The dynamnic frictional resistance between orthodontic brackets and arch wires

Tselepis, Michael; Brockhurst, P. J.; West, V. C.

doi:10.1016/s0889-5406(94)70030-3

Cited by 117 publications

(104 citation statements)

References 15 publications

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“…In an attempt to increase the value of translational meaning of in-vitro studies to in-vivo situations, previous studies have also incorporated some lubricants such as silicone 1 or Ringer solution 5 in combination with glucose.…”

Section: Discussionmentioning

confidence: 99%

“…4,5 The resistance to friction is characterized as either static or kinetic. Static friction is the force required to produce the initial movement and it is always stronger than the kinetic force that keeps the body in motion.…”

mentioning

confidence: 99%

“…8 Friction between the bracket and archwire can cause up to 50% loss of force. 4,5,9 As a result, the desired tooth movement is slowed down or even inhibited. Frictional resistance during orthodontic treatment is a key factor in determining the force systems required for moving the teeth.…”

mentioning

confidence: 99%

“…2,10,11 Frictional resistance must therefore be kept to a minimum during sliding mechanics so that orthodontic tooth movement can be generated through optimal light forces with better patient comfort. 3 The theoretic considerations and clinical implications of friction during sliding in orthodontics demonstrated that this type of force depends on complex variables, such as bracket types (conventional vs. self-ligating), 2,5,8 angulation of archwire to bracket, 12 arch-wire 7 types, 13 dimensions and shape of the slot and the wire, 3,14 ligating force, 8,14 oscillating displacements, 2 repeated use of brackets, 11 and dry and wet environments. 4,15 Furthermore, it was reported that resistance to sliding or friction of an arch-wire-bracket assembly is a combined effect of 3 components namely, classical friction, elastic binding and/or physical notching.…”

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confidence: 99%

“…5,8,15 The materials used can also differ from conventional composite, porcelain, metal brackets 18 to self-ligating ones and to various arch-wires. 3,15 During the last decade, various in-vitro techniques have been used to describe the frictional behaviour of archwire-bracket combinations.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Effect of dental arch convexity and type of archwire on frictional forces

Fourie

Özcan

Sandham

2009

American Journal of Orthodontics and Dentofacial Orthopedics

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

mentioning

confidence: 99%

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Effect of dental arch convexity and type of archwire on frictional forces

Fourie

Özcan

Sandham

2009

American Journal of Orthodontics and Dentofacial Orthopedics

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Anchorage

Al‐Bitar¹

2021

Preadjusted Edgewise Fixed Orthodontic Appliances

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Surface ultrastructure and mechanical properties of three different white‐coated NiTi archwires

et al. 2015

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The recent trend in orthodontic treatment is to apply esthetic materials to orthodontic appliances with adequate clinical performance. The aim of this study was to investigate the ultrastructure (surface roughness) and mechanical properties (load-deflection curve) of three as-received, white-coated superelastic nickel-titanium (NiTi) archwires using atomic force microscopy (AFM) and modified three-point bending test assessments, respectively. Three representative esthetic NiTi archwires were used, silver-platinum- and polymer-coated NiTi Natural Dany (Dany group), epoxy resin-coated Orthoforce Ultraesthetic™ (Ultra group), and Teflon®-coated Perfect (Perfect group). Uncoated metallic areas of each wire were used as controls. The diameter of the Perfect archwire was significantly larger than that of other archwires. The Dany and Ultra groups showed more deflection than the Perfect group. The hysteresis area of the Dany and Ultra groups showed approximately two- and fourfold increases compared to the control and the Perfect group. The Dany group (2037.5 ± 527.3 nm) had the highest peak-to-peak surface roughness in the coated areas, followed by the Ultra group (811.1 ± 407.5 nm) and the Perfect group (362.7 ± 195.8 nm). However, reverse nanostructural changes in the surface roughness were observed in the uncoated metallic areas. The results suggested that the load-deflection properties and the surface roughness of superelastic NiTi archwires were affected directly by the coating materials. Although the efficiency of orthodontic treatment was affected by various factors, when only considering the frictional force and mechanostructural properties, the epoxy resin-coated Orthoforce Ultraesthetic™ archwires were the most effective for orthodontic treatment.

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The dynamnic frictional resistance between orthodontic brackets and arch wires

Cited by 117 publications

References 15 publications

Effect of dental arch convexity and type of archwire on frictional forces

Effect of dental arch convexity and type of archwire on frictional forces

Anchorage

Surface ultrastructure and mechanical properties of three different white‐coated NiTi archwires

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