ABSTRACT
【Objective】 To evaluate the clinical effect of 3D printing technology in autogenous tooth transplantation for tooth loss. 【Methods】 From September 2017 to August 2021, 169 patients (176 teeth) were selected and analyzed regarding age, gender, recipient site, positioning of the donor tooth, transplantation time, and long-term follow-up. 【Results】 A total of 176 autogenous tooth transplants were completed, consisting of 133 cases of traditional autogenous tooth transplantation and 43 cases of autogenous tooth transplantation with 3D printing technology. The donor tooth separation time for autogenous tooth transplantation with 3D printing technology was significantly less than that for traditional autogenous tooth transplantation (P<0.000 1). A total of nine teeth were removed 3 months after the operation due to loosening(autogenous tooth transplantation failure), among which seven failed in traditional tooth transplantation and two failed in autologous tooth transplantation with 3D printing technology. The success rate of traditional tooth transplantation was 77% and the retention rate was 94.7%. The success rate of tooth transplantation with 3D printing technology was 88%, and the retention rate was 95.3%. 【Conclusion】 3D printed tooth donor model can greatly shorten the time of tooth donor, reduce the damage to the periodontal membrane cells of the transplanted teeth, and improve the success rate of tooth transplantation. It is worthy of broad promotion.