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Table 2 The Rs and Rf temperatures of the three experimental NiTi instrument systems

From: Differential scanning calorimetric investigations of three rotary nickel-titanium instrument systems before and after simulated clinical uses

Subgroups Rs (°C) Rf (°C)
Segments
A B C D A B C D
Mean ± Standard deviation
1.1 43.48 ± 0.63 43.54 ± 1.18 43.55 ± 1.03 43.83 ± 0.88 26.46 ± 0.20 26.58 ± 0.16 26.79 ± 0.50 26.93 ± 0.68
1.2 43.90 ± 0.84 43.74 ± 0.70 43.55 ± 0.82 43.82 ± 0.82 26.47 ± 0.77 26.58 ± 0.21 26.66 ± 0.29 26.91 ± 0.68
1.3 43.49 ± 0.97 43.64 ± 1.03 43.88 ± 1.18 43.87 ± 0.82 26.44 ± 0.20 26.55 ± 0.18 26.66 ± 0.35 26.93 ± 0.75
2.1 36.19 ± 0.44 37.16 ± 0.20 39.97 ± 0.65 44.78 ± 0.35 30.77 ± 0.37 31.13 ± 0.32 32.83 ± 0.49 35.16 ± 0.51
2.2 36.19 ± 0.47 37.36 ± 0.54 40.12 ± 0.62 44.98 ± 0.47 30.82 ± 0.32 31.06 ± 0.42 32.51 ± 0.43 35.20 ± 0.58
2.3 36.12 ± 0.44 37.49 ± 0.61 40.38 ± 0.40 45.17 ± 0.38 30.76 ± 0.40 31.05 ± 0.44 32.36 ± 0.46 35.38 ± 0.50
3.1 45.32 ± 0.47 45.26 ± 0.62 45.37 ± 0.38 45.39 ± 0.39 36.47 ± 0.63 36.43 ± 0.61 36.16 ± 0.49 35.11 ± 0.78
3.2 45.31 ± 0.44 45.43 ± 0.41 45.37 ± 0.43 45.48 ± 0.42 36.58 ± 1.04 35.96 ± 0.84 36.32 ± 0.54 35.06 ± 1.00
3.3 45.23 ± 0.44 45.31 ± 0.42 45.36 ± 0.30 45.43 ± 0.36 36.31 ± 0.58 36.11 ± 0.57 36.16 ± 0.46 35.03 ± 0.82