Mantlebo (porous polyethylene) chin augmentation is achieved by making a tiny incision inside the mouth and surgically implanting a jaw implant under the periosteum and between the bones of the lower jaw chin. It has good histocompatibility, low infection rate, no rejection reaction, and avoids abnormal chin function, soft tissue deformation and fiber contracture. However, if not properly operated, it can cause the following risks: 1, postoperative infection: if the operation is not strict or improper postoperative care, it can lead to chin swelling, redness and other infections; 2, difficulty in removing the prosthesis: after Mantelbo chin augmentation, the prosthesis adheres more closely to the surrounding tissues, and once the operation fails, it is more difficult to remove it after the operation, which is more likely to cause trauma and then lead to facial nerve damage; 3, improper location of the prosthesis. It can be manifested as the prosthesis leaving the midline, shifting to the left, right or up and down. If the prosthesis is shifted to the bottom, it can make the lower lip folds disappear. If the prosthesis is displaced, the prosthesis should be re-implanted and fixed properly. To sum up, if you want to choose Mentor chin augmentation, it is recommended to go to a regular institution and choose a professional doctor for the surgery, and you need to fully communicate with the doctor before the surgery and follow the doctor’s instructions for good care after the surgery.