| | Materials | Composition |
| | Omnichroma (Tokuyama, Tokyo, Japan) | Inorganic filler particles: 79% by weight (68% by volume) of spherical zirconium silica filler (average particle size 0.3 µm, range 0.2–0.4 µm). Organic matrix: UDMA, TEGDMA, mequinol, dibutilhidroxitolueno e UV absorber | | Vittra APS Unique (FGM, Joinville, Brazil) | Organic matrix: UDMA, TEGDMA. Inorganic filler particles: active ingredients: methacrylate monomer blend, photoinitiator composition (APS), co-initiators, stabilizers, and silane. Inactive ingredients: boron-aluminum-silicate glass | | Filtek Z250 XT (3M ESPE, St. Paul, MN) | Organic matrix: Bis-GMA, UDMA, Bis-EMA, PEGDMA e TEGDMA, fluorescent agents, pigments, stabilizers, and initiators. Inorganic filler particles: zirconia/silica: 3 µm or less, zirconia/silica cluster, surface-treated silica: 20 nm, 67.8% by volume |
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Bis-EMA, bisphenol A ethoxylated dimethacrylate; Bis-GMA, bisphenol A-glycidyl methacrylate; TEGDMA, triethylene glycol dimethacrylate; UDMA, urethane dimethacrylate.
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