Gingival atrophy is irreversible, and the correction is that teeth cannot recover gingival atrophy. What we can do now is to stop it from shrinking further. In the future, choose a soft-haired toothbrush and floss your teeth to prevent plaque from adhering. If you want to correct it, it is also necessary to clean the food residue on the braces with a toothbrush. You can have a look at orthodontics, which is good for you.