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 .
Effect of root canal sealers on bond strength of fibreglass posts cemented with self-adhesive resin cements.
AIM This study evaluated the effects of different root canal sealers on the bond strength of a fibreglass post cemented with self-adhesive resin cements . METHODOLOGY The root canals of 50 extracted maxillary single-rooted canine teeth were prepared with the crown-down technique and r and omly divided into five groups according to the sealer used : group 1 : control group , gutta-percha points only ( no sealer ) ; group 2 : AH Plus ( resin-based sealer ) ; group 3 : self-etch Epiphany ( resin-based sealer ) ; group 4 : Sealer 26 ( calcium hydroxide-based sealer ) ; and group 5 : Endomethasone ( zinc oxide eugenol-based sealer ) . The root canals were filled with gutta-percha , the cold lateral compaction technique , except for group 3 where Resilon was used . Post spaces were prepared , and fibreglass posts were cemented with the self-adhesive cement RelyX Unicem . Bonded specimens were sectioned into 1-mm-thick slabs , and a push-out test was performed in a universal machine . Failure modes were observed and classified into five types : ( i ) adhesive between the post and resin cement ; ( ii ) mixed , with resin cement covering 0 - 50 % of the post diameter ; ( iii ) mixed , with resin cement covering 50 - 100 % of the post surface ; ( iv ) adhesive between resin cement and root canal ; and ( v ) cohesive in dentine . Data of bond strength were su bmi tted to anova and Tukey test ( α = 0.05 ) . RESULTS No significant difference was detected between control group , AH Plus , Epiphany and Sealer 26 ( P > 0.05 ) . The Endomethasone group had significantly lower bond strength values than the other sealers ( P < 0.05 ) . The prevalence of mixed fractures and adhesive cement-dentine failure was verified in the eugenol-containing sealer group ; in the control group , the resin-based and calcium hydroxide-based sealer groups , the predominant mode of failure was the mixed type . CONCLUSION Endomethasone interfered negatively with the bond to root dentine ; however , AH Plus , Epiphany and Sealer 26 did not interfere in the bond strength of a fibreglass post cemented with self-adhesive resin cements
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 .