Aims: The purpose of this study was to evaluate and compare the fracture resistance of endodontically treated teeth using three different intra-orifice barriers.
Settings And Design: This study was conducted at the department of conservative dentistry and endodontics, an study.
Subjects And Methods: Forty freshly extracted single-rooted mandibular bicuspids ( = 40) were decoronated to obtain a 14-mm standard root length and all the canals were enlarged with ProTaper up to size F3 and they were obturated with gutta-percha using AH Plus sealer and randomly divided into 4 groups ( = 10). Group I: Control group obturated with gutta-percha only. Groups II, III, and IV had placement of intra-orifice barriers after the removal of 3-mm coronal gutta-percha such that Group II: Ever X posterior; Group III: Beautifil II; and Group IV: Tetric N-Ceram. Mounting of specimens was done in acrylic resin to expose coronal 3 mm and tested using the universal testing machine.
Statistical Analysis Used: Data were analyzed for significance by ANOVA and Tukey's test.
Results: Ever X posterior group showed better fracture resistance and the control group is the least among the groups.
Conclusions: Placement of intra-orifice barriers significantly improves the fracture resistance compared with the control group.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11823572 | PMC |
| http://dx.doi.org/10.4103/JCDE.JCDE_346_24 | DOI Listing |
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