Method: MES/Kuraray Noritake Dental, Filtek Supreme Ultra Flowable (SUF)/3M ESPE, Tetric EvoFlow (TEF)/Ivoclar, Grandio So Heavy Flow (GHF)/VOCO, and Surefil SDR Flow (SDR)/Dentsply were examined in this study. Each composite disk was prepared by light-curing the composite according to the manufacturer's instructions. “No polish” data was taken by wiping the disk with ethanol. The cured disk was polished with 600 grit SiC, and POGO/Dentsply by 5000 rpm as “Polished 10 or 20 sec.” data. Then, the toothbrush wear test (40,000 cycles) was carried out as “Polish retention” data. Surface gloss value % was measured by Gloss Meter/Nippon Denshoku at 60 degrees. Flexural strength was measured by ISO4049:2009 method with a universal testing instrument (Shimadzu).
Result: MES showed the most significant gloss value % after polish and tooth brush wear test.
Sample |
MES |
SUF |
TEF |
GHF |
SDR |
Gloss value % of No polish |
26.3 (0.8) |
0.2 (0.0) |
2.7 (0.3) |
0.3 (0.0) |
0.2 (0.0) |
Gloss value % of Polished 10 sec. |
37.7 (1.8) |
14.4 (0.6) |
13.9 (0.5) |
5.7 (0.6) |
2.6 (0.4) |
Gloss value % of Polished 20 sec. |
57.5 (3.8) |
22.7 (2.4) |
17.9 (0.8) |
10.9 (0.5) |
2.4 (0.8) |
Gloss value % of Polish retention |
63.7 (2.8) |
13.3 (2.5) |
23.7 (2.0) |
4.2 (0.2) |
6.7 (0.5) |
Flexural Strength MPa |
151 (4) |
141 (12) |
90 (8) |
135 (12) |
130 (2) |
Conclusion: The result suggested MES should exhibit superior polishability, polish retention, and mechanical property.