Table 1.

Summary of used products and light curing units (LCUs).

Material Groups			Product Name Abbreviation	Manufacturer	LOT No.
PEEK			Tizian PEEK PEEK/0%	Schütz Dental Group, Rosbach, Germany	2014004126
			Dentokeep PEEK PEEK/20%	nt-trading, Karlsruhe, Germany	11DK14001
			bre.CAM. BioHPP dentine shade 2 PEEK/>30%	bredent, Senden, Germany	438251
Adhesive system			visio.link (VL)	bredent, Senden, Germany	135071
Luting cement			Panavia SA Cement	Kuraray Medical Inc., Tokyo, Japan	058AAA
Light curing unit (LCU)					Wavelength/Light Intensity
	LED	chairside	Elipar S10	3M, Seefeld, Germany	430–480 nm 1200 mW/cm2
		labside	EyeVolution MAX	Dreve, Unna, Germany	1 × 385−390 nm 6 × 465−470 nm
	Halogen	chairside	Translux CL	Heraeus Kulzer, Hanau, Germany	380–500 nm 450 mW/cm2
		labside	bre.Lux Power Unit	bredent, Senden, Germany	370–500 nm