The era of brutal and rough tooth extraction will finally pass, and with it comes the development of painless and minimally invasive techniques. With the improvement of people’s demand for quality of life and aesthetics, the technique of extraction site preservation has also come into being. After tooth extraction, due to the self-remodeling and disuse atrophy of bone, the alveolar bone resorption is more serious, the reduction of bone height and width is more obvious, and the gingival atrophy often affects the effect of implant restoration in the future, for example, the failure rate of implantation increases, the aesthetic effect of restoration is not satisfactory, etc. In this case, it is necessary to implement site-preservation techniques after tooth extraction to increase bone volume in order to improve the chances of success of the implant and the aesthetic effect of the restoration. It is believed that along with the progress of the times, the development of medical technology will bring more and more benefits to people.