First, a through incision was made at the lateral edge of nostril, which was separated from the surface of upper alveolar bone, and then a flying swallow prosthesis was placed under the nasal columella. Second, make two small openings in the mouth, separate the nasal base, then put the triangular prosthesis in and lift the alar base.

① Injection filling: filling with autologous fat or hyaluronic acid.

② Prosthesis implantation: expansion body and silica gel.

③ Autologous cartilage implantation: auricular cartilage, nasal septum cartilage and costal cartilage.

0 1 injection filling nasal base

Injection filling is to inject autologous fat or hyaluronic acid into the depression of the nasal floor, and then shape it by a doctor to improve the depression of the nasal floor. This method is only suitable for people with good nasal floor and only slight depression, and the effect can only last for about one year.

Prosthesis implantation fills the nasal base.

Prosthesis implantation is to fill the nasal floor with silica gel or swelling, which can obviously improve the moderate nasal floor depression and has a lasting effect. Theoretically, it will take about 10- 15 years to replace the prosthesis.

Autologous auricular cartilage fills the nasal floor.

The fusion of prosthesis and nasal tissue is nothing more than complete fusion, so it is generally recommended to fill the nasal floor with autologous auricular cartilage. Autologous auricular cartilage can be fused with nasal tissue, which conforms to the anatomical structure of human face, and the effect is natural and stable, without affecting facial expression and causing the risk of prosthesis displacement.