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 eugenol-containing sealer and post diameter on the retention of fiber reinforced composite posts
Background : Fiber reinforced composite ( FRC ) posts are cemented with resin cements . It is reported that using resin cements in canals sealed with eugenol-containing sealers reduces the post retention . However , there is controversy on the subject . Aims : The aim was to investigate the influence of eugenol-containing sealers and the amount of dentin removal from root canal with different post diameters on retention of FRC posts . Setting s and Design : It was an in vitro study Material s and Methods : The roots of sixty teeth were cut with 14 mm distance from the apex and were instrumented to the working-length of 13 mm . The teeth were r and omly distributed into 2 groups ( n = 30 ) . Following storage in normal saline for 7 days , the sample s in both the groups were further divided into 3 subgroups ( n = 10 ) . Canals in the experimental subgroups ( I , II , III ) were obturated by gutta-percha and eugenol-containing sealer ; and in the control subgroups ( IV , V , VI ) without any sealer . After storage in normal saline for 7 days , the post space was prepared by # 3 , # 2 , and # 1 drills of DT Light-Post system . Post was cemented with Panavia-F2.0 resin-cement . A composite core was built for each sample . All sample s were thermo cycled for 1000 cycles . The sample s were tested for post retention with a mechanical testing machine . Statistical Analysis : Data were analyzed by two-way ANOVA and Tukey-HSD test . Results : There was not a significant difference in retention between FRC posts # 1 and # 2 ( P > 0.05 ) . Post # 3 was more retentive than posts # 1 and # 2 ( P < 0.05 ) . ZOE sealer significantly reduced the retention of posts ( P = 0.024 ) , however , increasing post-space diameter significantly increased post retention in canals coated with ZOE sealer ( P = 0.002 ) . Conclusions : Eugenol-containing sealer reduced the retention of FRC posts cemented with resin cement . Removing more dentin from root-canals treated with eugenol-containing sealer for placing larger diameter posts caused an increase in post retention
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 .