Objective To investigate the effect of modified adhesive retention in oral implant restoration. Methods A total of 90 patients who underwent oral implant restoration in Guangzhou Jibo Stomatological Hospital from January to December 2023 were selected as the research objects. According to the random number table method, they were divided into control group and observation group, with 45 patients in each group. The control group was treated with traditional adhesive retention, and the observation group was treated with modified adhesive retention. The repair effect, alveolar bone height, alveolar bone thickness, bone resorption, periodontal status and oral function recovery were compared between the two groups. Results The total effective rate of repair in the observation group was 95.56%, which was higher than 82.22% in the control group (P <0.05). After treatment, the alveolar bone height, alveolar bone thickness and bone absorption in the observation group were better than those in the control group (P <0.05). After treatment, the plaque index and gingival sulcus bleeding index in the observation group were lower than those in the control group (P <0.05). After treatment, the scores of aesthetic function, language function, retention function and chewing function in the observation group were higher than those in the control group (P <0.05). Conclusion Modified adhesive retention is effective in oral implant restoration, which can improve the total effective rate of restoration, enhance the stability of implants, effectively improve the periodontal status of patients, and help to promote the recovery of oral function. It is worthy of clinical application.