Abstract: Objective: To explore and analyze the clinical efficacy and safety of minimally invasive implanta-tion in elderly patients with dentition defects. Methods: 58 elderly patients with dental defect admitted from April 2013 to April 2018 were selected as the subjects in this study. They were divided into 29 cases in each group by random numerical tables. Among them, the experimental group performed minimally in-vasive planting techniques, and the control group performed conventional dental implants. Results: The effective rate of treatment was significantly better than that of control group（P<0.05）. The time of opera-tion and application of antibiotics were shorter in the experimental group than in the control group(P< 0.05). The incidence of complications in the test group was significantly better than that in the control group（P<0.05）. Patients in the test group were significantly more satisfied than those in the control group （P<0.05）. Conclusion: Minimally invasive implantation for elderly patients with dentition defects not only has a good therapeutic effect, but also can shorten the operation time, can also reduce the occurrence of complications, can improve the satisfaction of treatment, and has a better clinical efficacy and safety, worthy of promotion and application.

Key words: old age, dental defects, minimally invasive planting techniques