Del Corso Marco, Abà Giancarlo, Vazquez Lydia, Dargaud Jacques, Dohan Ehrenfest David M
Department of Periodontology, Turin University, Turin, Italy.
Clin Implant Dent Relat Res. 2009 Sep;11(3):214-21. doi: 10.1111/j.1708-8208.2008.00106.x. Epub 2008 Jul 23.
Manufacturing complex prosthetic framework on osseointegrated implants requires precision at every step of execution. The purpose of this study was to verify the possibility of applying the technology of image acquisition to determine the spatial position of osseointegrated implants.
An optical three-dimensional scanning technique was employed: its measurement systematic error (bias) was calculated by comparing the results with the detection on a coordinates measuring machine. Measurements were carried out on master casts by doing an in vitro simulation of intraoral conditions.
This study showed that the bias error value of the three-dimensional optical acquiring system was situated between 14 and 21 microm.
As far as the accuracy is concerned, it seems possible to use the three-dimensional image acquisition technology as a valid alternative to traditional impression-making procedures. However, the bias levels obtained in this in vitro study will have to be confirmed in a clinical trial.
在骨整合种植体上制造复杂的修复体框架需要在执行的每个步骤都保持精确。本研究的目的是验证应用图像采集技术确定骨整合种植体空间位置的可能性。
采用光学三维扫描技术：通过将结果与坐标测量机上的检测结果进行比较来计算其测量系统误差（偏差）。通过在体外模拟口腔内条件，在主模型上进行测量。
本研究表明，三维光学采集系统的偏差误差值在14至21微米之间。
就准确性而言，似乎可以将三维图像采集技术作为传统印模制作程序的有效替代方法。然而，在本体外研究中获得的偏差水平必须在临床试验中得到证实。
