2022 Volume 35 Issue 4 Pages 283-290
In recent years, simulation software, which is obtained by digital matching of optical impression data of the oral cavity or plaster models with CBCT data, has been widely used for implant placement. In addition, the digital data of the implants in the simulation software is used to plan the dimensions and placement positions of the implants, enabling accurate placement.
However, overconfidence in the accuracy of these digital data compared to the actual values may cause problems for safe and reliable implant treatment.
We examined the dimensional reproducibility of multiple CT (CBCT, MDCT), scanners, and simulation software. As a result, it was found that the various digital data were larger or smaller compared to the actual values. The results also suggest that distortions occur in the matching digital data due to differences in the respective dimensional change rates.
Therefore, for safe and reliable treatment, it is important to pursue not only the accuracy of digital data compared to the actual values, but also the consistency of these data. In addition, to avoid problems it is important to be familiar with the limitations of digital data, in other words, to take into account experience of analog treatment.
