Effect of Casein Phosphopeptide Amorphous Calcium Phosphate Conditioning on Microtensile Bond Strength of Three Adhesive Systems to Deep Dentin

  • Mohammad Ali Mohammadi Torkani ORCID Department of Restorative Dentistry, Faculty of Dentistry, Urmia University of Medical Sciences, Urmia, Iran
  • Sepideh Mesbahi Dentistry student, Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran
  • Amir Ardalan Abdollahi ORCID Mail Department of Endodontics, School of Dentistry, Urmia University of Medical Sciences, Urmia, Iran
Keywords:
Casein Phosphopeptide-Amorphous Calcium Phosphate Nanocomplex, Clearfil Bonding Agent, Dentin, Tooth Remineralization

Abstract

Objectives: This study aimed to assess the effect of casein phosphopeptide amorphous calcium phosphate (CPP-ACP) on microtensile bond strength of three adhesive systems to deep dentin.
Materials and Methods: In this in vitro study, the occlusal surface of 30 sound human third molars was sectioned at 2 mm below and above the cementoenamel junction. The samples were randomly divided into three groups of OptiBond Solo Plus, G-Bond, and Clearfil SE Bond. Before composite resin bonding, each group was divided into two subgroups with and without dentin preparation with CPP-ACP. The teeth were then sectioned into 1 mm rods (n=15), and their microtensile bond strength was measured at a crosshead speed of 0.5 mm/min. Data were analyzed using two-way ANOVA and post-hoc Bonferroni test.
Results: There was no significant difference in bond strength of OptiBond Solo Plus (P=0.44) and Clearfil SE Bond (P=0.67) with/without CPP-ACP. A significant difference was found between the two subgroups of G-Bond in this respect (P<0.001). The differences in microtensile bond strength among all subgroups were significant (P<0.05).
Conclusion: The microtensile bond strength in use of G-Bond is significantly higher following dentin treatment with CPP-ACP compared with no use of CPP-ACP.

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Published
2020-12-15
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Mohammadi Torkani MA, Mesbahi S, Abdollahi AA. Effect of Casein Phosphopeptide Amorphous Calcium Phosphate Conditioning on Microtensile Bond Strength of Three Adhesive Systems to Deep Dentin. Front Dent. 17.
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