Wearing braces is not fun. It is painful and annoying and the day you get rid of them is like freeing your teeth from jail. You are finally free and you never have to worry about crooked teeth ever again! Or do you?
When your orthodontist removes your braces, your teeth are perfectly straight but also very vulnerable. The periodontal fibers are stretched out and when they contract again there is a high risk of relapse – meaning you may just have gone through braces for nothing.
To prevent this from happening, the teeth must be retained in position for several months or years, long enough to help stabilize their correction. This can be achieved with a retainer.