Although the majority of the studies reported that the use of root canal sealers increased the fracture resistance of endodontically treated teeth , conflicting evidence was found for the reinforcing effect of resin , glass ionomer , and calcium silicate-based sealers while there was moderate evidence for zinc oxide eugenol-based sealers in favor of no reinforcing effect .
Conclusion On the basis of available evidence , the use of root canal sealer increases the fracture resistance of endodontically treated teeth .
Regarding the comparisons among the sealers , no conclusions could be drawn for the superiority of one sealer type to another .
Objective The purpose of this study was to systematic ally review and critically analyze the published data of in vitro studies testing the effect of root canal sealers on the fracture resistance of endodontically treated teeth .
Fracture resistance of roots obturated with novel hydrophilic obturation systems
Aim : Comparative assessment of fracture resistance of roots obturated with three hydrophilic systems — novel CPoint system , Resilon/Epiphany system , and EndoSequence BC sealer ; and one hydrophobic gold st and ard gutta-percha/AHPlus system . Material s and Methods : Ninety freshly extracted , human , single-rooted m and ibular premolars were selected . The specimens were decoronated and st and ardized to a working length of 13 mm . The teeth were r and omly divided into six groups ( n = 15 ) . In Group A , teeth were left unprepared and unfilled ( negative control ) . Rest of the groups were prepared by using ProTaper system up to a master apical file F3 ; followed by which Group B was left unobturated ( positive control ) ; Group C , novel CPoint System ; group D , Resilon/Epiphany system , Group E EndoSequence BC sealer , and Group F gutta-percha and AH Plus . Specimens were stored for 2 weeks at 100 % humidity . Each group was then subjected to fracture testing by using a universal testing machine . The force required to fracture each specimen was recorded and the data was analyzed statistically using analysis of variance ( ANOVA ) test and Tukey 's post-hoc test . Results : The hydrophilic obturation systems have shown to exhibit significantly higher fracture resistance as shown by the values in Groups C , D , and E ( P < 0.05 ) when compared with Group F. Within hydrophilic groups there was significant difference between Group D and Groups C and E ( P < 0.05 ) , while Groups C and E had no significant difference ( P > 0.05 ) . Conclusion : In contrast to hydrophobic systems , hydrophilic systems showed higher fracture resistance in a single-rooted premolar
Although the majority of the studies reported that the use of root canal sealers increased the fracture resistance of endodontically treated teeth , conflicting evidence was found for the reinforcing effect of resin , glass ionomer , and calcium silicate-based sealers while there was moderate evidence for zinc oxide eugenol-based sealers in favor of no reinforcing effect .
Conclusion On the basis of available evidence , the use of root canal sealer increases the fracture resistance of endodontically treated teeth .
Regarding the comparisons among the sealers , no conclusions could be drawn for the superiority of one sealer type to another .
Objective The purpose of this study was to systematic ally review and critically analyze the published data of in vitro studies testing the effect of root canal sealers on the fracture resistance of endodontically treated teeth .