Pre-implantation considerations are divided into two aspects. Firstly, after the patient comes to the hospital, after the pre-examination and preparation, the patient is communicated with the choice of implant surgery for the treatment of tooth loss or missing teeth, followed by the implant surgery. Secondly, the pre-surgical preparation should be done in addition to the safety assessment of the patient’s systemic disease, and also the evaluation of the difficulty of the implant surgery. For example, if there is sufficient bone volume, it is a very simple surgical procedure, but in patients with extreme alveolar bone deficiency, bone block grafting or bone powder is required to increase the alveolar bone volume, the procedure changes from simple to moderate or high difficulty, and the procedure should be evaluated. The patient’s preparation before surgery includes: 1. The hospital will sign an informed consent form with the patient to fill out the entire process of dental implantation, the implant system, restorative materials and costs, as well as the systemic disease; 2. Patients must be truthful about the systemic diseases they suffer from and cannot hide anything, especially in the elderly. The development of medicine depends on the accumulation of clinical data. Before or during the implant surgery, photos and models of the oral condition will be recorded. After all the preparations are done, the implant can be performed in the operating room. Before the surgery, the operating room nurse should prepare the instruments and materials fully. After the three-way preparation is done, the dental implant placement can be carried out very safely and reliably and the implant surgery can be performed.