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 .
Effects of dentin surface treatments including Er,Cr:YSGG laser irradiation with different intensities on the push-out bond strength of the glass fiber posts to root dentin
Abstract Objective . Intra-canal post systems are commonly used to restore root-filled teeth . Bond strengths of the posts can be affected by various surface treatments of the post or the dentin . The aim of this study was to evaluate the effects of dentin surface treatments including erbium-chromium ; yttrium-sc and ium-gallium-garnet ( Er , Cr : YSGG ) laser irradiation with different intensities on the push-out bond strength of the glass fiber posts to root dentin . Material s and methods . Forty single-rooted human maxillary incisors were filled and post spaces were prepared . After these procedures , the specimens were divided r and omly into four groups according to the dentin surface treatments , as follows : ( i ) untreated surface ( control ) , ( ii ) 1W Er , Cr : YSGG laser application , ( iii ) 2W Er , Cr : YSGG laser application and ( iv ) 3W Er , Cr : YSGG laser application . Then the posts were cemented into the root canals using dual-cured resin cement . Bonded specimens were cut into 1-mm-thick slices and push-out tests were performed using a universal testing device . All specimens were loaded until fracture and the failure modes were evaluated with a stereomicroscope at 32 × magnification . Representative specimens were analyzed by scanning electron microscopy . Data were analyzed using a one-way ANOVA , Tukey and Wilcoxon tests . Results . The bond strength values ranged from 3.22–4.68 MPa . There were no statistically significant differences among the groups , regardless of the different levels . The coronal and middle levels of the post space had significantly higher bond strength values compared with the apical level ( p < 0.05 ) . Conclusion . Er , Cr : YSGG laser irradiation with different intensities did not increase the bond strength of the fiber posts to the root canal dentin walls
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 .