Objective To discuss the value of tooth extraction site preservation technology in clinical oral implantology. Methods A total of 100 patients with tooth defects admitted to our hospital from January 2021 to December 2023 were selected as the research objects. They were divided into control group and observation group by random number table method, with 50 patients in each group. The control group was treated with conventional minimally invasive tooth extraction technology, and the observation group was treated with tooth extraction site preser vation technology. The repair effect, periodontal index, alveolar bone index, aesthetic effect and satisfaction were compared between the two groups. Results The excellent and good rate of repair in the observation group was 98.00%, which was higher than 86.00% in the control group (P <0.05). The values of mPLI, mBI and PD in the observation group were lower than those in the control group at 3 months after repair (P <0.05). After treatment, the alveolar bone height, alveolar bone width and bone mineral density in the observation group were higher than those in the control group (P <0.05). The aesthetic effect scores of each dimension in the observation group were higher than those in the control group (P <0.05). The satisfaction rate of the observation group was 100.00%, which was higher than 92.00% of the control group (P <0.05). Conclusion The application of tooth extraction site preservation in clinical oral implantology can effectively improve the alveolar bone and soft tissue around the implant, improve the overall efficacy and aesthetics, and improve patient satisfaction, which is worthy o f clinical application.