Resistance to vertical root fracture of root filled teeth using different conceptual approaches to canal preparation

International Endodontic Journal
M PradoR A Simão

Abstract

To evaluate the resistance to vertical root fracture of root filled teeth using different root canal preparation concepts: apical stop and continuously tapering preparation, with different foraminal enlargement. In addition, the effect of filling associated with these different concepts was assessed. Ninety single-rooted premolars were used. The crowns were removed to standardize the root length at 11 mm. Ten roots were not instrumented and not filled (control group). The other roots were divided into four groups (n = 20): apical stop to finishing file size 25, 0.08 taper; apical stop to finishing file size 45, 0.02 taper; continuously tapering preparation to finishing file size 25, 0.08 taper; and continuously tapering preparation to finishing file size 45, 0.02 taper. Afterwards, 10 roots of each group were root filled using Gutta-percha and AH Plus. A continuous wave of condensation was used as the filling technique. The roots were evaluated as regards resistance to vertical fracture using a universal testing machine. The data were evaluated using the Kruskal-Wallis and Mann-Whitney tests. No significant difference in performance was observed between continuously tapering preparation size 25, 0.08 taper and apical stop size ...Continue Reading

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Citations

Dec 10, 2020·Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc·Ezgi Doğanay YıldızBuket Dinçer

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