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Table 3 The enthalpy changes in the heating (∆H1) and cooling (∆H2) processes

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

Subgroups

∆H1 (J/g)

∆H2 (J/g)

Segments

A

B

C

D

A

B

C

D

Mean ± Standard deviation

1.1

1.51 ± 0.13

1.68 ± 0.13

1.31 ± 0.21

1.67 ± 0.11

1.00 ± 0.23

1.20 ± 0.15

1.28 ± 0.12

1.37 ± 0.12

1.2

1.42 ± 0.11

1.34 ± 0.13

1.33 ± 0.14

1.52 ± 0.13

0.79 ± 0.19

1.01 ± 0.12

1.15 ± 0.17

1.22 ± 0.11

1.3

0.96 ± 0.22

0.96 ± 0.37

1.10 ± 0.29

1.39 ± 0.14

0.63 ± 0.13

0.94 ± 0.13

1.05 ± 0.22

1.19 ± 0.13

2.1

3.74 ± 0.32

4.88 ± 0.31

4.25 ± 0.52

3.72 ± 0.18

1.68 ± 0.25

2.98 ± 0.40

3.44 ± 0.29

3.45 ± 0.13

2.2

0.85 ± 0.15

5.81 ± 0.81

5.18 ± 0.48

4.06 ± 0.15

0.48 ± 0.33

2.97 ± 0.93

3.54 ± 0.33

3.53 ± 0.20

2.3

0.76 ± 0.13

4.36 ± 0.17

4.32 ± 0.10

3.79 ± 0.08

0.40 ± 0.26

2.29 ± 0.51

3.59 ± 0.33

3.41 ± 0.20

3.1

6.58 ± 0.95

7.76 ± 0.65

7.53 ± 1.49

6.26 ± 0.46

2.40 ± 0.37

4.19 ± 0.23

4.54 ± 0.18

4.64 ± 0.20

3.2

6.61 ± 0.49

7.70 ± 1.06

7.65 ± 1.54

6.45 ± 0.69

2.34 ± 0.32

3.99 ± 0.22

4.36 ± 0.22

4.66 ± 0.27

3.3

6.27 ± 0.70

7.71 ± 0.80

7.11 ± 1.06

6.06 ± 0.62

2.08 ± 0.52

3.97 ± 0.21

4.44 ± 0.36

4.65 ± 0.29

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BMC Oral Health

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