material Etch-and-rinse (Adper™ Scotchbond) Self-Etch (Adper™ Easy Bond 3M) Fisher P value
Superficial dentin 0.43 ( 0.27) 0.8 (0.35) b < 0.0001
Deepdentin 0.17 (0.12) 0.42 (0.31) b 0.006
ANOVA b b    
P value 0.003 < 0.0001    
a Means are not significantly different (Fisher’s test)
b if the p-value <0.05, the MPa for debonding is significantly different
Table 1: Fisher’s test results for Bond strength values of the different adhesive types.