Orthodontic Assistant Practice Exam

What is the purpose of a positioner in orthodontic treatment?

1. Used for actively moving teeth

2. Worn only during meals

3. Worn after the removal of fixed appliances

4. To maintain the position of the archwire

The correct answer is: Worn after the removal of fixed appliances

The purpose of a positioner in orthodontic treatment primarily focuses on stabilizing and maintaining the positions of the teeth after the removal of fixed appliances, such as braces. Positioners help to ensure that the teeth do not shift back to their original positions after active orthodontic treatment is completed. When fixed appliances are removed, there may be a risk of relapse, and wearing a positioner helps to retain the new alignment that has been achieved through orthodontic treatment. While positioners may assist in minor adjustments to teeth, their main function is not to actively move teeth but rather to serve as a retention method. They are typically worn full-time for a specific duration, especially during the initial phase after braces removal, rather than only during meals. A positioner's design does not relate to maintaining the position of the archwire, as archwires are components of fixed appliances, and positioners operate as separate devices aiding in retention rather than movement.