HERO Shaper Profile Twisted file
Apical region
Inner canal wall 58.4 ± 14.43 80.7 ± 29.64 132.8 ± 50.16
Outer canal wall 128.9 ± 62.98 154.5 ± 48.85 138.7 ± 42.39
Middle region
Inner canal wall 39.0 ± 27.21 107.2 ± 31.29 138.5 ± 63.97
Outer canal wall 31.2 ± 26.11 110.9 ± 40.56 47.2 ± 30.15
Coronal region
Inner canal wall 13.5 ± 14.14 49.0 ± 31.44 44.1 ± 47.35
Outer canal wall 17.3 ± 21.73 37.8 ± 42.53 50.0 ± 36.62
Table 5: Mean changes (μm) across inner and outer canal wall measurement sites by region.