Objective: To compare the curing stress, compressive strength (CS), diametral tensile strength (DTS), and wear properties of a 3M experimental Bulk-fill low-stress flowable with some other commercially available Bulk-fill flowable materials.
Methods: Materials used were an experimental Bulk-fill flowable material from 3M ESPE, Filtek™ Supreme Ultra Flowable (3M ESPE), Grandio® SO Heavy Flow (Voco), SureFil
The properties measured are summarized in the following table, with p values vs. the experimental flowable included.
Materials | Compressive Strength (MPa) | Diametral tensile Strength (MPa) | Wear (µm) | |||
Experimental 3M flowable | 349.9(8.8) |
| 70.3(10.3) |
| 14.7(0.55) |
|
SureFil SDR flow | 222.9(5.3) | P = 0.00 | 48.7(5.7) | p = 0.01 | 24.6(0.66) | p = 0.00 |
Venus Bulk Fill | 317.7(16.1) | p = 0.00 | 59.3(7.5) | p = 0.09 | 21.7(1.00) | p = 0.00 |
Conclusion: The new 3M experimental bulk-fill flowable material had similar stress level during cure when compared with current low stress flowables on the market. It showed statistically higher compressive strength and better wear properties compared with SureFil SDR flow and Venus Bulk Fill. Its diametral tensile strength was also statistically higher than SDR flow.
Keywords: Composites, Dental materials, Polymerization and Wear
See more of: Dental Materials 7: Polymer-based Materials-Physical Properties and Performance