EFFECT OF STORAGE ON MICRO TENSILE BOND STRENGTH OF VARIOUS TYPES OF FLOWABLE COMPOSITE
Date
2014
Journal Title
Journal ISSN
Volume Title
Type
Article
Publisher
e d a - e g y p t .
Series Info
EGYPTIAN DENTAL JOURNAL;Vol. 60, 983:989, January, 2014
Doi
Scientific Journal Rankings
Abstract
The aim of the study is to investigate the effect of storage on micro-tensile bond
strength of two self- adhesive flowable resin composites (Vertise Flow & Fusio Liquid Dentin)
compared to conventional flowable resin composite (Filtek flow Z350 XT).
Materials & Methods : Fourty-five extracted sound human molars were selected for this study.
They were divided into three groups of fifteen each according to the type of resin composite used.
The three main groups were further sub-divided into three subgroups of five each according to
the storage time either twenty-four hours, three months and six months storage in distilled water.
Each tooth was mounted on the cutting machine and sectioned into a series of 1 mm thick slabs
under water cooling, then, by rotating the tooth 90° and again sectioning it lengthwise, sticks of
1.0 mm2 cross-section area were obtained. The central sticks from each specimen were selected
and attached to the specially designed attachment jig, which was mounted on a universal testing
machine. Data were recorded using computer software. A tensile load was applied via testing
machine at a crosshead speed of 0.5 mm/min. The applied tensile force resulted in de bonding
along the substrate-adhesive interface. The load (Newton) required for de bonding of each stick was
divided by the area to express bond in MPa.
Results : Filtek Z350 XT showed the highest mean micro-tensile bond strength, Vertise flow
came next with the lowest mean microtensile bond strength values for the Fusio Liquid Dentin.
Conclusion : The conventional etch and rinse flowable resin composite (Filtek Z350 XT)
remains the gold standard of all other types of the flowable resin composites. The bond stability of
the self-adhesive flowable resin composites was questionable after aging for three months and was
adversely affected after six months.
Description
Google Scholar
Keywords
University of nstructor of operative Dentistry, Operative Dentistry
Citation
Unterbrink GL, Liebenberg WH. Flowable resin composites as filled adhesives: Literature review and clinical recommendations. Quintessence Int. 1999;30:249. 4. Park SB, Son WS, Ko CC, Garcia-Godoy F, Park MG, KimHI, Kwon YH. Influence of flowable resins on the shear bond strength of orthodontic brackets. Dent Mater, 2009;28(6):730–734. 5. Pashley DH, Tay FR. Aggressiveness of contemporary selfetching adhesives. Part II: etching effects on unground enamel. Dent Mater, 2001;17(5):430-44. 6. Ahmad I. Protocols for predictable aesthetic dental restorations. 2006, Blackwell Munksgaard, Oxford, UK. ISBN 1405173211, 9781405173216. 7. Paul SJ, Leach M, Rueggeberg FA, Pashley DH. Effect of water content on the physical properties of model dentine primer and bonding resins. J Dent, 1999;27:209–14. 8. Yiu CK, King NM, Pashley DH, Suh BI, Carvalho RM, Carrilho MR, et al. Effect of resin hydrophilicity and water storage on resin strength. J Biomat, 2004;25:5789–96. 9. De Munk J, Mine A, Poitevin A, Van Ende A, Cardoso MV, Van Lunduyt KL. Meta- analytical review of parameters involved in dentine bonding. J Dent Res, 2012;91:351-357. 10. Bayne SC, Thompson JY, Swift EJJ, Stamatiades P, Wilkerson M. A characterization of first-generation flowable composites. J Am Dent Ass, 1998;129:567–577 11. Hashimoto M, Tay FR, Svizero NR, de Gee AJ, Feilzer AJ, Sano H, et al. The effects of common errors on sealing ability oftotal-etch adhesives. Dent Mater, 2006;22:560–8. 12. Hashimoto M, Ohno H, Sano H, Kaga M, Oguchi H. In vitro degradation of resin–dentin bonds analyzed by microtensile bond test, scanning and transmission electron microscopy. J Biomat, 2003;24:3795–803. 13. Shono Y, Terashita M, Shimada J, Kozono Y, Carvalho RM, Russel CM, et al. Durability of resin–dentin bonds. J Adhes Dent, 1999;1:211–8. 14. Koshiro K, Inoue S, Tanaka T, Koase K, Fujita M, Hashimoto M, et al . In vivo degradation of resin–dentin bonds produced by a self-etch vs. a total-etch adhesive system. Eur J Oral Sci, 2004;112:368–75. 15. Ikeda T, De Munck J, Shirai K, Hikita K, Inoue S, Sano H. Effect of evaporation of primer components on ultimate tensile strengths of primer-adhesive mixture. Dent Mater, 2005;21:1051–8