Table 1: Summary of characteristics of the studies about shaping ability.

Author Type of Sample Number of Canals File Used Kinematics Methods Results (Transportation)
Marceliano-Alves et al. Mn molar
10º - 20º curvature
64 Reciproc
WaveOne
Twisted File
HyFlex CM
R
R
CR
CR
µCT Reciproc and WaveOne > Twisted File and HyFlex CM
Saber et al. Mn molar
20º - 45º curvature
60 Oneshape
Reciproc
WaveOne
CR
R
R
Radiographic Oneshape > Reciproc and WaveOne
Simpsy et al. Mn molar
25º - 35º curvature
45 HyFlex CM
WaveOne
ProTaper
CR
R
CR
CBCT ProTaper > WaveOne > HyFlex
Dhingra et al. Mn molar
(curvature not mentioned)
120 Oneshape
Reciproc
WaveOne
CR
R
R
CBCT Oneshape > WaveOne and Reciproc
Bürklein et al. Human teeth (type not mentioned)
25º - 35º curvature
80 Mtwo
Reciproc
F360
OneShape
CR
R
CR
CR
Radiographic No significant difference
Hwang et al. Mx molar
20º - 45º curvature
45 Mtwo
Reciproc
CR and R
R
µCT Mtwo RC > Mtwo R and WaveOne
Bürklein et al. Human teeth (type not mentioned)
25º - 39º curvature
80 Mtwo
ProTaper
Reciproc
WaveOne
CR
CR
R
R
Radiographic No significant difference
Ramazani et al. Mn molar
20º - 40º
curvature
64 K-File
Mtwo
Reciproc
MI
CR
R
CBCT Mtwo > Reciproc
Nabavizadeh et al. Mx molar
25º - 35º
curvature
60 Reciproc
BioRace
R
CR
Radiographic Reciproc > BioRace
Navós et al. Mx molar
20º - 40º
curvature
60 ProTaper
MTwo
Reciproc
CR
CR
R
CBCT No significant difference
Moazzami et al. Mn molar
15º - 30º
curvature
45 Neoniti
Reciproc
CR
R
CBCT Reciproc > Neoniti
Ahmetoglu et al. Mx molar
CV - 20º - 45º
CP - 0º - 10º curvature
90 Self-Adjusting File
Revo-S
Reciproc
CR
CR
R
µCT Reciproc > Self-Adjusting File and Revo-S
Gergi et al. Mn molar
25º - 35º curvature
48 Reciproc
WaveOne
Twisted File Adaptive
R
R
AM
µCT Reciproc and WaveOne > Twisted File Adaptive
Pedulla et al. Mn molar
25º - 35º curvature
64 Mtwo
Twisted File Adaptive
CR and AM
CR and AM
µCT No significant difference
Gergi et al. Mn molar
25º - 35º curvature
48 Reciproc
WaveOne
Twisted File Adaptive
R
R
AM
µCT Reciproc and WaveOne > Twisted File Adaptive
Capar et al. Mn molar
20º - 40º curvature
120 Oneshape
ProTaper Universal
ProTaper Next
Reciproc
WaveOne
Twisted File
CR
CR
CR
R
R
AM
CBCT No significant difference

Mn, mandible; Mx, maxillar, VC, vestibular canal; PC, palatine canal; MI, manual instrumentation; AM, adaptive movement; CR, continuous rotation; R, reciprocation; CT, computed tomography; CBCT, cone beam computed tomography.