The paper aims to analyze the InfiniteFocus system for the capability to measure macrogeometry of tooth models manufactured using two material extrusion techniques, i.e. MEM and FFF, and analyze the accuracy of manufacturing the said models. To achieve the goals it was needed to carry out two studies. The first one focused on estimating the measurement error of the microscope in the course of digitalizing geometry with the use of a rotary table. The research involved samples of cylindrical and spherical geometries. In the result further measurements of tooth model in the second stage were decided to be performed using vertical resolution 10 µm and overlap 70 %. For these settings, the absolute values of the mean measurement error for the MEM and FFF samples were about 0.01 mm. From 95 % to 98 % of points measured for all the tooth models were contained in the assumed tolerance range of ±0.25 mm for dental models.

本文旨在分析InfiniteFocus系统，以测量使用两种材料挤压技术（即MEM和FFF）制造的牙齿模型的宏观几何形状的能力，并分析制造所述模型的准确性。为了实现目标，需要进行两项研究。第一个重点是在使用转盘将几何数字化的过程中估计显微镜的测量误差。该研究涉及圆柱和球形几何形状的样本。结果，决定使用垂直分辨率10 µm和重叠70％进行第二阶段牙齿模型的进一步测量。对于这些设置，MEM和FFF样品的平均测量误差的绝对值约为0.01 mm。