Friction between various self-ligating brackets and archwire couples during sliding mechanics

Stefanos, Sennay; Secchi, Antonino G.; Coby, Guy; Tanna, Nipul; Mante, Francis K.

doi:10.1016/j.ajodo.2008.11.029

Cited by 33 publications

(36 citation statements)

References 21 publications

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“…It allows for passive trapping of the wire (except in the interactive brackets with larger diameter wires) without the involvement of any outside connecting agent and allows the use of lighter forces due to reduced friction, which helps to preserve the anchorage 3,9,10,14,17,18,21 .…”

Section: Discussionmentioning

confidence: 99%

“…There is increasing resistance to sliding as the angles increase [7][8][9][10][11][12][13] . Considering the types of brackets, the self-ligating system has lower frictional forces compared with conventional types 9,10,[12][13][14][15][16][17][18] . The Barbosa Versatile (BV) bracket 19 design may provide lower frictional force, greater sliding, and require less anchorage.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of friction produced by self-ligating, conventional and Barbosa Versatile brackets

Barbosa

Elias

Basting

2016

Rev. odontol. UNESP

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ResumoIntrodução: O bráquete Barbosa Versátil apresenta um desenho que pode promover menor resistência friccional e maior deslize. No entanto, nenhum estudo in vitro avaliou seu mecanismo de deslize e resistência ao atrito, mesmo quando comparado com outros bráquetes autoligados ou convencionais. Objetivo: Comparar a resistência ao atrito entre bráquetes autoligados (EasyClip/ Aditek, Damon MX/ Ormco e In Ovation R/ GAC), convencionais (Balance Roth/ GAC, and Roth Monobloco/ Morelli) e o bráquete Barbosa Versátil (Barbosa Versatile/ GAC) com diferentes angulações e fios. Material e método: Os bráquetes foram avaliados com fios de aço inox 0.014", 0.018", 0.019"×0.025" e 0.021"×0.025", com angulações de 0, 5, 10, 15 e 20 graus. Amarrias foram realizadas com ligaduras elastoméricas para os bráquetes convencionais e para o Barbosa Versátil, enquanto que se utilizou o sistema de fechamento próprio para os bráquetes autoligados. A máquina de teste universal foi utilizada para as avaliações de resistência ao atrito entre os bráquetes e fios. Resultado: ANOVA em esquema fatorial 4 × 5 × 6 (bráquetes × angulação × fios) e o teste de Tukey mostraram que houve diferenças significativas para todos os fatores e interações (p<0,0001). Houve menor resistência ao atrito para o bráquete Barbosa Versátil e maior para os bráquetes Roth Monobloco e Balance. Conclusão: Menor resistência ao atrito foi obtida com o bráquete Barbosa Versátil e com os autoligados em comparação com os bráquetes convencionais. O aumento do diâmetro dos fios aumenta a resistência ao atrito. Menores angulações promovem menor resistência ao atrito.Descritores: Fricção; fios ortodônticos; bráquetes ortodônticos. Abstract Introduction:The Barbosa Versatile bracket design may provide lower frictional force and greater sliding. However, no in vitro studies have shown its sliding mechanisms and frictional resistance, particularly in comparison with other self-ligating or conventional brackets. Objective: To compare the frictional resistance among self-ligating brackets (EasyClip/ Aditek, Damon MX/ Ormco and In Ovation R/ GAC); conventional brackets (Balance Roth/ GAC, and Roth Monobloc/ Morelli); and Barbosa Versatile bracket (Barbosa Versatile/ GAC) with different angles and arch wires. Material and method: Brackets were tested with the 0.014", 0.018", 0.019"×0.025" and 0.021"×0.025" stainless steel wires, with 0, 5, 10, 15 and 20 degree angulations. Tying was performed with elastomeric ligature for conventional and Barbosa Versatile brackets, or with a built-in clip system of the self-ligating brackets. A universal testing machine was used to obtain sliding strength and friction value readouts between brackets and wires. Result: Three-way factorial ANOVA 4×5×6 (brackets × angulation × wire) and Tukey tests showed statistically significant differences for all factors and all interactions (p<0.0001). Static frictional resistance showed a lower rate for Barbosa Versatile bracket and higher rates for Roth Monobloc and Balance brackets. Conclusion: The lowest frict...

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of friction produced by self-ligating, conventional and Barbosa Versatile brackets

Barbosa

Elias

Basting

2016

Rev. odontol. UNESP

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“…However, the use of such rigid heavy wire leads to the problem of increased friction between the wire and the brackets 4,[7][8][9] . There have been many studies on the reduction of friction between brackets and wire 2,4,[10][11][12][13][14][15][16][17] . These mainly involved the use of self-ligating brackets or deceasing the contact area between the brackets and the wire 4,6,14,17) .…”

Section: Introductionmentioning

confidence: 99%

“…There have been many studies on the reduction of friction between brackets and wire 2,4,[10][11][12][13][14][15][16][17] . These mainly involved the use of self-ligating brackets or deceasing the contact area between the brackets and the wire 4,6,14,17) . Although these methods are effective at reducing the ligation force and thus the friction, control of tooth movement is more difficult due to the reduced contact between the brackets and the wire.…”

Section: Introductionmentioning

confidence: 99%

Reduction in static friction by deposition of a homogeneous diamond-like carbon (DLC) coating on orthodontic brackets

et al. 2015

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In orthodontics, a reduction in static friction between the brackets and wire is important to enable easy tooth movement. The aim of this study was to examine the effects of a homogeneous diamond-like carbon (DLC) coating on the whole surfaces of slots in stainless steel orthodontic brackets on reducing the static friction between the brackets and the wire. The DLC coating was characterized using Raman spectroscopy, surface roughness and contact angle measurements, and SEM observations. Rectangular stainless steel and titanium-molybdenum alloy wires with two different sizes were employed, and the static friction between the brackets and wire was measured under dry and wet conditions. The DLC coating had a thickness of approximately 1.0 μm and an amorphous structure was identified. The results indicated that the DLC coating always led to a reduction in static friction.

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“…The Passive SLB does not apply a ligation force to the archwire because the slide covers only the slot, thus restraining the archwire. 7 Reduction of friction can mainly be achieved either by decreasing the friction coefficient of the bracket or wire materials or by decreasing the force of ligation acting on the wire. Numerous studies have demonstrated a dramatic decrease in friction for SLBs, compared to conventional bracket designs.…”

Section: Discussionmentioning

confidence: 99%

Comparative evaluation of anchorage loss between self-ligating appliance and Conventional pre-adjusted edgewise appliance using sliding mechanics – A retrospective study

Juneja¹,

Shivaprakash

Chopra³

et al. 2015

Medical Journal Armed Forces India

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Friction between various self-ligating brackets and archwire couples during sliding mechanics

Cited by 33 publications

References 21 publications

Evaluation of friction produced by self-ligating, conventional and Barbosa Versatile brackets

Evaluation of friction produced by self-ligating, conventional and Barbosa Versatile brackets

Reduction in static friction by deposition of a homogeneous diamond-like carbon (DLC) coating on orthodontic brackets

Comparative evaluation of anchorage loss between self-ligating appliance and Conventional pre-adjusted edgewise appliance using sliding mechanics – A retrospective study

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