Objective To explore the effect of digital technology combined with modelling implant guide plate restoration on implant precision in patients with dentition defect. Methods A total of 80 patients with dentition defect admitted to the Second Affiliated Hospital of Naval Medical University from March 2022 to March 2024 were selected as the research subjects. According to different oral implant restoration methods, they were divided into the control group and the observation group, with 40 patients in each group. The control group was treated with conventional oral implant restoration, and the observation group was treated with digital technology combined with modelling implant guide plate oral implant restoration. The implant precision, quality of life and occlusal force were compared between the two groups. Results The angle deviation, top deviation, depth deviation and root deviation of the oral implants in the observation group were all lower than those in the control group (P <0.05). The scores and total scores of OHIP-14 in the observation group were lower than those in the control group after treatment (P <0.05). The occlusal force in the observation group was greater than that in the control group (P <0.05). Conclusion The application of digital technology combined with modelling implant guide plate restoration in the treatment of oral implant restoration can improve the precision of oral implant position and occlusal force, and enhance patients' quality of life.