A Comparative Evaluation of the Apically Extruded Debris from Root Canals Prepared by R-Motion NiTi File System

Table 1

The mean, standard deviation (SD), standard error (SE), median, minimum (Min), and maximum (Max) amounts of apically extruded debris by all tested groups in (mg).

Groups	Mean (mg)	SD	SE	Median	Min	Max	P-values
RM (I)	0.00015	0.00008	0.00002	0.00016	0.00004	0.00032
WOG (II)	0.00025	0.00012	0.00003	0.00023	0.00010	0.00054	0.032
PTN (III)	0.00032	0.00018	0.00004	0.00029	0.00010	0.00076
HFEDM (IV)	0.00023	0.00017	0.00004	0.00018	0.00008	0.00066

Note. The significant level set at , the Kruskal–Willis test suggested that there was a significant difference between the tested groups, as the P-value was less than 0.05.