基于3D打印技术的种植手机引导 导板的临床应用

目的:利用CBCT、3D打印技术等设计制作新型口腔种植导板和种植手机引导装置,应用于临床并对其进行精度评价。方法:利用Mimics、Simplant等软件设计制造种植外科导板,分为套筒引导(A组)和种植手机引导(B组)行种植手术。分析虚拟与实际植体的偏差,比较2组的精确度是否有统计学差异。结果:15例患者的92枚植体,A组44枚和B组48枚,测量虚拟与实际植体在颈部、顶部、深度、角度偏离值:(0.82±0.47) mm,(0.97±0.52) mm,(0.81±0.42) mm,(7.89±4.24)°。两独立样本t检验,双侧α=0.05,得到A组和B组差异无统计学意义,不认为两者的偏离值的总体均数不相等。结论:套筒引导和种植手机引导精确度基本无差别,两者的联合应用具有较高的精确性等优点。

Clinical Application of Handpiece Surgical Guide Based on 3D Printing Technology.

Objective: To design a handpiece surgical guide and to evaluate its clinical effect and accuracy using CBCT technology and 3D printing. Methods: We designed and manufactured handpiece surgical guide with Mimics, Simplant and other softwares. The patients were carried surgery and divided into sleeve guide group (group A) and handpiece guide group (group B). we analyzed the deviation (entry, apical, vertical, and axis)between virtual and actual implants on preoperative and postoperative CBCT data. Results: Ninety-two implants were inserted into 15 patients, including 44 implants for group A and 48 implants for group B. The deviations of entry, apical, vertical, and axis were (0.82 ± 0.47) mm, (0.97 ± 0.47) mm, (0.81 ± 0.43) mm, and (7.89 ± 4.26)°, respectively. According to the analysis of variance, the statistical test found no significant difference in apical, vertical and axis between the two groups. Conclusion: There is no significant difference in accuracy between sleeve guide and handpiece guide. A combination of sleeve guide and handpiece guide is advocated.