Table 4. Comparison between the groups by root level, type of post, and type of cement.

	N	Mean	Std. Deviation	Mean Difference	95% CI of the Difference		P
					Lower	Upper
Coronal	48	7.75	7.01	-3.63	-7.21	-0.05	0.153
Middle	48	11.38	10.31
Parapost	48	11.18	9.98	3.24	-0.35	6.83	0.058
EverStick	48	7.94	7.57
Rely-X	48	13.26	8.73	7.39	4.07	10.71	0.000
G-CEM	48	5.87	7.62
P< 0.05 is statistically significant