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Progress in Orthodontics

Table 2 The mean values yielded by as received and retrieved traditional orthodontic wires

From: The mechanical behavior of as received and retrieved nickel titanium orthodontic archwires

Manufacturer

 

As received

SD

In vitro

SD

In vivo 1

SD

In vivo 2

SD

Dentaurum

Plateau force, gf

147.8

3.9

173.4

9.1

  

141.2

13.9

0.014

Plateau slope, gf/mm

− 2.8

1.7

4.2

2.3

  

3.4

2.3

 

Plateau length, mm

1.7

0.4

1.4

0.3

  

1.3

0.2

Dentaurum

Plateau force, gf

222.9

11.9

204.0

63.6

225.1

1.5

184.3

62.9

0.016

Plateau slope, gf/mm

− 6.4

4.0

9.5

4.2

4.4

2.0

6.2

5.2

 

Plateau length, mm

1.4

0.3

1.4

0.1

1.4

0.1

1.6

0.3

Forestadent

Plateau force, gf

124.3

16.3

123.0

11.2

  

131.4

24.9

0.014

Plateau slope, gf/mm

4.4

2.1

5.8

7.0

  

1.86

0.5

 

Plateau length, mm

1.6

0.8

1.7

0.2

  

1.9

0.8

Forestadent

Plateau force, gf

211.2

5.3

198.9

15.5

239.3

15.7

260.0

4.8

0.016

Plateau slope, gf/mm

5.9

1.6

− 2.9

6.8

4.5

10.9

9.4

3.5

 

Plateau length, mm

1.1

0.3

1.5

0.1

1.3

0.1

1.3

0.3

Ormco

Plateau force, gf

110.0

7.0

60.7

30.3

  

128.7

4.1

0.014

Plateau slope, gf/mm

− 3.4

1.9

0.5

3.7

  

1.7

3.2

 

Plateau length, mm

1.7

0.4

1.7

0.6

  

1.4

0.2

Ormco

Plateau force, gf

159.7

9.0

131.7

46.1

173.0

21.7

131.3

44.7

0.016

Plateau slope, gf/mm

− 11.4

6.0

− 4.6

6.8

− 17.8

8.8

− 10.3

9.4

 

Plateau length, mm

2.1

0.4

1.9

0.3

1.9

0.2

1.7

0.5

Ormco

Plateau force, gf

615.6

17.3

618.7

24.5

490.8

282.8

646.1

78.9

0.019X0.025

Plateau slope, gf/mm

20.3

32.9

28.8

22.3

14.0

26.7

49.2

45.9

 

Plateau length, mm

1.6

0.2

1.5

0.2

2.3

0.2

2.0

0.2

G&H

Plateau force, gf

125.0

2.1

124.8

7.6

  

106.8

2.7

0.014

Plateau slope, gf/mm

2.7

1.0

3.3

5.1

  

6.4

6.0

 

Plateau length, mm

0.9

0.5

1.7

1.0

  

1.3

0.4

G&H

Plateau force, gf

159.1

2.5

187.5

10.3

173.7

6.0

167.5

6.5

0.016

Plateau slope, gf/mm

− 5.9

3.8

8.8

8.3

5.7

6.6

10.2

5.6

 

Plateau length, mm

1.8

0.2

1.3

0.4

1.4

0.5

1.7

0.4

G&H

Plateau force, gf

697.4

3.3

636.4

207.7

581.4

122.3

687.2

4.6

0.019X0.025

Plateau slope, gf/mm

28.2

6.9

51.3

23.6

− 9.1

61.6

41.2

24.5

 

Plateau length, mm

2.2

0.1

2.3

0.3

1.9

0.2

1.9

0.3

American Orthodontics

Plateau force, gf

133.3

2.0

169.6

8.2

  

118.7

31.3

0.014

Plateau slope, gf/mm

− 1.8

2.3

5.8

2.5

  

− 2.8

1.8

 

Plateau length, mm

0.9

0.2

1.4

0.4

  

1.1

0.5

American Orthodontics

Plateau force, gf

216.7

4.0

262.6

26.1

152.0

14.9

180.0

70.4

0.016

Plateau slope, gf/mm

− 2.5

5.7

16.2

6.7

− 25.7

15.9

0.1

10.6

 

Plateau length, mm

1.7

0.4

1.3

0.2

0.8

0.1

1.4

0.3

American Orthodontics

Plateau force, gf

674.1

21.8

806.2

8.0

618.7

87.7

705.9

63.3

0.019X0.025

Plateau slope, gf/mm

34.7

17.7

61.0

20.7

− 11.9

47.7

51.1

25.5

 

Plateau length, mm

2.2

0.1

2.0

0.2

1.8

0.3

1.6

0.2

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