Ear cartilage is soft and contains a lot of elastic fibers, which can be bent at will and will not break when twisted hard. Ear cartilage is very tough. Similarly, the auricular cartilage is too soft to play a strong supporting role, and is generally used to lengthen the tip of the nose or columella, or to deal with the problem of depression of the nasal floor. Therefore, if auricular cartilage is used for rhinoplasty, the position of nasal dorsum still needs to rely on prosthetic materials such as silicone.
Costal cartilage is an active substance with high survival rate and extremely low absorption rate, and generally there will be no rejection. As cartilage tissue, it not only has a certain hardness, but also is very flexible, so it is naturally a good rhinoplasty material in rhinoplasty surgery. Doctors usually carve costal cartilage into the desired shape, which can play a strong supporting role. Costal cartilage is hard and easy to carve, which can be used to build the back and tip of nose.
To sum up, ear cartilage is thin, soft and elastic. It is more used to pad the tip of the nose to make it feel more natural and soft, while costal cartilage is hard and large, which can be used to make the tip of double eyelids or pad the nose. Those with poor basic conditions can be considered, and those with good basic conditions can be considered.