Table 1. Provisional materials used in this study.

Material	Type	Fabrication technique	Manufacturer
Unifast Trad	Methylmethacrylate	Conventional Direct	GC chemicals, Tokyo, Japan
Protemp 4	Bis-acryl	Conventional Direct	3M ESPE, Seefeld, Germany
Brylic Solid	Highly polymerized PMMA	CAD/CAM milling	Sagemax bioceramics, WA, USA
Freeprint Temp	Photo-polymerized bis-acrylate resin	CAD/CAM printing	Detax GmbH, Ettlingen, Germany

CAD/CAM, computer-aided design/computer-aided manufacturing; PMMA, polymethylmethacrylate