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

Table 4

Results of the evaluation of root-end preparation.

		AS3D	AS3D+MSE		Jetip-2	Jetip-2+MSE
Number of microcracks	A	0	7	0.005	0	8	0.001
	B	6	2		7	1
	C	4	1		3	1
	D	0	0		0	0
Type of microcracks	I	13	7	0.044	12	7	0.036
	II	19	4		20	6
	III	13	0		10	0
Cavity margin integrity	1	1	7	0.047	0	7	0.010
	2	4	2		5	1
	3	4	1		4	2
	4	1	0		1	0
Presence of gutta-percha	A	1 (10%)	7 (70%)	0.037	2 (20%)	8 (80%)	0.041
	B	4 (40%)	2 (20%)		4 (40%)	2 (20%)
	C	2 (20%)	1 (10%)		2 (20%)	0
	D	3 (30%)	0		2 (20%)	0
	E	0	0		0	0