Table 2. Mean comparison between the left and right sides of the superior labial artery using the Wilcoxon signed-rank test.

SLA: superior labial artery.

Parameter	Group 1		Group 2		Z value	p-value
	Mean	Std. D.	Mean	Std. D.
SLA length	29.06	8.04	25.6	10.03	-1.1	0.271
SLA diameter	1.67	0.46	1.7	0.38	-0.75	0.455
SLA location to the landmark commissure of the lip	14.81	5.34	13.41	4.77	-0.96	0.336
SLA origin	19.82	9.29	22.24	10.31	-1.34	0.181