The effects of third-order torque and self - Saint Louis University

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Friction (grams) 800 700 600 500 400 300 200 100 0 -15 -10 -5 0 Torque (degrees) +5 +10 +15 Figure 3-11: Plots of mean kinetic frictional force within the dental segment vs. torque angle at the second premolar from five sets of crown-attachments. 88 Victory In-Ovation R Time2 Damon 3MX SmartClip
Figure 3-12: Cross-section diagrams of a 0.019- x 0.025-inch wire. The buccolingual dimension of the wire when rotated 10 degrees (line BD) is calculated by multiplying cos Φ2 by the hypotenuse AB. 89
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THE EFFECTS OF THIRD-ORDER TORQUE A
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of torque, all five attachment sets
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COMMITTEE IN CHARGE OF CANDIDACY: A
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ACKNOWLEDGEMENTS The author wishes
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LIST OF TABLES Table 2-1: Partial O
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CHAPTER 1: INTRODUCTION The special
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CHAPTER 2: REVIEW OF THE LITERATURE
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surfaces. 6 The magnitudes of the c
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Since the introduction to orthodont
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that the application of the Amonton
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archwires. At binding angulations,
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A phenomenon known as “cold weldi
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of round wire with the slot created
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acket and the gold-lined Luxi brack
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and wire stiffness. As bracket widt
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ligation-friction relationship. The
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designs have been introduced to the
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otated tooth or a twisted rectangul
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to incisor irregularity after initi
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added. Similarly, Bunkall 15 noted
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couple, resulting in the delivery i
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Another factor that influences brac
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References 1. Stoner MM. Force cont
Page 47 and 48: 19. Kusy RP, Whitley JQ, Ambrose WW
Page 49 and 50: 37. Kusy RP, Whitley JQ, Mayhew MJ,
Page 51 and 52: 56. Khambay B, Millett D, McHugh S.
Page 53 and 54: 75. Tecco S, Festa F, Caputi S, Tra
Page 55 and 56: 93. Thorstenson GA, Kusy RP. Effect
Page 57 and 58: Tables Table 2-1: Partial Overview
Page 59 and 60: significantly less friction than th
Page 61 and 62: optimal clinical results. Fixed-app
Page 63 and 64: self-ligating bracket systems to ma
Page 65 and 66: unconstrained rotation around the l
Page 67 and 68: surface of a tooth-crown. The const
Page 69 and 70: 0.025-inch NuBryte Standard Arch st
Page 71 and 72: test-archwire in place and ligated,
Page 73 and 74: aseline values at 0 degrees of torq
Page 75 and 76: increased to only five degrees. The
Page 77 and 78: tension on one edge of the wire and
Page 79 and 80: set, when the torque angle was incr
Page 81 and 82: with active, self-ligating sets. Th
Page 83 and 84: 11. Kusy RP, Whitley JQ. Effects of
Page 85 and 86: 33. Andreasen GF, Quevedo FR. Evalu
Page 87 and 88: 54. Downing A, McCabe JF, Gordon PH
Page 89 and 90: 76. Thorstenson GA, Kusy RP. Effect
Page 91 and 92: Table 3-2: Significance levels (α
Page 93 and 94: Table 3-4: Mean differences in fric
Page 95 and 96: Figure 3-3: Control of the third-or
Page 97: Figure 3-9: Victory bracket Figure
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The effects of third-order torque and self - Saint Louis University

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