Abstract
Objectives: The objective of this study was to evaluate the effect of thermal cycling on microtensile bond strengths (MTBS) of various adhesives to dentin. Methods: Three adhesive systems including a 1-step self-etch adhesive system (G-Bond), a 2-step self-etch adhesive system (AdheSE), and an etch&rinse adhesive system (Prime & Bond NT) were evaluated. Twenty-four extracted molars were used. After grinding the coronal enamel surface, the teeth were randomly divided into 6 groups (n=4) (G-Bond, G-Bond+thermal cycling, AdheSE, AdheSE+thermal cycling, Prime & Bond NT, and Prime & Bond NT+thermal cycling). Adhesives were applied according to each manufacturer’s instructions followed by resin composite polymerization. Groups without thermal cycling were stored in distilled water at 37 0C for 24 hours and used for immediate testing of the MTBS. Groups with thermal cycling were subjected to thermocycling (10.000 cycles between 5 0C and 55 0C, for a dwell time of 30 seconds). For MTBS test, teeth were sectioned occluso-gingivally into a serial slabs and further sectioned into composite-dentin sticks. Testing was performed on a universal testing machine at a crosshead speed of 1.0 mm/min. One-way ANOVA and post hoc Tukey-Kramer multiple comparisons tests (α=0.05) were performed on all data. Results: The results of the MTBS test showed that the highest bond strengths were observed in etch&rinse adhesive groups (3 and 3T). A statistically significant difference in MTBS was found between group 1 and group 1T (p<0.05). Moreover, there was no statistical difference in MTBS between group 1 and group 2 (p=1.000). Conclusions: Contrary to result with 1-step self-etch adhesive, thermal cycling was found ineffective on the MTBS of the 2-step self-etch and etch&rinse adhesive systems.
Keywords: Adhesive, thermal cycling, microtensile bond strength.
Keywords
References
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Abstract
References
- 1. Spreafico D, Semeraro S, Mezzanzanica D, Re D, Gagliani M, Tanaka T, Sano H, Sidhu SK. The effect of the air- blowing step on the technique sensitivity of four different adhesive systems. J Dent 2006;34:237–244.
- 2. Chiba Y, Rikuta A, Yasuda G, Yamamoto A, Takamizawa T, Kurokawa H, Ando S, Miyazaki M. Influence of moisture conditions on dentin bond strength of single-step selfetch adhesive systems. J Oral Sci 2006;48:131-137.
- 3. Sengun A, Unlu N, Ozer F, Urk B. Bond strength of five current adhesives to caries-affected dentine. J Oral Rehabil 2002;29:777–781.
- 4. Perdigao J, Gomes G, Duarte Jr S, Lopes MM. Enamel bond strengths of pairs of adhesives from the same manufacturer. Oper Dent 2005;30:492- 499.
- 5. Hiraishi N, Breschi L, Prati C, Ferrari M , Tagami J, King NM. Technique sensitivity associated with air-drying of HEMA-free, single-bottle, one-step self-etch adhesives. Dent Mater 2007;23:498-505.
- 6. Sadek FT, Goracci C, Cardoso PEC, Tay FR, Ferrari M. Microtensile bond strength of current dentin adhesives measured immediately and 24 hours after application. J Adhes Dent 2005;7:297-302.
- 7. Oliveira SSA, Pugach MK, Hilton JF, Watanabe LG, Marshall SJ, Marshall Jr GW. The influence of the dentin smear layer on adhesion: A self-etching primer vs a total-etch system. Dent Mater 2003;19:758-767.
- 8. Pashley DH, Tay FR. Aggressiveness of contemporary self-etch adhesives. Part II: Etching effects on unground enamel. Dent Mater 2001;17:430-444.
- 9. Kanemura N, Sano H, Tagami J. Tensile bond strength and SEM evaluation of ground and intact enamel surfaces. J Dent 1999;27:523-530.
- 10. Asaka Y, Amano S, Rikuta A, Kurokawa H, Miyazaki M, Platt JA, Moore BK. Influence of thermal cycling on dentin bond strengths of single-step self-etch adhesive systems. Oper Dent 2007;32:73-78.
- 11. Asaka Y, Yamaguchi K, Inage H, Takamizawa T, Kurokawa H, Rikuta A, Kuroda T, Miyazaki M. Effect of thermal cycling on bond strengths of single-step self-etch adhesives to bovine dentin. J Oral Sci 2006;48:63-69.
- 12. Price RB, Derand T, Andreou P, Murphy D. The effect of two configuration factors, time, and thermal cycling on resin to dentin bond strengths. Biomaterials 2003;24:1013– 1021.
- 13. Miyazaki M, Sato M, Onose H. Durability of enamel bond strength of simplified bonding systems. Oper Dent 2000;25:75-80.
- 14. Knobloch LA, Gailey D, Azer S, Johnston WM, Clelland N, Kerby RE. Bond strengths of one- and two-step self-etch adhesive systems. J Prosthet Dent 2007;97:216-222.
- 15. Chiba Y, Yamaguchi K, Miyazaki M, Tsubota K, Takamizawa T, Moore BK. Effect of air-drying time of singleapplication self-etch adhesives on dentin bond strength. Oper Dent 2006;31:233-239.
- 16. De Munck J, Van Landuyt K, Coutinho E, Poitevin A, Peumans M, Lambrechts P, Van Meerbeek B. Microtensile bond strength of adhesives bonded to class-I cavity-bottom dentin after thermo-cycling. Dent Mater 2005;21:999-1007.
- 17. Gohring TN, Gallo L, Luthy H. Effect of water storage, thermocycling, the incorporation and site of placement of glass-fibers on the flexural strength of veneering composite. Dent Mater 2005;21:761-772.
- 18. Hashimoto M, Ohno H, Sano H, Tay FR, Kaga M, Kudou Y, Oguchi H, Araki Y, Kubota M. Micromorphological changes in resindentin bonds after 1 year of water storage. J Biomed Mater Res 2002;63:306-311.
Details
| Primary Language | English |
|---|---|
| Journal Section | Original Research Articles |
| Authors | |
| Publication Date | January 22, 2011 |
| Submission Date | July 28, 2010 |
| Published in Issue | Year 2011Volume: 14 Issue: 1 |
Cumhuriyet Dental Journal (Cumhuriyet Dent J, CDJ) is the official publication of Cumhuriyet University Faculty of Dentistry. CDJ is an international journal dedicated to the latest advancement of dentistry. The aim of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of dentistry. First issue of the Journal of Cumhuriyet University Faculty of Dentistry was published in 1998. In 2010, journal's name was changed as Cumhuriyet Dental Journal. Journal’s publication language is English.
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