TABLE 2.

Inter- and Intra- group comparisons of mean HP-VAS score before and during treatments (access cavity preparation or initial file insertion)

	Li+KT	Li+Saline	P
Mean HP-VAS scores before treatment mm±SD	105.2±38.7	109.6±35.6	0.58
Mean HP-VAS scores during treatment mm±SD	57.5±28.5	70.2±44.9	0.14
P value	<0.01	<0.01

There was no significant inter- or intra- group differences (P>0.05) (t-test)