It is very important to wear retainers immediately following your orthodontic treatment. Retainers are meant to retain. They are not meant to correct. If there is mild movement, the retainers will improve the alignment. If more correction is required, there are minor retreatment options available such as Invisalign Express. It is very important to wear your retainers indefinitely if you want to keep them where you finished your orthodontic treatment. If you don’t want your teeth straight anymore then stop wearing your retainers!