Gum recession usually recovers after scaling, but when combined with periodontitis, it is difficult to restore gum recession with scaling alone. Gum recession is caused by food debris and plaque forming calculus, which exists between the gums and teeth. If there is only simple gingivitis, no periodontitis, and the gum recession is not severe, the gum recession can be restored to some extent through scaling and standardized treatment. If the gum recession is mainly caused by periodontal disease, through scaling, only the bacteria and calculus above the gingival sulcus can be washed away, and the bacteria and calculus below the gingival sulcus will not be cleaned up, so the progressive condition of gum recession will not be restored after scaling. In this case, standard periodontal treatments such as subgingival scraping and root planing can be used to treat gum recession. In your daily life, you must pay attention to oral hygiene, and go to the hospital in time when your teeth are uncomfortable, and follow the doctor’s instructions for treatment.