The second kind of machinery, Ryerson liquid bone carving is not bone powder, but bioactive glass material. After injection, the nose will be raised and the back of the nose will be straighter. Moreover, the composition of Ryerson liquid bone carving material is about 70μm, and the particles are very small, which can be well integrated with tissues, but will not be absorbed quickly, lasting about 65,438+0-3 years, and can stimulate collagen regeneration after injection, thus