Figure 1.
Tested composites
| Commercial name | Type | Monomers | Manufacturer | ||
| Size (µm) | |||||
| Filtek Z250 | Microhybrid | Bis-GMA, UDMA, Bis-EMA | Zirconia/Silica 0.6 jm | 60% | 3M ESPE Dental Products, St Paul, MN, USA |
| Filtek Z350 | Nanoparticulate | Bis-GMA, Bis- EMA, UDMA and TEGDMA | Zirconia/Silica 5-20 nm with clusters of 0.6-1.4 jm | 59.5% | 3M ESPE Dental Products, St Paul, MN, USA |
Bis-GMA: bisphenol A diglycidyl ether dimethacrylate; Bis-EMA: Ethoxylated bisphenol A dimethacrylate, TEGDMA:Triethylene glycol dimethacrylate; UDMA: urethane dimethacrylate