The “arch wires” that attach to the brackets on each tooth on a set of braces are so named because they extend along the arches created by the jaws. While traditional stainless steel arch wires exert more force on the teeth initially, the force dissipates relatively quickly. Newer nickel titanium wires keep the pressure on because this alloy has an extraordinary characteristic called “shape memory.” No matter how much the orthodontist bends the wire, it will spring back to its original shape. When cold, the wire is pliable enough to be threaded through brackets. Then, as the wire warms in the patient’s mouth, it resumes its original shape to exert a continuous, gentle force.
Please call Fredericksburg Orthodontics & Invisalign Center at 540-898-7211 to schedule a free orthodontic consultation. Our practice is committed to using only the most advanced and proven orthodontic treatments, materials, and appliances so you can rest assured that your family’s care is always in the best possible hands. We are located at 10618 Spotsylvania Ave. (Lee’s Hill Center on Rt. 1 South). Office hours are Monday through Friday with evening appointments available.
P.S. While arch wires that are round in cross-section may be used at the beginning of treatment because they are relatively forgiving and elastic, those that are rectangular or square in cross-section will likely be used later as teeth approach desired alignment.