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Adhesion of Epiphany Self-etch Sealer to Dentin Treated with Intracanal Irrigating Solutions

  • Mohannad Nassar
    Correspondence
    Address request for reprints to Mr Mohannad Issa Nassar, Graduate School, Tokyo Medical and Dental University, Cariology and Operative Dentistry, Department of Restorative Sciences, Komaba International House 4-5-29, Room 2-320, Komaba, Meguro-Ku, Tokyo 153-0041, Japan.
    Affiliations
    Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
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  • Lama Awawdeh
    Affiliations
    Restorative Dentistry Department, Jordan University of Science and Technology, Irbid, Jordan
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  • Ahmed Jamleh
    Affiliations
    Pulp Biology and Endodontics, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
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  • Alireza Sadr
    Affiliations
    Global Center of Excellence (GCOE), International Research Center for Molecular Science in Tooth and Bone Diseases, Tokyo Medical and Dental University, Tokyo, Japan
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  • Junji Tagami
    Affiliations
    Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan

    Global Center of Excellence (GCOE), International Research Center for Molecular Science in Tooth and Bone Diseases, Tokyo Medical and Dental University, Tokyo, Japan
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      Abstract

      Introduction

      This in vitro study assessed the adhesion of Epiphany self-etch (SE) root canal sealer to dentin treated with different irrigation regimens.

      Methods

      Flat dentin surfaces were obtained from human third molar teeth; smear layer was created on each sample. Five groups of 10 samples each were conditioned with one of the following regimens: (1) deionized water for 10 minutes; (2) 5% sodium hypochlorite (NaOCl) for 10 minutes; (3) 5% NaOCl for 10 minutes and then 10% sodium ascorbate (Na-Ascr) for 10 minutes; (4) 5% NaOCl for 10 minutes and then 2% chlorhexidine (CHX) for 5 minutes; or (5) 5% NaOCl for 10 minutes and then 10% Na-Ascr for 10 minutes, followed by 2% CHX for 5 minutes. The conditioned dentin surfaces were dried with absorbent paper points. The Epiphany SE sealer was placed on each dentin surface with the use of hollow stainless steel tubes with specific diameter and height. The samples were stored in 100% humidity at 37°C for 7 days and then tested for shear bond strength in a universal testing machine.

      Results

      Shear bond strength data were analyzed by one-way analysis of variance and Tukey post hoc tests (P < .05). There were statistically significant differences among the groups.

      Conclusions

      NaOCl decreased the bond strength of Epiphany SE sealer to dentin, whereas the use of Na-Ascr reversed this negative effect of NaOCl. CHX had neither negative nor positive influence on the bond strength.

      Key Words

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