Table 1. Materials used in this study.
| Material | Type of RMC | Composition | Manufacturer |
|---|---|---|---|
| Vita Enamic | Polymer-infiltrated hybrid ceramic (PIHC) (Glass-ceramic in a resin interpenetrating matrix) | 86 wt% feldspathic ceramic enriched with Al2O3, 14 wt% polymer (UDMA, TEGDMA) | Vita Zahnfabrik, Bad Säckingen, Germany |
| GC CeraSmart | Flexible hybrid ceramic (FHC) | Nanoparticle-filled resin (UDMA, DMA) containing 71 wt% silica and barium glass filler | GC Corp., Tokyo, Japan |
| Lava Ultimate | Resin nano-ceramic (RNC) | 80 wt% nanoceramic, 20 wt% resin (Bis-GMA, UDMA, Bis-EMA, TEGDMA) | |
| Rely X Ceramic Primer | Ceramic primer | Stabilized ethyl alcohol, MPS | |
| Single Bond | Universal Adhesive resin | MDP Phosphate Monomer, DMA, HEMA, Vitrebond copolymer, filler, ethanol, water, silane | 3M ESPE, St. Paul, MN, USA |
| CoJet System | Silica-coated agent | 50-μm silica-coated Al2O3 airborne particles | |
| Solidex | Indirect composite resin | Micro-hybrid composite containing of over 53 % ceramic filler | SHOFU Inc., Kyoto, Japan |
Al2O3 = Aluminium trioxide; UDMA = Urethane dimethacrylate; TEGDMA = Triethylene glycol dimethacrylate; DMA = Dimethacrylate; Bis-EMA = Bisphenol-A-ethoxylate glycidyl methacrylate; Bis-GMA = Bisphenol-A-glycidylmethacrylate; MPS = Methacryloxypropyltrimethoxy silane 2; HEMA = Hydroxyethylmethacrylate; MDP = methacryloyloxi-decyl-dihydrogen-phosphate; FHC, flexible hybrid ceramic; PIHC, polymer-infiltrated hybrid ceramic; RMC, resin matrix ceramics; RNC, resin nanoceramic