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 .
Comparison of different dentin pretreatment protocols on the bond strength of glass fiber post using self-etching adhesive.
INTRODUCTION This study compared the influence of different irrigants with and without ultrasound or laser irradiation on the bond strength of glass fiber posts using a self-etching adhesive in a supplementary dentin pretreatment . METHODS Ninety bovine incisor roots were divided into 3 groups according to the irrigant tested : 2 % chlorhexidine ( CHX ) ( n = 30 ) ; 2.5 % sodium hypochlorite ( NaOCl ) ( n = 30 ) , and saline solution ( control ) ( n = 30 ) . Each group was r and omly divided into 3 subgroups according to the supplementary dentin pretreatment : ultrasound , Nd : YAG laser , and nonsupplemented ( control ) . A self-etching adhesive system ( Futurabond DC ; VOCO GmbH , Cuxhaven , Germany ) was used , and the glass fiber posts were cemented with dual-cure epoxy-based luting agent ( Bifix QM , VOCO GmbH ) . All roots were sectioned transversely , and the push-out test was performed . Failure mode analysis was also evaluated . RESULTS Bond strength decreased significantly after the use of 2.5 % NaOCl in all root thirds ( P < .05 ) . CHX showed no difference in the mean bond strength value compared with saline solution ( P > .05 ) . The supplementary dentin pretreatment using the Nd : YAG laser or ultrasound did not improve the bond strength values for both NaOCl and CHX ( P > .05 ) . Moreover , the apical third exhibited the lowest mean bond strength values ( P < .05 ) . Analysis indicated that the predominant failure mode was the mixed type . CONCLUSIONS Regardless of the irrigant used , the supplementary dentin pretreatment with ultrasound or laser irradiation showed no improvement in bond strength . Also , the use of NaOCl decreased the bond strength of glass fiber posts using a self-etching adhesive system , whereas CHX preserved it
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 .