Table 3.

Interations between adhesive, composite resin, curing time, and acid etching time according to the three-way analysis of variance

Parameter	Eta-squared value	Significance (p values)
Adhesive a	0.002	0.49
Composite curing time	0.368	0.001
Acid etching time	0.608	0.001
Adhesive * Curing time	0.052	0.001
Adhesive * Etching time	0.149	0.001
Curing time * Etching time	0.036	0.015
Adhesive * Curing time * Etching time	0.108	0.001
The higher the eta-squared value, the stronger the interaction of the parameters on the bond strenght a Statistically no significant effect (p > 0.05)