Frictional resistance of active and passive aesthetic self-ligating brackets with different orthodontic wire sizes | ||
| Egyptian Orthodontic Journal | ||
| Article 5, Volume 52, December 2017, December 2017, Pages 45-54 PDF (2.51 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/eos.2017.78358 | ||
| Authors | ||
| Yasser M Emam* ; Sherif Morcos; Mohamed A Nadim; Abbadi A El Kady | ||
| Orthodontics department, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt | ||
| Abstract | ||
| The purpose of this study was toinvestigate the effect of passive and active Self-ligation of aesthetic brackets on the static and kinetic friction with different wire sizes. Two types of ceramic brackets were used; Empower Clear (active self-ligating bracket (ASLB)) and Damon Clear 2 (passive self-ligating bracket (PSLB)). They were coupled with 0.017 x 0.025-in and 0.019 x 0.025-in stainless-steel (SS) wires. A universal testing machine was used to pull the brackets along the distal end of the archwire. The test was performed at 5 mm/min crosshead speed over a distance of 8 mm to measure the static friction (SF) and the kinetic friction (KF) under dry conditions. The results showedthe PSLB’s to have significantly lower SF and KF with both wire sizes. | ||
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