The correct term for incisors is mesial incisors, and a small tooth growing between the mesial incisors is called a supernumerary tooth, and the correction method is usually to close the gap between the mesial incisors through orthodontics after the supernumerary tooth has been extracted, as follows. The presence of supernumerary teeth between the mesial incisors affects the aesthetics and can often cause food impaction and occlusal trauma and other adverse effects, and should be extracted as soon as possible. After extraction, there may be gaps between the mesial incisors, which can be closed by orthodontic treatment to align the teeth. The orthodontic options available are labial fixed orthodontics, lingual fixed orthodontics, and invisible orthodontics. For the same disease, patients have different conditions and different treatment options. It is recommended to visit a hospital for regular targeted treatment.