If the bone supporting your teeth has been destroyed as a result of gum recession, a procedure to regenerate lost bone and tissue may be recommended. Your dentist will fold back the gum tissue and remove the bacteria. A regenerative material, such as a membrane, graft tissue, or tissue-stimulating protein, will then be applied to encourage your body to naturally regenerate bone and tissue in that area. After the regenerative material is put in place, the gum tissue is secured over the root of the tooth or teeth.