Volume 2, Issue 2 (8-2013)                   3dj 2013, 2(2): 9-17 | Back to browse issues page

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Tavangar S M, davalloo R, Darabi F, Moein N, Nekooie S. Comparison of the Bond Strength of Fiber-Reinforced Composite (FRC) Posts to Radicular Dentin Using Different Adhesive Cement: an in-vitro study. 3dj 2013; 2 (2) :9-17
URL: http://3dj.gums.ac.ir/article-1-44-en.html
1- Department of Restorative Dentistry, Dental school, Guilan University of Medical Sciences, Rasht, Iran
2- Dentist, Dental school
Abstract:   (4421 Views)
Introduction: Retention of fiber reinforced composite posts depends on the bond strength between post and cement, and cement and root dentin. The aim of this study is to evaluate the bond strength of one type of fiber post to radicular dentin with different adhesive cements. Materials and Methods: Crowns of 44 caries-free, human premolar were removed 2 mm below the CEJ and the roots were endodontically treated, then prepared for post cementation. The samples were randomly divided into 4 groups, group 1: Breeze (self-adhesive), group 2: ED Primer II/Panavia F2 (self-etch), group 3: Prime & Bond NT dual-cure /All-Cem (etch & rinse), and group 4: GC Fuji Plus. After post cementation and composite filling of coronal portion(as manufacturers,s instruction) and thermocycling, each specimen was cut into 2 mm thickness from the middle third of the root and the push-out bond strength test was performed and failure modes were recorded. Data were analyzed employing ANOVA and post hoc tests (P value< 0.05). Results: Group 4 showed significantly the high-est bond strength (12.88±3.44 MPa), while group 1 showed significantly lower bond strength than the other groups (5.25±2.98MPa). Also a statistically significant difference was observed between groups 2 and 3 with group 4.( P value<0.021) Conclusion: Retention of fiber post was affected by cement type. The results also indicated that in GC Fuji Plus the chemical interactions between the cement and hydroxyapatite may be important for root dentin bonding. Breeze without any pretreatment procedure cannot obtain the acceptable bond strength.
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Type of Study: Original article | Subject: Radiology
Received: 2013/11/14 | Accepted: 2013/11/17 | Published: 2013/11/17

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