Abstract: Objective： To investigate the effect of tooth extraction point preservation on the aesthetic effect of dental implant patients. Methods： From January 2017 to July 2018, 38 patients with dental implant were randomly divided into two groups: the control group was treated with conventional dental implant after extraction of dental teeth, and the patients in the control group were treated with conventional dental implants after extraction, and the patients in the control group were randomly divided into two groups. Results： Showed that the width, height and density of alveolar bone in the study group were higher than those in the control group, and the lip-palate bone resorption and vertical bone resorption were lower than those in the control group. The degree of beauty was higher than that of the control group(P<0.05). Conclusion： After extraction of teeth, there is a statistical difference between the two groups. Site preservation technology can effectively improve alveolar bone width, height, density, reduce lip and palate bone absorption and vertical bone absorption, provide good conditions for oral implant, and improve the aesthetic effect of patients, which has a certain clinical practical value. It is worth popularizing.

Key words: extraction site, preservation technology, dental implant, aesthetics, alveolar bone