Objective To analyze the effect of digital technology-based oral implant restoration on implant accuracy in patients with dentition defect. Methods A total of 60 patients with dentition defect admitted to our hospital from January 2022 to May 2023 were selected as the research subjects. According to the random number table method, they were divided into the control group and the observation group, with 30 patients in each group. The control group was treated with traditional implant restoration, and the observation group was treated with digital technology-based oral implant restoration (CBCT scanning+intraoral scanning+CAD/CAM restoration fabrication). The restoration fftness, implant accuracy, implant prognosis, complications and satisfaction were compared between the two groups. Results The excellent and good rate of restoration fftness in the observation group (95.24%) was higher than that in the control group (75.00%) (P<0.05). The three-dimensional error and angular deviation of implant placement in the observation group were smaller than those in the control group (P<0.05). The implant survival rate in the observation group was higher than that in the control group, and the marginal bone resorption was less than that in the control group (P<0.05). The incidence of postoperative complications in the observation group (3.33%) was lower than that in the control group (20.00%) (P<0.05). The satisfaction score in the observation group was higher than that in the control group (P<0.05). Conclusion Digital technology-based oral implant restoration can effectively improve implant accuracy and restoration fftness of patients with dentition defect, improve implant prognosis, enhance patient satisfaction, and reduce the incidence of complications, which is worthy of clinical application.