Deep cover (deep overjaw) can be dental or bony, and dental requires orthodontic correction, usually in the tens of thousands of dollars. Bony ones require a combination of orthodontic orthognathic surgery, which costs more than orthodontics alone. Dental anterior deep overjet is mainly due to abnormalities in the position or number of maxillary and mandibular anterior teeth, such as labial misalignment of maxillary anterior teeth and lingual misalignment of mandibular anterior teeth, etc. It requires orthodontic treatment, generally costing tens of thousands of dollars. Orthodontic treatment is required, usually in the tens of thousands of dollars. Invisalign treatment generally costs more than bracket orthodontic treatment. Bony deep overjet is a severe maxillary protrusion and mandibular retrusion deformity that requires a combination of orthodontic and orthognathic surgery. Orthognathic surgery requires hospitalization and treatment under general anesthesia, so the cost is higher than orthodontics alone. Consultation with your doctor is recommended.