Table 1. Intra-group comparison between manual and ultrasonic methods.

* Significant, ** Highly significant; NS: normal saline; p<0.05 is taken for significance; SM, Sapindus mukorossi; Test used: Independent t-test

		Mean	Std. Deviation	Test value	P-value
Normal Saline	Manual	0.167	0.038	-0.761	0.455
	Ultrasonic	0.333	0.065
Hypo	Manual	0.45	0.066	-8.403	0.0005**
	Ultrasonic	0.70	0.073
SM	Manual	0.016	0.038	-6.439	0.0005**
	Ultrasonic	0.133	0.049