You will find removable and glued retainers. Preset retainers are also known as bonded retainers and are attached on the back of teeth with dental bonding. These are definitely desired frequently for young people who are unlikely to keep up with their retainer with no it remaining fixed into location. https://orthodontic-products48912.ampblogs.com/the-2-minute-rule-for-orthodontic-products-in-uk-69894101