The total loss of teeth can be implanted prosthesis, but also consider the patient’s economic conditions, physical conditions, there is no underlying disease, such as hypertension, diabetes, whether smoking, etc.. For example, diabetic patients, blood sugar has an impact on osseointegration and wound healing, and not quitting smoking also affects osseointegration, and after ruling out contraindications, CBCT examination should be reconsidered. In addition, it is necessary to combine the bone condition, bone width and height, to determine whether to carry out bone implantation. The patient needs to be informed of the risks of implantation, and informed consent must be obtained before treatment is carried out. Implants are not permanent and need to be maintained by the doctor and the patient. Full-mouth implants, such as six implants underneath, are established in a similar way to full-mouth implants, and are fixed with screws, which not only restores the soft and hard tissue defects, but also allows the patient to maintain aesthetics, and to maintain speech and chewing functions.