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 .
The effect of resin-based sealers on fracture properties of dentine.
AIM To determine whether resin-based sealer cements are able to strengthen root dentine , as measured by work of fracture ( Wf ) , micro-punch shear strength ( MPSS ) and resistance to vertical root fracture ( VRF ) . METHODOLOGY One hundred and twenty extracted premolar teeth were r and omly assigned amongst four treatments before testing : intact , root canals prepared but unfilled , or root filled using epoxy- or urethane dimethacrylate (UDMA)-based sealer ( plus core material ) . Sample s were then prepared for measuring Wf , MPSS or VRF using st and ard test procedures . Data were analyzed using one-way anova with significance set at P < 0.05 . RESULTS For all three tests , root canals filled using epoxy resin-based sealer were not statistically significantly different compared with UDMA resin ( P = 1 for Wf , P = 0.7 for MPSS and P = 0.12 for VRF ) , or different from both sound and prepared dentine ( P > 0.05 ) . There was also no significant difference between sound dentine and prepared dentine for both Wf ( P = 0.92 ) and resistance to VRF ( P = 1 ) . CONCLUSIONS Neither epoxy nor UDMA resins used as sealer cements enhanced fracture resistance of root dentine when placed within root canals of extracted teeth
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 .