Abstract: Objective： To study the clinical effect of dental implant restoration immediately after maxillary ante- rior extraction. Methods： This study was conducted from January to December 2017 and included 150 pa- tients who underwent single-tooth extraction and implantation of the maxillary front in our hospital during this period. They were randomly divided into control group and observation group. The control group was given conventional tooth extraction and implant treatment. The observation group was given immediate dental implant treatment after tooth extraction. On the day after surgery, 3 months after surgery, and 6 months after surgery, gingival thickness, cervical bone resorption, bone density, and implant nipple index were graded. Red aesthetic index(PES) score and planting were performed 6 months after surgery. Body edge bone resorption(MBL) score. Results： At 3 months and 6 months after operation, the thickness of gin- giva decreased gradually, and the bone resorption and bone density of the neck increased gradually, com- pared with the day after surgery, P<0.05. At 3 months after operation, the bone resorption and bone miner- al density of the observation group were higher than those of the control group, P<0.05. At 6 months after operation, the bone resorption and bone mineral density of the observation group were higher than those of the control group, and the thickness of the gingiva was smaller than that of the control group, P<0.05. At 3 months and 6 months after operation, the nipple index of the two groups showed a gradual decrease, and the nipple index of the observation group was better than that of the control group, P<0.05. At 6 months af-ter operation, the PES score and MBL score of the observation group were higher than the control group, P <0.05. Conclusion： The clinical effect of the restoration of the implant after the extraction of the maxil- lary anterior teeth is obvious. The postoperative recovery is good and the appearance can be improved.

Key words: maxillary anterior teeth, dental implant, immediate implantation