Effect of Heat Softening versus Ultrasonic Removal of Root-End Gutta-Percha on the Quality of Root-End Preparation for Endodontic Microsurgery

Table 2

Results of the time requirements and features of apical cavity preparation performed with AS3D and Jetip-2 ultrasonic tips.

		AS3D	Jetip-2
Time				0.174
Number of microcracks	A	0	0	0.639
	B	6	7
	C	4	3
	D	0	0
Type of microcracks	I	13	12	0.787
	II	19	20
	III	13	10
Cavity margin integrity	1	1	0	0.774
	2	4	5
	3	4	4
	4	1	1
Presence of gutta-percha	A	1 (10%)	2 (20%)	0.912
	B	4 (40%)	4 (40%)
	C	2 (20%)	2 (20%)
	D	3 (30%)	2 (20%)
	E	0	0