How much is the correction of upper tooth protrusion?
Protrusion is the deep coverage of teeth in stomatology. The upper front teeth are slightly forward and the alveolar teeth are closed. When the teeth protrude, the upper front teeth can't touch the lower front teeth, which is often manifested as buckteeth.
Movable appliance: it is generally used to correct simple mistakes and deformities of deciduous teeth and dentition, or to correct them with fixed appliances. The patient can take it down by himself.
Fixed chair orthosis: the most commonly used orthosis. The patient can't take it off himself.
Functional chair appliance: it is mainly used for children who are still at the peak of growth and development during or just after tooth replacement. The functional appliance can correct skeletal malocclusion and deformity.