What does the term “arch wire” refer to in orthodontics?

The term "arch wire" in orthodontics refers specifically to the wire that connects the brackets on orthodontic braces. This wire is crucial as it serves several important functions in the alignment and movement of the teeth. The arch wire provides the necessary force to guide the teeth into their desired positions by exerting pressure on the brackets that are bonded to the teeth.

As the treatment progresses, the arch wire can be changed to different sizes and types to continue the corrective movement of the teeth. The design and material of the arch wire can influence the effectiveness and comfort of orthodontic treatment. In contrast, other choices refer to different components of the orthodontic system: brackets are the parts bonded to teeth that hold the arch wire, adhesives are used to bond the brackets to the teeth, and retainers are devices used after braces have been removed to maintain teeth alignment.