Table 1. The three materials used for the study along with their manufacturer details and composition.

DPI RR: the trade name of the cold cure acrylic resin material used; Bis-GMA: bisphenol A-glycidyl methacrylate; TEGDMA: triethylene glycol dimethacrylate

Manufacturer	Brand name	Resin matrix
Dentaurum, Ispringen, Germany	Orthocryl™ LC	Methyl methacrylate; methyl 2-methylprop-2-enoate; methyl 2-methylpropenoate
Ormco, Glendora, California, USA	Enlight™ light cure adhesive	Bis-GMA and TEGDMA
Dental Products of India, Bombay Burmah Trading Corporation Ltd., Mumbai, India	DPI™ RR cold cure acrylic material	Methyl methacrylate hydroquinone ethyl glycol tertiary amine