A removable appliance is just what it sounds like; an orthodontic brace that can be taken out of the mouth. It is basically a single piece of coated wire that can be placed over your teeth, ti does not involve brackets
Children who suck their thumb, fingers or pacifier can develop problems with the roof of their mouth and how their teeth come together. Most children stop between ages 2 and Thumb sucking should stop before the child's permanent teeth start coming in.
When the Orthodontic Treatment or braces treatment is over, the orthodontist recommends the wearing of retainers. Wearing retainers after braces is very important for the success of braces / Orthodontic treatment.