Dental implant will have some risk, because dental implant a kind of traumatic medical technology, through the clinical operation of the implant implanted in the body, and later restoration, and the level of technology has a lot to do with. Some post-implant complications may occur in the clinic, such as bleeding during surgery, accidental swallowing and aspiration, which are more serious in older patients or patients with more sensitive throat. Unskilled technical operation during implant placement may injure neighboring teeth and hit the inferior alveolar nerve, which may trigger numbness of the lips. There is a maxillary sinus in the upper jaw, and the implant may go into the maxillary sinus if it is poorly operated. Post-operative complications can be infections, which can be easily triggered by poor sterilization during the operation, poor patient maintenance after the operation, failure to take oral antibiotics as prescribed by the doctor or poor oral hygiene. Then there is wound dehiscence, and even some patients who are scarred are prone to scar spasms, leading to poor local shape. Everything has a certain risk, but before the surgery, it is very necessary to choose qualified hospitals and qualified doctors for implantation, which can reduce surgical complications and ensure the safety of dental implant patients and stable results. Therefore, pre-surgical preparation, examination, evaluation and treatment plan development are very important.