Table 1.

The Mean & standard deviation of volume of dentin removed canal transportation and centering ratio of 25° and 35° root canal curvature prepared by (2Shape & NeoNiTi)

Section	Parameter	25° 2Shape	25° NeoNiTi	p value1	35° 2Shape	35° NeoNiTi	p value2	p value3	p value4	p value5
Coronal	Volume	0.63 ± 0.37	0.68 ± 0.32	0.773	0.81 ± 0.47	0.95 ± 0.52	0.650	0.510	0.262	0.557
	Transportation	0.33 ± 0.22	0.27 ± 0.24	0.507	0.31 ± 0.19	0.32 ± 0.12	0.734	0.843	0.222	0.647
	Centering ratio	2.88 ± 1.93	2.82 ± 2.40	0.741	3.41 ± 1.66	3.65 ± 2.48	0.847	0.630	0.457	0.425
Middle	Volume	0.31 ± 0.17	0.30 ± 0.15	0.729	0.39 ± 0.28	0.54 ± 0.27	0.096	0.644	0.030*	0.398
	Transportation	0.14 ± 0.17	0.06 ± 0.10	0.106	0.09 ± 0.13	0.07 ± 0.10	0.578	0.206	0.604	0.087
	Centering ratio	3.04 ± 0.13	1.54 ± 2.02	0.078	2.42 ± 2.30	1.58 ± 1.66	0.683	0.171	0.940	0.127
Apical	Volume	0.08 ± 0.05	0.07 ± 0.03	0.525	0.09 ± 0.13	0.08 ± 0.09	0.545	0.323	0.323	0.656
	Transportation	0.07 ± 0.08	0.09 ± 0.15	0.624	0.04 ± 0.24	0.15 ± 0.19	0.364	0.792	0.644	0.725
	Centering ratio	0.80 ± 1.03	0.74 ± 0.54	0.419	1.31 ± 2.06	1.49 ± 1.82	0.762	0.553	0.843	0.411
Total	Volume	0.34 ± 0.18	0.35 ± 0.27	0.899	0.43 ± 0.27	0.52 ± 0.28	0.450	0.510	0.147	0.557
	Transportation	0.18 ± 0.08	0.14 ± 0.07	0.126	0.12 ± 0.14	0.08 ± 0.08	0.882	0.582	0.356	0.227
	Centering ratio	2.51 ± 0.96	1.87 ± 1.44	0.149	2.38 ± 1.08	2.02 ± 1.06	0.916	0.234	0.501	0.280

¹p value using Mann–Whitney U between 25° 2Shape and 25° NeoNiTi

²p value using Mann–Whitney U between 35° 2Shape and 35° NeoNiTi

³p value using Mann–Whitney U between 25° 2Shape and 35° 2Shape

⁴p value using Mann–Whitney U between 25° and 35° NeoNiTi

⁴p value using Mann–Whitney U between NeoNiTi and NeoNiTi

*p value < 0.05