Large and convex incisors may be due to congenital developmental problems or severe periodontitis, which mainly requires orthodontic treatment, periodontal treatment and restorative treatment. Large and convex incisors need to be differentiated between congenital development or scalloped displacement caused by severe periodontitis. If it is a congenital development, orthodontic treatment is mainly recommended to align the teeth. If the amount of protrusion is not large, restorative reshaping treatment can also be considered. If the scalloping is caused by severe periodontitis, periodontal treatment should be performed first, followed by orthodontic or restorative treatment. There may be other reasons for large and bulging incisors, so it is recommended to go to the hospital in time, complete the examination to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.