Orthodontic Assistant Practice Exam

What is used to tie the archwire onto orthodontic brackets?

1. Elastic bands

2. Ligature wire

3. Orthodontic wax

4. Archwire ligature

The correct answer is: Ligature wire

The use of ligature wire to tie the archwire onto orthodontic brackets is a fundamental practice in orthodontics. Ligature wire is a fine, flexible wire that is wrapped around the orthodontic bracket to secure the archwire in place. This secure attachment is crucial for effective tooth movement, as it allows the archwire to apply consistent pressure to the teeth through the brackets. The wire holds everything together and ensures that the archwire can deliver its intended forces throughout the treatment process. While other materials like elastic bands and archwire ligatures may be used in orthodontic treatments, they serve different purposes. Elastic bands are often used to create specific additional forces for tooth movement or to correct discrepancies in bite alignment. Orthodontic wax is typically used to relieve discomfort caused by appliances rather than for securing archwires. Thus, ligature wire is specifically designed for the task of tying the archwire to the brackets, making it the correct answer in this context.