Abstract
BackgroundDuring the treatment of orthodontics, in the mechanics of slide, there takes place friction, which they reduce the slide of the arch across bracket. Therefore, clinical there takes place an increase of the time of treatment. There are different the technologies that try to reduce this friction, as the self-ligating braces. The purpose of this study was to research the in vitro behavior of JAL 90458 as a buffering agent which reduces friction between brackets and stainless steel arch wires of different cross sections and sizes.Material and MethodsThree types of stainless steel wires with different cross sections and three types of ligatures were used with and without JAL 90458 to measure the friction according to the time and distance traveled by the brackets on an inclined plane with two angulations. The Kruskal-Wallis one-way analysis of variance by ranks was applied to determine the degree of friction between the group using and the group not using the product (P ≤ .05).ResultsSeparate analysis of the arch wires, ligatures and angulation with and without the compound revealed statistically significant differences between the groups, showing that friction was reduced significantly when JAL 90458 was used (P ≤ .01). The 0.021x0.025” arch wires and the arch wires attached using elastic ligatures produce the least resistance to sliding among all of those analyzed when the product was not used (P ≤ .05).ConclusionsThe results show that JAL 90458 reduces friction independently of arch wire cross section, type of ligature and angulation of the measuring instrument. Key words:Friction, JAL 90458, arch wires, ligatures, in vitro.
Highlights
Throughout orthodontic treatment, brackets move along the arch wire or the arch wire moves along tubes and brackets in the alignment and gap-closing stages using a sliding mechanism
The objective of this study was to measure the resistance to sliding according to the time and distance traveled by a stainless steel bracket on stainless steel arch wires of various sizes and transversal cross sections with and without JAL 90458 on an inclined plane in order to prove that this compound reduces friction in the arch-bracket couple
With JAL 90458 we find friction reduction to be very high, showing substantial statistically significant differences
Summary
Throughout orthodontic treatment, brackets move along the arch wire or the arch wire moves along tubes and brackets in the alignment and gap-closing stages using a sliding mechanism. The development of new self-proclaimed low friction or zero friction materials and techniques that promise to reduce treatment length are based on changing the bracket design and surface structure of the arch wire This can be done with ion implantation [19,24,25,26], Poly (ChloroP-Xylylene) coating, hot nitrogen diffusion [19], alumina crystalline, gas nitriding [27], carbon coating, and plasma [26] and Teflon [16] deposition. The objective of this study was to measure the resistance to sliding according to the time and distance traveled by a stainless steel bracket on stainless steel arch wires of various sizes and transversal cross sections with and without JAL 90458 on an inclined plane in order to prove that this compound reduces friction in the arch-bracket couple. Conclusions: The results show that JAL 90458 reduces friction independently of arch wire cross section, type of ligature and angulation of the measuring instrument
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