In vitro study of frictional forces during sliding mechanics of “reduced-friction” brackets

2003 ◽  
Vol 124 (1) ◽  
pp. 69-73 ◽  
Author(s):  
Meir Redlich ◽  
Yaniv Mayer ◽  
Doron Harari ◽  
Israel Lewinstein
Keyword(s):  
In Vitro Study ◽  
Vitro Study ◽  
Frictional Forces ◽  
Sliding Mechanics

Comparison of friction of metallic and ceramic brackets during sliding mechanics after prophylaxis with sodium bicarbonate jet: An in vitro study

2021 ◽  
Author(s):  
Aline Rosa Galavotti Viana ◽  
Diego Patrik Alves Carneiro ◽  
Pricila Alves Carneiro ◽  
Américo Bortolazzo Correr ◽  
Silvia Amélia Scudeler Vedovello ◽  
...  
Keyword(s):  
Sodium Bicarbonate ◽  
In Vitro Study ◽  
Vitro Study ◽  
Ceramic Brackets ◽  
Sliding Mechanics

scholarly journals Friction Forces during Sliding of Various Brackets for Malaligned Teeth: An In Vitro Study

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Vito Crincoli ◽  
Letizia Perillo ◽  
Maria Beatrice Di Bisceglie ◽  
Antonio Balsamo ◽  
Vitaliano Serpico ◽  
...  
Keyword(s):  
Friction Force ◽  
In Vitro Study ◽  
Friction Forces ◽  
Orthodontic Wire ◽  
Conventional Brackets ◽  
Frictional Forces ◽  
The Right ◽  
Post Hoc ◽  
Sliding Mechanics

Aims. To measure the friction force generated during sliding mechanics with conventional, self-ligating (Damon 3 mx, Smart Clip, and Time 3) and low-friction (Synergy) brackets using different archwire diameters and ligating systems in the presence of apical and buccal malalignments of the canine.Methods. An experimental setup reproducing the right buccal segment of the maxillary arch was designed to measure the friction force generated at the bracket/wire and wire/ligature interfaces of different brackets. A complete factorial plan was drawn up and a three-way analysis of variance (ANOVA) was carried out to investigate whether the following factors affect the values of friction force: (i) degree of malalignment, (ii) diameter of the orthodontic wire, and (iii) bracket/ligature combination. Tukey post hoc test was also conducted to evaluate any statistically significant differences between the bracket/ligature combinations analyzed.Results. ANOVA showed that all the above factors affect the friction force values. The friction force released during sliding mechanics with conventional brackets is about 5-6times higher than that released with the other investigated brackets. A quasilinear increase of the frictional forces was observed for increasing amounts of apical and buccal malalignments.Conclusion. The Synergy bracket with silicone ligature placed around the inner tie-wings appears to yield the best performance.

scholarly journals Efficacy of Super Slick Elastomeric Modules in reducing Friction during Sliding: A Comparative in vitro Study

2014 ◽  
Vol 15 (5) ◽  
pp. 543-551 ◽  
Author(s):  
Sadhiq Khan Pattan ◽  
Revathi Peddu ◽  
Shyam Kumar Bandaru ◽  
Devikanth Lanka ◽  
Kalyani Mallavarapu ◽  
...  
Keyword(s):  
Testing Machine ◽  
Calculated Data ◽  
In Vitro Study ◽  
Frictional Resistance ◽  
Human Saliva ◽  
Vitro Study ◽  
Kinetic Friction ◽  
Wet Condition ◽  
Frictional Forces

ABSTRACT Aim To evaluate and compare the frictional resistance produced by Super Slick modules during sliding with four different types of brackets and four ligature types both in conventional and figure-of-8 ligation method with saliva as lubricant. Materials and methods The frictional resistance was evaluated by using four different ligatures on 0.019” × 0.025” stainless steel (SS) archwires using four different brackets using an universal testing machine with unstimulated saliva as a lubricant. Mean and SD values were calculated. Data was statistically analyzed using analysis of variance ANOVA with post hoc test. Results The results showed that self-ligating brackets produced least frictional forces. Among all other tested combinations, Teflon-coated SS ligatures in ceramic with metal slot brackets produced least coefficient of static and kinetic friction and full ceramic brackets ligated with Super Slick elastomeric modules demonstrated the highest, with other combinations falling in between. Conclusion Super Slick elastomeric modules, produced highest coefficient of both static and kinetic friction with the conventional and figure-of-8 ligation technique even in wet conditions using natural fresh human saliva. Clinical significance Both static and kinetic frictional resistance play an important role during sliding mechanics. Various factors have been attributed for friction. However, bracket type, archwire material, type of ligature and method of ligation are important variables. Recently polymeric coated slick elastomeric modules were introduced with the claim that they produce very low frictional forces in wet condition. Contrary to the claim made by the manufacturers of Super Slick elastomeric modules, they produced highest coefficient of both static and kinetic friction with the conventional and figure-of-8 ligation technique. How to cite this article Pattan SK, Peddu R, Bandaru SK, Lanka D, Mallavarapu K, Pathan AB. Efficacy of Super Slick Elastomeric Modules in reducing Friction during Sliding: A Comparative in vitro Study. J Contemp Dent Pract. 2014; 15(5):543-551.

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