2013 Fiscal Year Final Research Report
Wear of Flowable Resin Composite for Posterior Tooth Restoration
| Project/Area Number |
24792041
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Conservative dentistry
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| Research Institution | The Nippon Dental University |
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Principal Investigator |
TAIRA Yoshihisa 日本歯科大学, 新潟生命歯学部, 助教 (10610272)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | フロアブルレジン / 摩耗試験 |
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| Research Abstract |
The aim of this study was to examine two-body wear testing of flowable resin composites for posterior tooth restoration, using a mechanical loading device in vitro.
The cavities were treated with each adhesive system according to the manufacturer instructions, and filled with each flowable resin composite (Clearfil Majesty LV:MLV, Estelite Flow Quick:EFQ, Beautifil Flow Plus F00:BF00, and MI Fill:MIF). Clearfil Majesty was used as the control. The specimens were subjected to an in vitro two-body wear test using a mechanical loading device at ceramic stylus (Aluminum nitride).
The mean wear volume of respective materials after 40,000 cyclic loadings were as follows; MLV:0.268 mm3, EFQ: 0.140 mm3, BF00:0.008 mm3, MIF: 0.026 mm3 and the control: 0.013 mm3. Although their filler amounts were less than that of the control, BF00 and MIF showed high wear resistances equal to that of the control at every loading time.
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