.…”