Table 1: Adhesive systems used in the study.

Material Description Batch Composition Manufacturer
Scotchbond universal Adhesive system 475261 Organophosphate monomer (MDP),
dimethacrylate resins (BisGMA, etc), HEMA, vitrebond copolymer, filler, ethanol, water, initiators, silane
3M/ESPE, St. Paul, MN, USA
Scotchbond
multi-purpose
Adhesive system Primer:
N271103   Adhesive:
N296740
Primer: Aqueous solution of HEMA, polyalkenoic acid. Adhesive: Bis-GMA, HEMA, photoinitiator system   3M/ESPE, St. Paul, MN, USA
Clearfil SE bond Adhesive system Primer: 01109A     Adhesive:
01662A
Self-etch primer: 10-MDP, HEMA, hydrophilic dimethacrylate, photo-initiator, water. Adhesive: 10-MDP, bis-GMA, HEMA, hydrophilic dimethacrylate, microfiller Kuraray, Kurashiki, Okayama, Japan