The Journal of Contemporary Dental Practice

Register      Login

SEARCH WITHIN CONTENT

FIND ARTICLE

Volume / Issue

Online First

Archive
Related articles

VOLUME 10 , ISSUE 4 ( July, 2009 ) > List of Articles

RESEARCH ARTICLE

Effect of Different Conditioning Protocols on the Adhesion of a Glass Ionomer Cement to Dentin

Sara Majidinia, Marjaneh Ghavamnasiri, Mahshid Bagheri, Hila Hajizadeh, Mohammad Sadegh Namazikhah

Citation Information : Majidinia S, Ghavamnasiri M, Bagheri M, Hajizadeh H, Namazikhah MS. Effect of Different Conditioning Protocols on the Adhesion of a Glass Ionomer Cement to Dentin. J Contemp Dent Pract 2009; 10 (4):9-16.

DOI: 10.5005/jcdp-10-4-9

License: CC BY-NC 3.0

Published Online: 00-07-2009

Copyright Statement:  Copyright © 2009; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim

The purpose of this study was to assess the effect of different surface treatments on the shear bond strength (SBS) of a resin modified glass ionomer cement (RMGIC) to dentin.

Methods and Materials

Forty human third molar teeth were randomly divided into four groups (n=10). The occlusal enamel was removed to obtain a flat surface of dentin. Each group was treated as follows: Group 1: 10% polyacrylic acid (positive control); Group 2: 37% phosphoric acid followed by 5% sodium hypochlorite (NaOCl); Group 3: 1.1% APF gel; and Group 4: no conditioning (negative control). Fuji II LC glass ionomer was bonded to dentin using a cylindrical mold. Samples were thermocycled and debonded using a shear force with a crosshead speed of 0.5 mm/min. Data were analyzed using one-way analysis of variance (ANOVA) and Tukey tests (α = 0.05).

Results

The mean SBS in Groups 1 through 4 were 11.562±3.148, 8.060±1.781, 8.830±1.554, and 3.074±0.784 (MPa), respectively. There were significant differences in the SBS between Group 1 with other groups (P<0.05). There were no statistically significant differences between Groups 2 and 3, but the SBS of both of them were significantly higher than that of Group 4 (P<0.05).

Conclusion

Although the dentin SBS of Fuji II LC after conditioning with APF and phosphoric acid followed by NaOCl was greater than the unconditioned group (Group 4), polyacrylic acid yielded the best result.

Clinical Significance

Proper conditioning of dentin is effective in promoting close adaptation of RMGIC to dentin.

Citation

Hajizadeh H, Ghavamnasiri M, Namazikhah MS, Majidinia S, Bagheri M. Effect of Different Conditioning Protocols on the Adhesion of a Glass Ionomer Cement to Dentin. J Contemp Dent Pract 2009 July; (10)4:009-016.


