In conclusion , this review suggests that the use of NaOCl/EDTA results in the retention of FGPs and may thus be recommended as a post-space cleaning method influencing the luting procedure
The presence of residues within the root canal after post-space preparation can influence the bond strength between resin cement and root dentin when using fiberglass posts ( FGPs ) .
Currently , there is no consensus in the literature regarding what is the best solution for the removal of debris after post-space preparation .
This systematic review involved " in vitro " studies to investigate if cleaning methods of the root canal after post-space preparation can increase the retention of FGPs evaluated by the push-out test .
Decontamination efficacy of photon-initiated photoacoustic streaming (PIPS) of irrigants using low-energy laser settings: an ex vivo study.
AIM To assess ex vivo , the antibacterial effectiveness of photon-initiated photoacoustic streaming ( PIPS ) of irrigants using an Er : YAG laser equipped with a newly design ed , stripped and tapered tip in extracted teeth with infected root canals . METHODOLOGY One hundred and forty-eight single-rooted extracted teeth were prepared to a size 25 , 0.06 taper . The specimens were sterilized , and all teeth except ten ( negative control group ) were inoculated with Enterococcus faecalis and incubated in a CO(2 ) chamber at 37 ° C for 15 days in Eppendorf tubes filled with trypticase soy broth medium changed every 2 days . Infected teeth were then r and omly divided into four test groups ( n = 32 for each ) : pulsed erbium/YAG laser at nonablative setting s for 30 s with sterile bi-distilled water ( Group A ) or 5 % sodium hypochlorite ( NaOCl ) ( Group B ) ; without laser-activated sterile bi-distilled water irrigation for 30 s ( Group C ) or 5 % NaOCl irrigation for 30 s ( Group D ) ; the positive control group received no treatment in infected teeth ( n = 10 ) . Colony-forming units ( CFUs ) were counted from bacteriologic sample s taken before ( S1 ) and after treatment ( S2 ) . Data were analysed by Kruskal-Wallis and post hoc Dunn 's multiple comparison tests . RESULTS CFU counts were significantly lower in 5 % NaOCl groups with or without laser activation than in sterile bi-distilled water without laser activation group ( P < 0.001 ) . Moreover , there was a significant difference between bi-distilled water groups with or without laser activation ( P < 0.001 ) . Sodium hypochlorite with laser activation group had the greatest CFU reduction , which was significantly greater than that evident in bi-distilled water groups with or without laser activation ( P < 0.001 ) . There were no significant differences between 5 % NaOCl groups with or without laser activation ( P > 0.05 ) . None of the four groups generated negative sample s predictably . CONCLUSIONS Under the conditions of this ex vivo study , there were no significant differences in bacterial reduction between the laser and NaOCl or NaOCl alone groups . [ Correction added after online publication , 18th April 2012 : The following statement has been deleted : ' Thus , the use of a laser did not improve microbial killing over and above use of NaOCI alone . ' ]
In conclusion , this review suggests that the use of NaOCl/EDTA results in the retention of FGPs and may thus be recommended as a post-space cleaning method influencing the luting procedure
The presence of residues within the root canal after post-space preparation can influence the bond strength between resin cement and root dentin when using fiberglass posts ( FGPs ) .
Currently , there is no consensus in the literature regarding what is the best solution for the removal of debris after post-space preparation .
This systematic review involved " in vitro " studies to investigate if cleaning methods of the root canal after post-space preparation can increase the retention of FGPs evaluated by the push-out test .