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:: Vol.6 No.2 ( September-2017) ::
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Fracture strength of teeth restored with fiber post and apical plug
Zahra Sadat Madani, Azadeh Harandi, Ensie Geraily *, Ali Bijani, Samane Gharekhani
Assistant Professor ,Department of Endodontics, Faculty of Dentistry, Golestan University of Medical Sciences,Gorgan,Iran. , ensiegeraily@yahoo.com
Abstract:   (91 Views)
Introduction: The aim of this study was to assess the fracture strength of immature single-rooted teeth restored with fiber post and apical plug.
Materials &Methods: In this experimental study, fifty mandibular premolars were divided into five groups. The coronal and apical portions were cut to obtain15±1 mm root lengths and cleaning &shaping were performed. Peeso reamer #4 was passed the apex by 1 mm to simulate an immature tooth and the apical portion in group 1 to 5 was filled by lateral compaction of 5 mm of gutta-percha; 5 mm of mineral trioxide aggregate (MTA); 5mm of calcium enriched mixture (CEM) cement; 3 mm of MTA and 2 mm of gutta-percha by vertical condensation and 3 mm of CEM cement and 2 mm of gutta-percha, respectively. The remaining portion was restored with glass fiber post and self-etch cement and composite cores were built. Compressive load was applied at a crosshead speed of 1 mm/minute at 90 ° angle until fracture in a universal testing machine. Data were analyzed using ANOVA in SPSS16.
Results: The mean±SD fracture strength was recorded 607.8±162.41 N, 700.48±183.24 N, 595.16±171.77 N, 886.36±382.92N, and 868.87±440.36 N in groups one to five, respectively.  No significant difference was observed among the experimental groups (P=0.1).
Conclusion: In immature teeth requiring an apical plug, fiber post can be placed directly on the MTA and CEM apical plugs and there is no need for placing gutta-percha on the plug.
Keywords: Premolar, Root Canal Therapy, Tooth Fractures
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Type of Study: Original Article | Subject: Endodontics
* Corresponding Author Address: Gorgan,Iran.
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Madani Z S, Harandi A, Geraily E, Bijani A, Gharekhani S. Fracture strength of teeth restored with fiber post and apical plug . CJDR. 2017; 6 (2) :15-22
URL: http://cjdr.ir/article-1-215-en.html
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مجله تحقیقات دندانپزشکی کاسپین Caspian Journal of Dental Research
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