| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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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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