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Table 1 The As and Af 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

As (°C)

Af (°C)

Segments

A

B

C

D

A

B

C

D

Mean ± Standard deviation

1.1

30.69 ± 0.98

31.55 ± 1.09

32.79 ± 1.15

31.97 ± 0.69

47.65 ± 0.48

49.36 ± 0.73

50.62 ± 1.03

51.31 ± 1.79

1.2

30.70 ± 0.81

31.35 ± 1.24

32.95 ± 1.16

31.91 ± 1.12

47.43 ± 0.45

49.45 ± 0.35

50.45 ± 1.08

51.11 ± 1.50

1.3

30.53 ± 0.72

31.47 ± 1.04

32.84 ± 0.98

31.87 ± 0.78

47.62 ± 0.70

49.36 ± 0.46

50.34 ± 1.10

51.12 ± 1.10

P value

0.883

0.924

0.945

0.967

0.634

0.904

0.845

0.943

2.1

35.62 ± 0.34

37.06 ± 0.47

38.92 ± 0.56

41.78 ± 0.44

41.45 ± 0.33

42.90 ± 0.75

44.99 ± 0.60

49.57 ± 0.85

2.2

35.51 ± 0.28

37.10 ± 0.43

38.97 ± 0.59

41.81 ± 0.40

41.42 ± 0.40

42.63 ± 0.62

45.10 ± 0.81

50.01 ± 0.83

2.3

35.46 ± 0.29

36.65 ± 0.67

38.73 ± 0.35

41.86 ± 0.33

41.47 ± 0.41

43.48 ± 0.90

45.39 ± 0.66

50.29 ± 0.77

P value

0.474

0.136

0.542

0.906*

0.958

0.055

0.438

0.158

3.1

44.57 ± 1.13

43.94 ± 0.55

43.58 ± 0.79

43.98 ± 0.45

53.89 ± 0.83

53.00 ± 1.22

52.37 ± 1.17

53.08 ± 1.11

3.2

44.62 ± 1.22

44.01 ± 0.56

43.77 ± 0.96

43.83 ± 0.68

54.07 ± 1.20

53.39 ± 0.99

52.38 ± 1.34

53.40 ± 1.09

3.3

44.59 ± 0.97

44.08 ± 0.62

43.82 ± 0.59

43.93 ± 0.60

53.79 ± 0.94

53.28 ± 1.11

52.36 ± 1.07

53.18 ± 1.31

P value

0.993

0.873

0.792

0.850

0.823

0.718

0.999

0.826

  1. P > 0.05, ANOVA test
  2. *Kruskal Wallis test
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BMC Oral Health

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