Table 1.

List of Resin-Luting Cements Tested and their Application Protocol

Luting cements	Manufacturer	Composition	Application protocol
Variolink II Low Viscosity (incl. ExciTE DSC)	Ivoclar-Vivadent, Schaan, Liechtenstein	Monomer matrix is composed of Bis-GMA, urethane dimethacrylate, and triethylene glycol dimethacrylate. Inorganic fillers are barium glass, ytterbium trifluoride, Ba-Al-fluorosilicate glass and spheroid mixed oxide. Additional contents: catalysts, stabilizers, and pigments.	Etch dentin for 15 sec and rinse with H3PO4 (Total etch, Ivoclar-Vivadent); apply ExciTE DSC with a brush on the dentin surface, and agitate for at least 10 sec; dry for 1–3 sec; the surface should have a uniform glossy appearance; light cure for 20 sec; mix equal amounts of base and catalyst paste for 10 sec; apply with a brush on dentin and, if necessary, on the restoration; light cure for 20 sec (four times sideways, one time from above, 80 sec in total).
Clearfil Esthetic Cement (C)	Kuraray Medical Inc., Tokyo, Japan	ED Primer II Liquid A: HEMA, 10-MDP, 5-NMSA, water, accelerator ED Primer II Liquid B: 5-NMSA, accelerator, water, initiator Clearfil Esthetic Cement Paste A: Bis-GMA, TEGDMA, hydrophobic aromatic dimethacrylate monomers, silanated barium glass filler, colloidal silica, accelerator Clearfil Esthetic Cement Paste B: Bis-GMA, TEGDMA, hydrophobic aromatic dimethacrylate monomers, hydrophilic aliphatic dimethacrylate monomers, silanated barium glass filler, silanated silica, colloidal silica, benzoyl peroxide, dicamphorquinone, pigments	Dispense equal amounts of ED Primer II Liquid A and B and mix; apply ED primer II and leave for 30 sec; remove any excess of primer using a cotton pellet and dry the primer completely with gentle air flow; apply on dentin; remove excess cement; light cure each surface for 20 sec (four times sideways, one time from above, 80 sec in total)

HEMA, hydroxyethylmethacrylate; 10-MDP, 10-methacryloyloxi-decyl-dihydrogen-phosphate; 5-NSMA, N-methacryloyl-5-aminosalicylic acid; TEGDMA, triethyleneglycol-dimethacrylate.