Table 1 Description of the polymers, ceramics and adhesive agents used in the study
Brand | Type | Composition | Manufacturer |
|---|---|---|---|
Copra Peek | high performance polymer, polyetheretherketone (PEEK) | PEEK (%100) | White Peaks, Essen, Germany |
breCAM.BioHPP blank | bioactive high performance polymer, ceramic-reinforced PEEK (Bio-HPP) | Partially crystalline PEEK with 20 wt% ceramic fillers | Bredent, Senden, Germany |
Vitablocs Mark II | feldspathic ceramic | Silicon dioxide 56–64%, aluminium oxide 20–23%, sodium oxide 9–11%, potassium oxide 6–8%, calcium oxide 0.3–0.6%, titanium oxide 0.0–0.1% | Vita Zahnfabrik, Bad Saöckingen, Germany |
Cerasmart | hybrid nanoceramic | Resin composite material (BisMEPP, UDMA, DMA) with 71 wt% silica and barium glass nanoparticles | GC Europe, Leuven, Belgium |
Vita Enamic | polymer-infiltrated ceramic network | Ceramic: Silicon dioxide 58–63%, aluminium oxide 20–23%, sodium oxide 9–11%, potassium oxide 4–6%, boron trioxide 0.5–2%, zirconia and calcium oxide. Polymer (25%): UDMA, TEGDMA | Vita Zahnfabrik, Bad Saöckingen, Germany |
Vita Adiva Cera-Etch | hydrofluoric acid gel | 5% hydrofluoric acid | Vita Zahnfabrik, Bad Saöckingen, Germany |
Vita Adiva C-Prime | ceramic primer | Solution of methacrylsilanes in ethanol | Vita Zahnfabrik, Bad Saöckingen, Germany |
Variolink Esthetic DC | dual curing resin-based dental luting material | Monomer matrix: UDMA and methacrylate monomers Inorganic fillers: ytterbium trifluoride and spheroid mixed oxide. Initiators, stabilizers and pigments are additional ingredients The particle size is 0.04–0.2 μm. The total volume of inorganic fillers is approx. 38% | Ivoclar Vivadent, Schaan, Liechtenstein |
Visio.link | bonding agent, primer | MMA, DMA, PETIA, 2-propenoic acid, activators, stabilizers | Bredent, Senden, Germany |