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Year : 2017  |  Volume : 14  |  Issue : 2  |  Page : 96-103

Fracture resistance of rehabilitated flared root canals with anatomically adjustable fiber post

Department of Pedodontics, Faculty of Dentistry, Kafr El-Sheikh University, Kafr El-Sheikh, Egypt

Correspondence Address:
Talat M Beltagy
Department of Pedodontics, Faculty of Dentistry, Kafr El-Sheikh University, El-Geish Street, Kafr El-Sheikh 33511
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/tdj.tdj_16_17

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Aim: This study aimed to evaluate the fracture resistance of the rehabilitated overflared canals with anatomically adjustable everStick post. Patients and methods: Thirty extracted human maxillary central incisors with close similarity were selected. The specimens were coronally horizontally sectioned, endodontically treated and randomly divided into three groups (n = 10). Twenty of specimens were overflared, leaving 5 mm gutta percha seal. Group I: overflared specimens were rehabilitated with everStick post. Group II: overflared specimens were rehabilitated with EasyPost/composite. Group III (control group): specimens had normal unflared canals and were restored with EasyPost/core system. Composite resin was used to complete the core building-up for all groups. Fracture resistance of all specimens was measured using Instron testing machine. Statistical analyses were submitted to one-way analysis of variance and a post-hoc test. The level of significance was adopted atP value less than 0.05. Results: The results showed that the control group recorded the highest fracture resistance values, followed by everStick and EasyPost/composite group and the difference was significant among them (P < 0.05). Mode of failures showed 76.7% of specimens exhibited a repairable mode of failure while 23.3% displayed nonrepairable mode. Root fracture was recorded in one specimen of everStick group and in two specimens of EasyPost/composite group, however, four specimens in the control group displayed EasyPost fracture. Conclusion: The use of anatomically adjustable everStick post in rehabilitation of compromised teeth with flared canals seems to be significantly effective, promising in the improvement of fracture resistance, and increase the favorable mode of failure.

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