Removable retainers are orthodontic devices used to maintain the position of teeth after braces or other orthodontic treatments. They are typically made of clear plastic or a combination of plastic and metal, allowing them to be discreet while effectively holding teeth in place. Patients usually wear them for a specified period, especially during the night. These retainers are custom-made to fit an individual's mouth and can be easily taken out for eating, brushing, and flossing. Regular use helps prevent teeth from shifting back to their original positions, ensuring the long-term success of orthodontic treatment.