Publication details
Tření ortodontických drátů
| Title in English | Friction of orthodontic archwires |
|---|---|
| Authors | |
| Year of publication | 2016 |
| Type | Article in Periodical |
| Magazine / Source | Ortodoncie |
| MU Faculty or unit | |
| Citation | |
| Field | ORL, ophthalmology, stomatology |
| Keywords | static friction; dynamic friction; orthodontic archwires |
| Description | Aim: The aim of the presented work was to measure static as well as dynamic friction in different types of orthodontic archwires in vitro, and to compare the results between the groups ofarchwires. Material and method: 14 orthodontic archwires (0.018x0.025 inches) were measured. The measurements were done with device ZWICKZ020 for all 14 orthodontic archwires and five types of orthodontic brackets (stainless steel, gold, plastic, monocrystalline and polycrystalline ceramics). All measurements were taken under standard conditions in a lab, in a dry environment, and under the angulation 0°, 5°, and 10°. Results: Between individual types of orthodontic archwires, both static and dynamic friction is significantly different. The highest values are reported in orthodontic archwires made of beta-titanium alloys. Conclusion: It is hardly possible to change biological factors in mouth, however, the material of orthodontic archwires is one of mechanical factors through which we can influence the amount of friction between an orthodontic bracket and an arch wire. Nevertheless, we should bear in mind that in vitro situation is different from in vivo Conditions of the mouth cavity. |