Restorative Dentistry and Endodontics

  • 제39권4호
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  • Pages.303-309
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  • 2014
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  • 2234-7658(pISSN)
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  • 2234-7666(eISSN)
대한치과보존학회 (The Korean Academy of Conservative Dentistry)
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Effect of antioxidants on push-out bond strength of hydrogen peroxide treated glass fiber posts bonded with two types of resin cement

  • Khoroushi, Maryam (Department of Operative Dentistry, School of Dentistry, Isfahan University of Medical Sciences) ;
  • Mazaheri, Hamid (Dental Materials Research Center, Isfahan University of Medical Science) ;
  • Tarighi, Pardis (Department of Operative Dentistry, School of Dentistry, Isfahan University of Medical Sciences) ;
  • Samimi, Pouran (Department of Operative Dentistry, School of Dentistry, Isfahan University of Medical Sciences) ;
  • Khalighinejad, Navid (Dental Materials Research Center, Isfahan University of Medical Science)
  • 투고 : 2014.03.01
  • 심사 : 2014.07.27
  • 발행 : 2014.11.29
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초록

Objectives: Hydrogen peroxide ($H_2O_2$) surface treatment of fiber posts has been reported to increase bond strength of fiber posts to resin cements. However, residual oxygen radicals might jeopardize the bonding procedure. This study examined the effect of three antioxidant agents on the bond strength of fiber posts to conventional and self-adhesive resin cements. Materials and Methods: Post spaces were prepared in forty human maxillary second premolars. Posts were divided into five groups of 8 each: G1 (control), no pre-treatment; G2, 10% $H_2O_2$ pre-treatment; G3, G4 and G5. After $H_2O_2$ application, Hesperidin (HES), Sodium Ascorbate (SA) or Rosmarinic acid (RA) was applied on each group respectively. In each group four posts were cemented with Duo-Link conventional resin cement and the others with self-adhesive BisCem cement. Push-out test was performed and data were analyzed using 2-way ANOVA and tukey's post-hoc test (${\alpha}=0.05$). Results: There was a statistically significant interaction between the cement type and post surface treatment on push-out bond strength of fiber posts (p < 0.001, F = 16). Also it was shown that different posts' surface treatments significantly affect the push-out bond strength of fiber posts (p = 0.001). $H_2O_2$ treated posts (G2) and control posts (G1) cemented with Duo-link showed the highest ($15.96{\pm}5.07MPa$) and lowest bond strengths ($6.79{\pm}3.94$) respectively. Conclusions: It was concluded that $H_2O_2$ surface treatment might enhance the bond strength of fiber posts cemented with conventional resin cements. The effect of antioxidants as post's surface treatment agents depends on the characteristics of resin cements used for bonding procedure.

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피인용 문헌

  1. Effects of hydrogen peroxide pretreatment and heat activation of silane on the shear bond strength of fiber-reinforced composite posts to resin cement vol.8, pp.2, 2016, https://doi.org/10.4047/jap.2016.8.2.94
  2. Test methods for bond strength of glass fiber posts to dentin: A review vol.93, pp.1-2, 2017, https://doi.org/10.1080/00218464.2016.1184094
  3. Dentin pretreatment with Er:YAG laser and sodium ascorbate to improve the bond strength of glass fiber post pp.1435-604X, 2018, https://doi.org/10.1007/s10103-018-2579-5
  4. The influence of different treatments on fiber post and root canal to bond strength of fiber post vol.35, pp.9, 2014, https://doi.org/10.1080/01694243.2020.1829322