الفهرس 
Introduction
Frictional characteristic of Stainless Steel WiresOnly 14 pages are availabe for public view
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Abstract
The aim of this study was to evaluate the difference in friction between stainless steel and FRP archwires in combination with stainless steel and ceramic brackets in vitro.
A total of 28 brackets (14 stainless steel and 14 ceramic brackets) and 28 straight wire segments (14 stainless steel and 14 Fiber Reinforced Polymer) were used. They were equally divided into four groups; each group consisted of seven brackets and seven wire segments.
A special friction test rig was used to measure the frictional force, between bracket/archwire combinations. The archwires were slided through the brackets under dry condition at speed of 2 mm/min for four minutes. The average reading of the friction value was recorded from the digital monitor.
The test was repeated seven times, each time a new specimen of the wire and the bracket was used to eliminate the influence of wear. The wire was attached to the bracket using an elastomric ligature which was placed using a straight gun shooter to standardize the stretching of the ligature.
The results showed that stainless steel archwire in combination with the stainless steel bracket had the least frictional force among all the groups. The stainless steel archwire had statistically significant lower frictional force than the FRP archwire with both the stainless steel and the ceramic brackets.
The FRP archwire showed higher frictional force among both the stainless steel and ceramic brackets. This was attributed to the increased coefficient of friction which, in turn, leads to resisted sliding.