Silicone material has the advantages of being relatively stable and easy to carve and implant, but it can easily skew due to technical reasons.

The reasons why the implant is skewed are: first, the cavity of the implant is not symmetrical enough when it is peeled off, and the cavity is deviated and it is naturally easy to deflect when the prosthesis is inserted. Second, the cavity is too wide, making it difficult to fix the implant and it is easy to move in any direction.