Table 1.

Resected margin comparison between the ultrasonic coagulation device and electrocautery

Groups		Anterior margin	Posterior margin	Lateral margin	Deep margin
Ultrasonic coagulation device	Mean value (mm)	11.91*	10.58	10.33*	11.33*
	Standard deviation	1.78	1.56	1.07	1.49
	Variance	3.17	2.44	1.15	2.24
Electrocautery	Mean value (mm)	10.17	10.25	9.33	9.08
	Standard deviation	0.718	1.422	0.65	0.79
	Variance	0.515	2.023	0.42	0.63
p value		0.0045*	0.59	0.011*	0.00013*

*Statistically significant