Retreatment of Experimental Carrier-Based Obturators with the Remover NiTi Instrument: Evaluation of Apical Extrusion and Effects of New Kinematics

Table 2

Weight of apically extruded debris expressed in milligrams (mg) (mean ± standard deviation (SD)) and time expressed in seconds (s) spent for the removal of the root canal filling materials with different kinematics. Different superscript letters in the same column indicate significant differences among groups ().

Obturation technique	Time (s)	Retreatment kinematics	Time (s)	Weight of apically extruded debris (mg)
				Mean ± SD
Experimental obturators	182	Continuous rotation	219c	2.81 ± 1.50a
		Jeni mode	144a	2.60 ± 1.22a
Single cone	118	Continuous rotation	153a	4.58 ± 2.75a
		Jeni mode	82b	2.00 ± 1.43a