Efficacy of a combined nanoparticulate/calcium hydroxide root canal medication on elimination of Enterococcusfaecalis , Abstract The purpose of this study was to evaluate the efficacy of Ca(OH)2 with or without a silver nanoparticle suspension to eliminate Enterococcus faecalis from root canals. A total of 66 extracted human single-rooted teeth contaminated with E.faecalis were treated with 10% Ca(OH)2 alone, Ca(OH)2 with nanosilver or sterile water (as a negative control). Samples were obtained with paper points and Gates-Glidden burs at 1 and 7days after root canal preparation and the number of colony-forming units (CFU) was determined. The number of CFUs observed after dressing with Ca(OH)2+nanosilver was significantly less than the number observed with Ca(OH)2 alone after 1 or 7days (P\u003C0.001, P\u003C0.001). No differences in antimicrobial properties were observed between the two time points in the Ca(OH)2+nanosilver group (P>0.05). Higher antimicrobial efficacy was observed in the Ca(OH)2 group after 7days than 1day (P\u003C0.001). This study highlighted the potential advantage of using a mixture of Ca(OH)2 and nanosilver for intracanal medicament. , http://bit.ly/12sxPJR

Efficacy of a combined nanoparticulate/calcium hydroxide root canal medication on elimination of Enterococcusfaecalis , Abstract The purpose of this study was to evaluate the efficacy of Ca(OH)2 with or without a silver nanoparticle suspension to eliminate Enterococcus faecalis from root canals. A total of 66 extracted human single-rooted teeth contaminated with E.faecalis were treated with 10% Ca(OH)2 alone, Ca(OH)2 with nanosilver or sterile water (as a negative control). Samples were obtained with paper points and Gates-Glidden burs at 1 and 7days after root canal preparation and the number of colony-forming units (CFU) was determined. The number of CFUs observed after dressing with Ca(OH)2+nanosilver was significantly less than the number observed with Ca(OH)2 alone after 1 or 7days (P\u003C0.001, P\u003C0.001). No differences in antimicrobial properties were observed between the two time points in the Ca(OH)2+nanosilver group (P>0.05). Higher antimicrobial efficacy was observed in the Ca(OH)2 group after 7days than 1day (P\u003C0.001). This study highlighted the potential advantage of using a mixture of Ca(OH)2 and nanosilver for intracanal medicament. , http://bit.ly/12sxPJR , via Dental Teach " Daily Dental Info " http://www.facebook.com/photo.php?fbid=597344216956798&set=a.597344210290132.1073741862.110664842291407&type=1