Table 1. Materials used in this study.
| Material type/ Commercial name | Type | Matrix type | Photoinitiator system | Filler type | Filler loading (vol%) | Shade | Manufacturer | Batch # |
|---|---|---|---|---|---|---|---|---|
| Mycro-hybrid SureFil® SDR™ Flow (SDR) | F, L | Polymerization modulator, dimethacrylate resins, UDMA | CQ | Ba-B-F-Al silicate glass, SiO2, Sr–Al silicate glass, TiO2 | 44 | U | Dentsply | 91130 |
| Mycro-hybrid Tetric N Flow (TNF) | F | Bis-GMA, Bis-EMA, UDMA, TEGDMA | CQ | Barium glass, ytterbium trifluoride, Ba-Al-fluorosilicate glass, SiO2 | 39 | A2 | Ivoclar /Vivadent | L40758 |
| Nanofilled Filtek Z350 Flow (FZ350F) | F | Bis-GMA, Bis-EMA, TEGDMA | CQ | Agregated zirconia/silica cluster | 55 | A2 | 3M Espe | 1027100529 |
| Mycro-hybrid Esthet-X HD (EXHD) | C | Bis-GMA, Bis-EMA, TEGDMA | CQ | Barium fluoroborosilicate glass and silica | 60 | A2 | Dentsply | L58656 |
| Mycro-hybrid Tetric N Ceram (TNC) | C | Bis-GMA, Bis-EMA, UDMA | CQ | Barium glass, ytterbium trifluoride, Ba-Al-fluorosilicate glass, SiO2 | 55–57 | A2 | Ivoclar /Vivadent | 026700190 |
| Nanofilled Filtek Z350 XT (FZ350) | C | Bis-GMA, Bis-EMA, UDMA, TEGDMA | CQ | Agregated zirconia/silica cluster | 63.3 | A2 E | 3M Espe | 1026600561 |
| Mycro-hybrid Filtek P90 (FP90) | C, L | 3,4-Epoxycyclohexyl ethylcyclopolymethylsiloxane, | CQ, iodonium salt and electron donor | Silanized quartz; yttriumfluoride | 55 | A2 | 3M Espe | 3480370 |
Notes.
- F
- flowable
- C
- conventional
- L
- low-contraction
- Bis-GMA
- bisphenol-glycidyl-methacrylate
- Bis-EMA
- bisphenol-a-ethoxydimethacrylate
- UDMA
- urethane-dimethacrylate
- TEGDMA
- triethyleneglycoldimethacrylate
- HEMA
- hydroxyethylmethacrylate
- CQ
- camphorquinone