Dental protrusion may be maxillary protrusion or both maxillary and mandibular protrusion, which can be corrected by orthodontic treatment, including extraction of orthodontic teeth, retraction of protruding teeth, alignment and leveling, and establishment of good occlusal contact relationship, as follows. Orthodontic treatment for maxillary protrusion or both maxillary and mandibular protrusion first requires the removal of orthodontic teeth, usually choosing four first premolars or four second premolars, to provide enough space for the teeth to be retracted. Once the anterior teeth are retracted, the teeth are aligned and leveled, and a good and stable occlusal contact is established. Options include labial fixed orthodontics, lingual fixed orthodontics, and invisible removable orthodontics. It is recommended to visit a regular medical institution to receive professional treatment.