Table 1.

Specific information about the components of the adhesives investigated. Etching: Ormco® Gel Etch phosphoric acid 5 mL (Ormco Corporation, Glendora, California, USA).

Adhesive	Pack contents and batch identifier
Transbond XT	Light cure adhesive primer, batch number 8FB/712-034
	Light cure adhesive paste, batch number 8CU
iBond	1a iBond ceramic primer, batch code 010089
	1b iBond Universal, batch code 010020
Scotchbond Universal blister	1a MDP phosphate monomer, dimethacrylate
	1b HEMA, Vitrebond copolymer, filler, ethanol, water, initiators, and silane