HOSA Dental Terminology Practice

What does an arch wire do in orthodontics?

1. Provides support for tooth enamel

2. Holds the molar in place

3. Guides teeth in movement

4. Measures tooth length

The correct answer is: Guides teeth in movement

An arch wire plays a crucial role in orthodontics by serving as the main component that guides the movement of teeth. Attached to brackets that are bonded to the teeth, the arch wire exerts forces that encourage the teeth to move into their desired positions over time. This movement leads to proper alignment and improves overall dental aesthetics and function. Rather than supporting enamel or measuring tooth length, the arch wire specifically focuses on orchestrating the alignment process, making it essential for effective orthodontic treatment.