Huh? Why not use silicone? The commonly used materials for rhinoplasty are silica gel and swelling, which have been injected. Now ~ ~ artificial bone powder is no longer used. It has not been proved to be toxic yet, but its poor shaping is not good for the beauty of the nose tip, and its bad shape can not be thoroughly cleaned ~ It is safer to use silica gel ~ The doctor should make it clear to you before doing this. This is a matter of material properties, not price ~ ~