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:: Volume 33, Number 3 (Summer 2015) ::
J Dent Sch GYEAR__, 33(3): 189-195 Back to browse issues page
Intracanal Retention of Glass Fiber Posts
M. Akbari *, MJ. Moghaddas, SH. Gilshan, A. Boruzi Niat
Associated Professor, Dept. of Restorative Dentistry, Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran. , akbarim@mums.ac.ir
Abstract:   (3210 Views)

  Objective: Fiber-reinforced composite (FRC) posts have recently become more popular for restoring endodontically treated teeth because of providing esthetics, better stress distribution and lower risk of root fracture. Resistance against tensile forces dislodging the post from the root canal is a prerequisite for these posts. This study aimed to evaluate the tensile retention (strength) of intracanal glass fiber posts produced by three manufacturers.

  Methods: In this interventional study, the crowns of 30 sound human maxillary central incisors were cut at the cementoenamel junction and the roots were endodontically treated. Post space was prepared to a length of 10mm and the specimens were divided into three groups of 10. HtCo, Anthogyr and Svenskposts were used in groups 1, 2 and 3, respectively. The posts were cemented with Panavia F2 resin cement according to the manufacturer’s instructions. Specimens were then immersed in water at 37°C for 30 days and were then subjected to 7500 thermal cycles between 5-55°C. Intracanal tensile retention (strength) was measured at a crosshead speed of 0.5 mm/min. Data were analyzed using one-way ANOVA at p<0.05 level of significance.

  Results: The mean retention was 188.53 (15.43), 183.81 (16.37) and 192.19 (17.50) N in Htco, Anthogyr and Svensk posts, respectively. Statistical analyses showed no significant difference in this regard among groups (p=0.111).

  Conclusion: Within the limitations of this study, retention of HtCo glass fiber posts in the root canals was similar to that of two other posts.

Keywords: Bond strength, Glass fiber post, HtCo post, Resin cement, Retention, Thermal cycles
Full-Text [PDF 216 kb]   (308 Downloads)    
Type of Study: Original Article | Subject: Special
Received: 2015/08/31 | Accepted: 2015/08/31 | Published: 2015/08/31
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Akbari M, Moghaddas M, Gilshan S, Boruzi Niat A. Intracanal Retention of Glass Fiber Posts. J Dent Sch. 2015; 33 (3) :189-195
URL: http://jds.sbmu.ac.ir/article-1-1425-en.html
Volume 33, Number 3 (Summer 2015) Back to browse issues page
مجله دانشکده دندانپزشکی دانشگاه علوم پزشکی شهید بهشتی Shahid Beheshti University Dental Journal
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