Table1.

The manufacturer and chemical composition of used ceramic material and resin cements.

Material	Manufacturer	Composition	Type
IPS Empress I	Ivoclar Vivadent, Liechtenstein	Leucite-reinforced glass ceramic (K2O-Al2O3-SiO2)	Heat-pressed
Panavia SA Cement Plus	Kuraray Medical, Japan	Bisphenol A diglycidylmethacrylate, triethylene glycol dimethacrylate, 2-hydroxyethyl methacrylate, sodium fluoride, Silanated barium glass filler, Silanated colloidal silica, 10-Methacryloyloxydecyl dihydrogen phosphate, Hydrophobic aromatic dimethacrylate, Hydrophobic aliphatic dimethacrylate dl-Camphorquinone	Dual-Cure Self-etch, Self-adhesive
Choice 2	Bisco, USA	Glass Filler, Amorphous Silica, Bisphenol A Diglycidylmethacrylate, Urethane Dimethacrylate, Triethylene Glycol Dimethacrylate, Tetrahydrofurfuryl Methacrylate	Light-cure Total etch