Removal of superficial dentin surface to restore decreased bond strength caused by sodium hypochlorite

  • Song, Mi-Yeon (Department of Conservative Dentistry, School of Dentistry, Chosun University) ;
  • Hwang, Ho-Keel (Department of Conservative Dentistry, School of Dentistry, Chosun University) ;
  • Jo, Hyoung-Hoon (Department of Conservative Dentistry, School of Dentistry, Chosun University)
  • Received : 2015.09.04
  • Accepted : 2015.10.15
  • Published : 2015.12.01

Abstract

Objective: Sodium hypochlorite (NaOCl) decreases the bond strength of resin composite. The purpose of this study was to compare the effect of antioxidant and superficial dentin surface removal on the microtensile bond strength of NaOCl-treated dentin. Materials and Methods: Twenty non-carious human third molars were used in this study. The dentin surfaces were treated with 5.25% NaOCl for 10 min, followed either by treatment with 10% ascorbic acid or superficial dentin surface removal. Two-step self-etch adhesive and resin composite were used for restoration. The bonded specimens were subjected to the microtensile bond strength test. Statistical analysis was performed using one-way analysis of variance (ANOVA) and Tukey's test (p < 0.05). Results: The bond strength after removal of the superficial dentin surface following NaOCl irrigation was similar to that in the control group. The group treated with 10% ascorbic acid demonstrated significantly higher bond strength than the other groups. Conclusion: NaOCl irrigation-induced reduction in dentin bond strength could be recovered by either treatment with 10% ascorbic acid or simple removal of the superficial dentin surface.

Keywords

References

  1. Belli S, Zhang Y, Pereira PN, Pashley DH. Adhesive sealing of the pulp chamber. J Endod 2001; 27: 521-526. https://doi.org/10.1097/00004770-200108000-00006
  2. Belli S, Zhang Y, Pereira PN, Ozer F, Pashley DH. Regional bond strengths of adhesive resins to pulp chamber dentin. J Endod 2001; 27: 527-532. https://doi.org/10.1097/00004770-200108000-00007
  3. Galvan Jr RR, West LA, Liewehr FR, Pashley DH. Coronal microleakage of five materials used to create an intracoronal seal in endodontically treated teeth. J Endod 2002; 28: 59-61. https://doi.org/10.1097/00004770-200202000-00002
  4. Ray H, Trope M. Periapical status of endodontically treated teeth in relation to the technical quality of the root filling and the coronal restoration. Int Endo J 1995; 28: 12-18. https://doi.org/10.1111/j.1365-2591.1995.tb00150.x
  5. Zehnder M. Root canal irrigants. J Endod 2006; 32: 389-398. https://doi.org/10.1016/j.joen.2005.09.014
  6. Morris MD, Lee K-W, Agee KA, Bouillaguet S, Pashley DH. Effects of sodium hypochlorite and RC-prep on bond strengths of resin cement to endodontic surfaces. J Endod 2001; 27: 753-757. https://doi.org/10.1097/00004770-200112000-00010
  7. Erdemir A, Ari H, GüngünesH, Belli S. Effect of medications for root canal treatment on bonding to root canal dentin. J Endod 2004; 30: 113-116. https://doi.org/10.1097/00004770-200402000-00013
  8. Nikaido T, Takano Y, Sasafuchi Y, Burrow M, Tagami J. Bond strengths to endodontically-treated teeth. Am J Dent 1999; 12(4): 177-80.
  9. Lai S, Mak Y, Cheung G, Osorio R, Toledano M, Carvalho Rl. Reversal of compromised bonding to oxidized etched dentin. J Dent Res 2001; 80: 1919-1924. https://doi.org/10.1177/00220345010800101101
  10. Weston CH, Ito S, Wadgaonkar B, Pashley DH. Effects of time and concentration of sodium ascorbate on reversal of NaOCl-induced reduction in bond strengths. J Endod 2007; 33 :879-881. https://doi.org/10.1016/j.joen.2007.04.004
  11. Spangberg L, Engstrom B, Langeland K. Biologic effects of dental materials: 3. Toxicity and antimicrobial effect of endodontic antiseptics in vitro. Oral Surg Oral Med Oral Pathol 1973; 36: 856-871. https://doi.org/10.1016/0030-4220(73)90338-1
  12. Estrela C, Estrela CR, Barbin EL, Spano JC, Marchesan MA, Pecora JD. Mechanisms of action of sodium hypochlorite. Braz Dent J 2002; 13: 113-117 https://doi.org/10.1590/S0103-64402002000200007
  13. Ari H, Yasar E, Bellí S. Effects of NaOCl on bond strengths of resin cements to root canal dentin. J Endod 2003; 29: 248-251. https://doi.org/10.1097/00004770-200304000-00004
  14. Yiu C, Garcia-Godoy F, Tay F, Pashley D, Imazato S, King N, et al. A nanoleakage perspective on bonding to oxidized dentin. J Dent Res 2002; 81: 628-632. https://doi.org/10.1177/154405910208100910
  15. Ozturk B, Ozer F. Effect of NaOCl on bond strengths of bonding agents to pulp chamber lateral walls. J Endod 2004; 30: 362-365. https://doi.org/10.1097/00004770-200405000-00013
  16. Ishizuka T, Kataoka H, Yoshioka T et al. Effect of NaClO treatment on bonding to root canal dentin using a new evaluation method. Dent Mater J 2001; 20: 24-33. https://doi.org/10.4012/dmj.20.24
  17. Nakabayashi N. Dentinal bonding mechanisms. Quintessence Int 1991; 22: 73.
  18. Rueggeberg F, Margeson D. The effect of oxygen inhibition on an unfilled/filled composite system. J Dent Res 1990; 69: 1652-1658. https://doi.org/10.1177/00220345900690100501
  19. Ari H, Erdemir A. Effects of endodontic irrigation solutions on mineral content of root canal dentin using ICP-AES technique. J Endod 2005; 31: 187-189. https://doi.org/10.1097/01.don.0000137643.54109.81
  20. Sim TP, Knowles JC, Ng YL, Shelton J, Gulabivala K. Effect of sodium hypochlorite on mechanical properties of dentine and tooth surface strain. Int Endo J 2001; 34: 120-132. https://doi.org/10.1046/j.1365-2591.2001.00357.x
  21. Vongphan N, Senawongse P, Somsiri W, Harnirattisai C. Effects of sodium ascorbate on microtensile bond strength of total-etching adhesive system to NaOCl treated dentine. J Dent 2005; 33 :689-695. https://doi.org/10.1016/j.jdent.2005.01.008
  22. Marending M, Luder H, Brunner T, Knecht S, Stark W, Zehnder M. Effect of sodium hypochlorite on human root dentine?mechanical, chemical and structural evaluation. Int Endo J 2007; 40: 786-793. https://doi.org/10.1111/j.1365-2591.2007.01287.x
  23. Trope M, Maltz DO, Tronstad L. Resistance to fracture of restored endodontically treated teeth. Endod Dent Traumatol 1985; 1: 108-111. https://doi.org/10.1111/j.1600-9657.1985.tb00571.x
  24. Frankenberger R, Perdigao J, Rosa B, Lopes M. 'No-bottle'vs 'multi-bottle'dentiv adhesives - a microtensile bond strength and morphological study. Dent Mater 2001;17:373-380. https://doi.org/10.1016/S0109-5641(00)00084-1
  25. Pashley DH, Sano H, Ciucchi B, Yoshiyama M, Carvalho RM. Adhesion testing of dentin bonding agents: a review. Dent Mater 1995;11:117-125. https://doi.org/10.1016/0109-5641(95)80046-8