Table 5. Comparing the effectiveness in time taken for two NiTi files and hand files for removing gutta-percha and resin-based sealer from palatal root canals (T2-T1).

The data was are summarized as the mean ± SD (standard deviation

 

Variables	N	Mean	Standard. deviation	95% confidence interval for mean	Minimum	Maximum	P -value
T1	Group I: Neo-Endo	20	3.284	1.229	0.275	2.708	3.859
	Group II: R-Endo	20	4.515	3.132	0.7	3.049	5.98
	Group III: K and H files	20	7.016	2.826	0.632	5.693	8.338
T2	Group I: Neo-Endo	20	8.171	2.691	0.602	6.911	9.43
	Group II: R-Endo	20	16.988	8.264	1.848	13.12	20.856
	Group III: K and H files	20	23.193	8.629	1.929	19.154	27.231
T1+T2	Group I: Neo-Endo	20	11.454	3.307	0.739	9.906	13.002
	Group II: R-Endo	20	21.503	8.519	1.905	17.515	25.49
	Group III: K and H files	20	30.208	8.63	1.93	26.169	34.247