Abstract:

Objective: To investigate the potential impact of surgical templates manufactured 7 days before the surgery on the accuracy of implants. The findings will serve as a valuable reference for clinical practice. Methods: A total of 104 patients and 164 implants were included in this study, and they were divided into two groups based on the time elapsed since template production：group 1 (≤7 days) and group 2 (>7 days). Subsequently, each group was divided into subgroups based on the different implantation sites in patients. The errors of implant placement were measured accordingly. Statistical analysis was performed using the Mann-Whitney U test. Results: Group 1 included 86 implants, while group 2 included 78 implants. There was a statistically significant difference in apical deviation between the two groups (P<0.05). Additionally, significant increases in apical deviation were found in mandibular cases, distal-extension edentulous cases, continuous edentulous cases, and cases involving anchor pin installation (P<0.05). Conclusion: The analysis of the data suggests that when the time elapsed since template production exceeds seven days, there is an increase in the apical deviation of the implant in cases involving mandibular, distal-extension partial edentulism, and continuous partial edentulism.

Key words: implant accuracy, full-guide template, 3D printing

摘要：

目的：探讨使用静置7 d后的种植导板是否会影响种植手术的精确度，为临床工作提供参考。方法：纳入104例患者，共164颗种植体，依据导板静置的时间将患者分为2组：组1（≤7 d组）和组2（>7 d组）。按照患者种植位点的不同将其分为不同的亚组。测量种植体植入的误差，使用独立样本秩和检验进行统计学分析。结果：组1共纳入86颗种植体，组2共纳入78颗种植体，2组间根部误差差异有统计学意义（P<0.05）。在下颌、游离缺失、连续缺失和添加固位钉的病例中，相比组1，组2的种植体根部误差更大（P<0.05）。结论：在下颌、游离缺失和连续缺失的病例中，使用静置时间超过7 d的种植导板进行手术，会对种植精确度造成不利影响。

关键词: 种植体精确度, 全程导板, 3D打印

CLC Number: 

• R782