Table 1.

Pretreatment and bonding procedures for the 3 groups tested.

Group	Buccal Cavity (n)	Lingual Cavity (n)
(Number of cavities)
Group I	DC-1 + FII-1 (10)	XIII + FII (10)
(n = 20)
Group II	DC-2 + FII-2 (10)	iB exp + FII (10)
(n = 20)
Group III	DC-3 + FII-3 (10)	APLP + FII (10)
(n = 20)

DC: Dentin Conditioner (GC Tokyo, Japan).

FII: Fuji II LC (GC Tokyo, Japan).

XIII: Xeno III (Densply Detrey GmbH, Konstanz, Germany).

iB exp: iBond experimental (Heraeus Kulzer GmbH & Co. KG, Hanau, Germany).

APLP = Adper Prompt-L-Pop (3M ESPE AG, Dental products, Seefeld, Germany).