Table 1.
Restorative materials used in this study.
| Product | Type of material | Main constituents | Mixing | Setting reaction | Batch no. | Manufacturer |
|---|---|---|---|---|---|---|
| Ketac-S | Conventional reinforced glass ionomer cement | Silver (40% w/w) | Capsulated | Acid-base reaction and free-radical polymerization | 139517 | 3M ESPE, St. Paul, MN, USA |
| Fuji II LC | Resin-modified glass ionomer cement | Resin-modified polyacrylic acid, ion leachable glass | Hand-mixed (3:1 P/L) | Acid-base reaction | 202271 | GC Corp., Tokyo, Japan |
| Filtek Z250 | Resin composite | Bis-GMA, zirconia/silica fillers | One-paste | Light-activated polymerization | 20021127 | 3M ESPE, St. Paul, MN, USA |
| Valiant-Ph.D. | Amalgam | Silver, tin, copper, palladium, mercury | Capsulated | Amalgamation | 20913 | Dentsply Caulk, Milford, DE, USA |
Bis-GMA: 2,2-bis[4-(2-hydroxy-3-methacryloxypropoxy)phenyl]propane.