Gums can be corrected by orthodontic treatment, or surgical treatment may be required if the situation is serious. 1. Smiling with gums is usually caused by the developmental disorder of the jawbone. Patients can correct the situation of smiling with gums by pressing the teeth of the upper jaw into the upper jawbone through orthodontics, and at the same time strengthening the training of the lip muscles. 2. However, if the patient has obvious symptoms of crown overshortening or maxillary protrusion, it is generally difficult to achieve significant improvement by simply relying on orthodontic methods. Therefore, surgical corrective treatment is required, such as crown lengthening surgery, orthodontic orthognathic combined treatment. Therefore, if you want to correct the symptom of gums showing when you smile, you should go to a regular hospital and choose a suitable way of treatment under the guidance of a professional doctor.