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  • Title: Effects of new adhesive resin root canal filling materials on vertical root fractures.
    Author: Hanada T, Quevedo CG, Okitsu M, Yoshioka T, Iwasaki N, Takahashi H, Suda H.
    Journal: Aust Endod J; 2010 Apr; 36(1):19-23. PubMed ID: 20377559.
    Abstract:
    The aim of this study was to compare the fracture resistance of roots following root canal therapy using the RC Sealer system, the Epiphany system and the conventional system of gutta-percha and Sealapex. Fifty-six maxillary central incisors were divided into eight groups of seven teeth each, according to master apical file size and obturation systems. Obturation materials in the root canal were vertically loaded using a universal testing machine. Fracture loads were analysed by ANOVA and Tukey comparison, and fracture patterns were analysed with ordinal logistic regression. Master apical file size 80 had a significantly lower fracture load than size 40 (P < 0.05). The groups obturated using the Resilon Cone and the Epiphany Sealer had significantly lower fracture loads than the other groups (P < 0.05). There was no significant improvement in resistance to vertical root fractures using the examined adhesive resin root canal filling systems, compared with conventional gutta-percha and sealer.
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