Alternative Method for Fabrication of Power Arm

For years, orthodontists have searched for an efficient force system that can work quickly, accurately and effectively to shorten treatment time. A sliding mechanics force system might be an answer, if we know how to control and manipulate the force system well. From the Andrews straight wire appliance1,2 to the McLaughlin, Bennett, Trevesi appliance,3 sliding mechanics force systems have been widely used, mainly for anterior tooth retraction during space closure in orthodontic treatment. The use of power arms attached to the archwire enables one to readily achieve controlled movement of the anterior teeth. The force system for the desired type of tooth movement, such as bodily movement can be easily carried out by attaching various heights of power arm to the archwire in sliding mechanics.4 In sliding mechanics the power arm is placed mesial to the canine which enables better control of the anterior teeth. Simple technique for fabricating a hook has been devised which can be made at the time of archwire fabrication.