Comparison of tensile bond strength of ball attachments made of different materials to root canal dentin after chewing simulation

Table 1 Comparison of the mean and standard deviation values of the Tensile bond strength between the three groups pre and post aging

	TI		PE		PK		F value	P value
	X (MPa)	SD	X (MPa)	SD	X (MPa)	SD	F value	P value
T0 (pre aging)	6.5	0.29^a	18.96	0.37^b	19.24	0.24^b	5653.91	< .00001
T1 (post aging)	5.08	0.22^x	9.57	0.32^y	9.64	0.35^y	720.21	< .00001

Different superscript lowercase letters (a, b) indicate significant difference between the three groups at T0. Different superscript lowercase letters (x, y) indicate significant difference between the three groups at T1
X, mean; SD, standard deviation; T0, pre aging measurement; T1, post aging measurement; MPa. Mega Pascal unit

ISSN: 1472-6831