Tooth protrusion is the upper front teeth protruding out of the mouth, the mouth and lips cannot protect the teeth protruding out of the mouth, and the teeth cannot be moistened by saliva, and are prone to caries in dry environment, the main problem is that caries will cause dentin hypersensitivity, pulpitis symptoms, and periodontal changes. Patients with protruding teeth are recommended to visit a dental hospital to change their protrusion through orthodontic or restorative treatment. If it is a simple dental protrusion of upper front teeth, orthodontic repair is recommended; like bone protrusion of teeth, orthognathic treatment is recommended.