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 .
Evaluation of Fracture Resistance of Endodontically Treated Teeth Filled with Gutta-Percha and Resilon Obturating Material: An In Vitro Study
Background : As per many studies endodontically treated teeth are widely considered to be more susceptible to fracture than vital teeth . Obturation strains and post placement have been a major cause of vertical root fracture . Present study was conducted to compare in vitro fracture resistance after filling with either Gutta-percha or Resilon by lateral condensation techniques in root canals . This study evaluated a new thermoplastic synthetic polymer based on polyester , which contains bioactive and radiopaque filler , Resilon performs every way as Gutta-percha except that it allows the bonding agent to attach to the resin core and the dentin wall thus forming a monoblock . Material s and Methods : In the present study 90 freshly extracted single-rooted human m and ibular premolar teeth endodontically treated , were cut at the cemento-enamel junction , and were r and omly divided into three groups of 30 each as teeth of Group A ( Control ) received no obturation , Group B teeth were obturated using Gutta-percha/AH26 , and Group C teeth were obturated using Resilon/Epiphany obturating kit . Each specimen were mounted in acrylic in a polyvinyl ring and then tested for fracture resistance with the help of an universal testing machine . A compressive force was applied until the root is fractured . The data were subjected to analysis of variance for comparing mean difference of fracture resistance among three groups . Multiple comparisons among these groups were carried out by non-parametric Kruskal – Wallis analysis . A p value of < 0.0001 was considered a statistically significant difference . Results : The results obtain after analysis showed no significant differences in the fracture resistance between the two tested groups of endodontic sealers . Conclusion : Within the limitation of the present in-vitro study , Resilon/Epiphany sealer performs better than Gutta-percha/AH 26 sealer with lateral condensation technique
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 .