Gum recession exposing the root of the tooth can usually be remedied by a filling after caries removal, after root canal treatment, or by gingival flap repair. Gum recession exposing the root of the tooth generally exists in the case of caries, if in the process of de-caries, sensitivity occurs, diagnostic treatment should be carried out, after two to three weeks of observation and de-caries again, if the tooth is no longer sensitive, it can be cushioned and then filled. If there is still sensitivity or pain, root canal treatment should be carried out first, followed by crown restoration. Medium and deep caries are treated differently according to the sensitivity of the tooth at the time of decavitation, if it is more sensitive, diagnostic treatment or filling treatment should be carried out, and if the decavitation process is painful and uncomfortable, root canal treatment should be carried out, and crown restoration treatment should be carried out after the treatment. If the gingival recession affects the aesthetics, gingival flap repair can also be performed. Gum recession reveals the root of the tooth, should be timely to the stomatology clinic, under the doctor’s diagnosis with the treatment, usually to eat less cold and hard, sweet food, pay attention to oral hygiene.