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ORIGINAL ARTICLE
Year : 2014  |  Volume : 4  |  Issue : 3  |  Page : 109-114

Evaluation of the flexural strength of carbon, quartz, and glass fiber-based posts


1 Department of Conservative Dentistry and Endodontics, Vishnu Dental College and Hospital, Bhimavaram, East Godavari District, Andhra Pradesh, India
2 Department of Restorative Dental Sciences, College of Dentistry, King Khalid University, Abha, Saudi Arabia
3 Department of Conservative Dentistry and Endodontics, SDM College of Dental Sciences and Hospital, Sattur, Dharwad, India
4 Navodaya Dental College and Hospital, Raichur, Karnataka, India

Correspondence Address:
Krishna Rao Kilaru
Department of Restorative Dental Sciences, College of Dentistry, King Khalid University, Abha, Saudi Arabia

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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1658-5984.138136

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Objectives: This study was done to evaluate the flexural strength of carbon, quartz, and glass fiber posts by means of three-point bending test. Materials and Methods: Thirty pre-fabricated fiber posts were used and divided into three groups. Group I carbon fiber posts (C-Post), group II quartz fiber post (Aestheti Plus), group III glass fiber post (Para Post White) Ten posts (N = 10) were used for each experimental group and were measured with digital caliper before test accomplishment. The fracture load of post specimens was measured, and flexural strength was obtained by the formula using S = 8FL/pd 3 . The values in Kgf/mm 2 were obtained and calculated to Mpa and submitted to ANOVA (a = 0.01) and to the Tukey's test. Results: The mean values of flexural strength show that group II quartz fiber posts (666 MPa) are significantly higher than group I carbon fiber (614 MPa) and group III glass fiber (575 MPa). C onclusion: Hence, this study concluded that quartz fiber post showed significantly higher flexural strength values. Further scope of this study lies in the evaluation and evolution of a restorative materials used for post and core preparation, which have modulus of elasticity in harmony with that of dentin and near-natural esthetic appearance.


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