PDF Share
  1. Chemistry of glass-ionomer cements: a review. Biomaterials 1998 Mar;19(6):485-94.
  2. Bonding efficacy of polyalkenoic acids to hydroxyapatite, enamel and dentin. Biomaterials 2003 May;24(11):1861-7.
  3. Shear bond strengths of glass-ionomer cements to sound and to prepared carious dentine. J Mater Sci Mater Med 2007 May;18(5):845-9.
  4. Bonding to tooth structure: a comparison of glass-ionomer and composite-resin systems. J Esthet Dent 1994; 6(5):227-44.
  5. Effect of different conditioning protocols on adhesion of a GIC to dentin. J Adhes Dent 2001 3(2):153-67.
  6. Adhesion/decalcification mechanisms of acid interactions with human hard tissues. J Biomed Mater Res 2002 Jan;59(1):56-62.
  7. Effect of remaining dentin thickness and the use of conditioner on micro-tensile bond strength of a glass-ionomer adhesive. Dent Mater 2001 Sep;17(5):445-55.
  8. Morphological interface between hybrid ionomers and dentin with and without smearlayer removal. J Oral Rehabil 2000 Sep;27(9):808-14.
  9. Bonding to Enamel and Dentin. In: Summitt JB, Robbins JW, Hilton TJ, Schwartz RS, editors. Fundamentals of Operative Dentistry, A Contemporary Approach. 3rd ed. Quintessence Publishing Co; 2006. p. 227.
  10. Microtensile bond strengths of glass ionomer (polyalkenoate) cements to dentine using four conditioners. J Dent 2000 Jul;28(5):361-6.
  11. The effect of silver fluoride and potassium iodide on the bond strength of auto cure glass ionomer cement to dentine. Aust Dent J 2006 Mar;51(1):42-5.
  12. Self-etching adhesives improve the shear bond strength of a resin-modified glass-ionomer cement to dentin. J Adhes Dent 2004;6(1):55-9.
  13. Development of a self-etch adhesive for resin-modified glass ionomers. J Dent Res 2006 Apr;85(4):349-53.
  14. Effect of adhesive systems associated with resin-modified glass ionomer cements. J Oral Rehabil 2006 Feb;33(2):110-6.
  15. Interfacial fracture toughness between resin-modified glass ionomer and dentin using three different surface treatments. Dent Mater 2005 Jun;21(6):498-504.
  16. Influence of NaOCl treatment of etched and dried dentin surface on bond strength and resin infiltration. Oper Dent 2005 May;30(3):353-8.
  17. Effect of a sodium hypochlorite gel on dentin bonding. Dent Mater 2000 Sep;16(5):311-23.
  18. Effect of collagen removal on microleakage of resin composite restorations. Oper Dent 2002 Jan;27(1):38-43.
  19. Dentin bond strength and marginal adaption after NaOCl pre-treatment. Oper Dent 2000 Jan;25(1):40-5.
  20. Effect of collagen removal on shear bond strength of two single-bottle adhesive systems. Oper Dent 2000 Sep;25(5):395-400.
  21. Effect of various surface treatments on the microleakage and ultrastructure of resin-tooth interface. Oper Dent 2007 Jan;32(1):16-23.
  22. Effect of fluoride application on shear bond strength of brackets bonded with a resin-modified glass-ionomer. Am J Orthod Dentofacial Orthop 2005 May;127(5):580-3.
  23. Biomaterials. In: Roberson TM, Heymann HO, Swift Jr EJ, editors. Sturdevant's Art and Science of Operative Dentistry. 5th ed. Mosby; 2006. p. 185.
  24. Bond strength and interface micromorphology of an improved resin-modified glass ionomer cement. Am J Dent 1997 Jun;10(3):128-32.
  25. Resin-modified glass ionomer cements: bonding to enamel and dentin. Dent Mater 1996 May;12(3):161-6.
  26. Effect of dentin treatment with citric acid/ferric chloride solutions on glass ionomer bond strength. Am J Dent 1998 Feb;11(1):33-5.
  27. Effect of conditioner on bond strength of glass-ionomer adhesive to dentin/enamel with and without smear layer interposition. Oper Dent 2004 Nov;29(6):685-92.
  28. A photoacoustic FTIRS study of the chemical modifications of human dentin surfaces: II. Deproteination. Biomaterials 2001 Apr;22(8):793-7.
  29. Resin-dentin shear bond strength and interfacial ultrastructure with and without a hybrid layer. Oper Dent 1997 Jul;22(4):159-66.
  30. Adhesion between collagen depleted dentin and dentin adhesives. Am J Dent 1998 Jun;11(3):123-7.
  31. Effect of removal of surface collagen fibrils on resin-dentin bonding. Dent Mater 1999 Sep;15(5):323-31.
  32. Bond strengths to endodontically-treated teeth. Am J Dent 1999 Aug;12(4):177-80.
  33. Reversal of compromised bonding to oxidized etched dentin. J Dent Res 2001 Oct;80(10):1919-24.
  34. Effects of sodium hypochlorite and RC-prep on bond strengths of resin cement to endodontic surfaces. J Endod 2001 Dec;27(12):753-7.
  35. Effects of time and concentration of sodium ascorbate on reversal of NaOCl-induced reduction in bond strengths. J Endod 2007 Jul;33(7):879-81.
  36. Effect of antioxidant on coronal seal of dentin following sodium-hypochlorite and hydrogen-peroxide irrigation. Am J Dent 2006 Dec;19(6):348-52.
  37. Effects of sodium ascorbate on microtensile bond strength of total-etching adhesive system to NaOCl treated dentine. J Dent 2005 Sep;33(8):689-95.
  38. A nanoleakage perspective on bonding to oxidized dentin. J Dent Res 2002 Sep;81(9):628-32.
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.