Table 5.

Mass percent of elements on the interior surface of the canal

Chemical element	Patients after chemotherapy	Controls	p
	(group 1)	(group 2)
Ca	26.870 ±9.839	33.420 ±2.789	0.4034
P	17.472 ±6.247	19.528 ±0.698	0.8345
Na	1.326 ±1.192	1.594 ±0.873	0.4034
Cl	0.214 ±0.265	-	0.1797
Mg	1.444 ±0.897	5.320 ±7.106	0.2492
O	46.106 ±8.916	42.236 ±0.755	0.8345