Comparison of frictional resistance between passive self-ligating brackets and slide-type low-friction ligature brackets during the alignment and leveling stage

ABSTRACT Aim The aim of this in vitro study was to investigate the efficiency of the new generation of elastomeric ligatures with innovative designs (SlideTM and AlastiKTM Easy-to-Tie) in reducing frictional resistance (FR) during sliding mechanics as compared with conventional ligatures. Materials and Methods Sixty ligature samples divided into four groups were used for the study. Group A: QuiK-StiK™ (3M Unitek, Monrovia, CA, USA), Group B: AlastiK™ Easy-to-Tie (3M Unitek, Monrovia, CA, USA), Group C: Slide™ (Leone, Firenze, Italy), and Group D: SS ligatures 0.010” (Libral Traders, New Delhi, India). Universal Testing Machine, Instron was used for measuring FR at the bracket-wire interface. Results There was statistically significant difference in FR among all the four groups of ligatures tested (p < 0.001). Slide ligatures produced the least amount of FR followed by SS ligatures, Easy-to-Tie, and QuiK-StiK in the increasing order of the FR values registered. Conclusion SlideTM ligatures may represent a valid alternative to passive self-ligating brackets when minimal amount of friction is desired. Angulation introduced into the elastomeric ligatures reduces the friction in comparison to conventional elastomeric ligatures. How to cite this article Vivek PS, Ravindranath VK, Karandikar G, Doshi S, Mhatre A, Sonawane M. Frictional Characteristics of the Newer Low-friction Elastomeric Ligatures. J Contemp Dent 2016;6(1):19-23.

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An in vitro investigation of the influence of self-ligating brackets, low friction ligatures, and archwire on frictional resistance

European Journal of Orthodontics ◽

10.1093/ejo/cjm007 ◽

2007 ◽

Vol 29 (4) ◽

pp. 390-397 ◽

Cited By ~ 30

Author(s):

S. Tecco ◽

D. Di Iorio ◽

G. Cordasco ◽

I. Verrocchi ◽

F. Festa

Keyword(s):

Frictional Resistance ◽

Low Friction ◽

In Vitro Investigation

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The Influence of Ice-Resistant Coatings Characteristics to the Energy Efficiency of Ice-Going Ships

E3S Web of Conferences ◽

10.1051/e3sconf/202132001007 ◽

2021 ◽

Vol 320 ◽

pp. 01007

Author(s):

V.A. Veselov ◽

M.V. Kitaev ◽

P.O. Pastukhov ◽

O.E. Surov

Keyword(s):

Energy Efficiency ◽

Friction Coefficient ◽

Power Plant ◽

Service Life ◽

Frictional Resistance ◽

Experimental Tests ◽

Operating Conditions ◽

The Other ◽

Low Friction ◽

Ice Navigation

The main purpose of ice-resistant coatings designed for icebreakers and ice navigation ships is the ability to protect of the ship’s hull in the most severe operating conditions. The special coatings certified by the Classification Societies for ice abrasion can provide this protection. These coatings allow to reduce the required thickness of the ship’s hull and reduce the construction weight of the ships. On the other hand, these coatings must have a low friction coefficient, which reduce the frictional resistance of the hull on ice and fuel consumption, increase the service life of the ship and power plant, reduce CO2 emissions into the atmosphere and affect to the operational and economic efficiency of the ship. In this paper, we present the results of experimental tests of friction coefficient on ice for various types of ice-resistant coatings and analysis the influence of ice-resistant coatings characteristics to the energy efficiency of ice-going ships.

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Frictional resistance in plastic preadjusted brackets ligated with low-friction and conventional elastomeric ligatures

Journal of Orthodontics ◽

10.1179/14653120722887 ◽

2009 ◽

Vol 36 (1) ◽

pp. 17-22 ◽

Cited By ~ 3

Author(s):

Hideki Ioi ◽

Yumi Yanase ◽

Michiya Uehara ◽

Atsushi Hara ◽

Shunsuke Nakata ◽

...

Keyword(s):

Frictional Resistance ◽

Low Friction

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Friction between Archwires of Different Sizes, Cross-Section and Alloy and Brackets Ligated with Low-Friction or Conventional Ligatures

The Angle Orthodontist ◽

10.2319/101107-487.1 ◽

2009 ◽

Vol 79 (1) ◽

pp. 111-116 ◽

Cited By ~ 7

Author(s):

Simona Tecco ◽

Stefano Tetè ◽

Felice Festa

Keyword(s):

Stainless Steel ◽

Ambient Temperature ◽

Cross Section ◽

Null Hypothesis ◽

Frictional Resistance ◽

Nickel Titanium ◽

Molybdenum Alloy ◽

Low Friction ◽

Significant Difference ◽

Orthodontic Archwires

Abstract Objective: To test the null hypothesis that no statistically significant difference in frictional resistance is noted when round or rectangular archwires are used in conjunction with low-friction ligatures (small, medium, or large) or conventional ligatures. Materials and Methods: A total of 10 stainless steel brackets, a 0.022-in slot, and various orthodontic archwires, ligated with low-friction ligatures or conventional ligatures, were tested to compare frictional resistance. The archwires employed were 0.014-in and 0.016-in nickel titanium (NiTi), 0.018-in stainless steel (SS), 0.016 × 0.022-in NiTi, 0.016 × 0.022-in SS, 0.017 × 0.025-in titanium molybdenum alloy (TMA), 0.017 × 0.025-in NiTi, 0.017 × 0.025-in SS, 0.019 × 0.025-in SS, and 0.019 × 0.025-in NiTi. Each bracket/archwire combination was tested 10 times in the dry state at an ambient temperature of 34°C. Results: Low-friction ligatures with round archwires showed statistically significantly lower frictional resistance than did conventional ligatures. When coupled with 0.016 × 0.022-in NiTi and SS, no statistically significant difference was observed among the four groups. When coupled with 0.017 × 0.025-in archwires, low-friction ligatures showed statistically significantly greater frictional resistance than was seen with conventional ligatures. When coupled with 0.019 × 0.025-in NiTi, low-friction ligatures showed statistically significantly greater frictional resistance than did conventional ligatures, but no difference among the four groups was observed with the 0.019 × 0.025-in SS. No significant difference was assessed among low-friction ligatures of different sizes. Conclusion: Low-friction ligatures show lower friction when compared with conventional ligatures when coupled with round archwires, but not when coupled with rectangular ones.

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