Table 5.

Comparison Among Groups for Shear Bond Strength (MPa)^a

	Meron, Mean (SD)	Riva, Mean (SD)	P*
Control	0.160 (0.046)Y	0.218 (0.066)Z	.033
RP10%	0.149 (0.072)	0.180 (0.081)	.383
RP25%	0.118 (0.040)	0.169 (0.083)	.104
RP50%	0.130 (0.063)	0.174 (0.071)	.160
P*	.373	.455

^aRP indicates red propolis.

^*Two-way analysis of variance with Tukey multiple comparison set. Different letters indicate statistical difference between the lines (P < .05).