A. unfortunately, once the gum have receeded, there is no way in bringing it back. To prevent them from getting any worse, you need to see your dentist and hygienist regularly, maintain excellent home care routine- including flossing- but also to use the correct brushing technique, remembering not to scrub the gums too much. Use gentle, circular motions instaed. Hope this has helped. Over time, your teeth may become sensitive. Your dentist will address this situation when it arises.