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:: Volume 22, Issue 4 (Winter 2005) ::
J Dent Sch GYEAR__, 22(4): 574-580 Back to browse issues page
The effect of different surface treatments on the bond strength of composite resin core to carbon fiber posts
Zahra Jaberi Ansari Corresponding Author: Dr. * 1, Mahdi Abed Kahnamuei Dr., Maryam Moezzy Zadeh Dr.
Abstract:   (7075 Views)

Purpose: Carbon fiber posts are widely used in dentistry. The most problem is their low bond strength with composite resin utilized as core. The aim of this study was to evaluate the effect of different surface treatments on the tensile bond strength of composite resin core to carbon fiber posts.

Methods & Materials: Thirty six posts free of defects, were selected and randomly divided into 4 groups and treated as follows: Group1: No treatment (control). Group2: Surface treatment with Single Bond Group3: Surface treatment with Sandblast + Single Bond Group4: Surface treatment with Sandblast + Silane + Single Bond. A cylindrical composite resin core (5×5×5 mm) was built around each post using Z100. Post-core assemblies were tested for tensile failure by Instron testing machine at a cross-head speed of 10 mm/min. The bond strength was assessed by Newton (N).

Results: The tensile bond strength were respectively, Group 1: 262.33± 23.37N, Group 2: 522.77± 37.33N, Group 3: 613.50± 39.93N, Group 4: 641.00± 43.35N. ANOVA and Scheffe test showed that group 1was the least retentive group of all (p<0.05), and group 3 and group 4 were significantly more retentive than group 2 (p<0.05).There was no significant difference between group 3 and group 4.

Conclusion: The surface treatment of carbon fiber posts significantly improved their retention to composite resin.

J Dent Sch 2005 22(4): 574

Keywords: Post, Carbon fiber post, Surface treatment
Full-Text [PDF 173 kb]   (1049 Downloads)    
Type of Study: Original Article | Subject: Special
Received: 2006/09/6
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Jaberi Ansari Z, Abed Kahnamuei M, Moezzy Zadeh M. The effect of different surface treatments on the bond strength of composite resin core to carbon fiber posts. J Dent Sch. 2005; 22 (4) :574-580
URL: http://jds.sbmu.ac.ir/article-1-380-en.html


Volume 22, Issue 4 (Winter 2005) Back to browse issues page
مجله دانشکده دندانپزشکی دانشگاه علوم پزشکی شهید بهشتی Shahid Beheshti University Dental Journal
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