Journal of Conservative Dentistry
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ORIGINAL ARTICLE
Year : 2019  |  Volume : 22  |  Issue : 4  |  Page : 376-380

A comparative evaluation of fracture resistance of endodontically treated premolar teeth reinforced with different prefabricated and custom-made fiber-reinforced post system with two different post lengths: An in vitro study


1 Department of Conservative Dentistry and Endodontics, Maharishi Markandeshwar College of Dental Sciences and Research, Mullana, Ambala, Haryana, India
2 Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India

Correspondence Address:
Dr. Anamika Thakur
House No 811-C, Trishla City, Zirakpur - 140 603, Punjab
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/JCD.JCD_52_19

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Aims: The aim of this study is to determine the mean failure load for each postsystem and the relationship between post lengths with the mean failure loads. Materials and Methods: Ninety single-rooted decoronated mandibular premolar teeth were endodontically treated and randomly assigned to three groups with respect to their post length (2/3rd and ½ of the root length). The first two groups were randomly divided into four subgroups, restored with the following postsystem: polyethylene-woven fiber posts, glass fiber tape, prefabricated carbon, and glass fiber posts. A composite core with no post served as control. All posts were cemented using dual-cure resin cement, and the same was used for core buildup. The standard cores were formed in each group. All the specimens were tested in a universal testing machine, and the load was calculated. Results: One-way analysis of variance (ANOVA) showed that prefabricated glass fiber post had significantly highest fracture resistance when compared to other prefabricated and custom fiber-reinforced composite posts. Two-way ANOVA demonstrated no significant difference among the post lengths. Conclusion: The results of this study showed that glass fiber posts showed higher fracture load, but post length did not significantly increase the fracture resistance of endodontically treated teeth.


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