3d geomagic capture wrap

Once STL1–4 were imported to reverse engineering geomorphometric software (3D Geomagic Capture Wrap, 3D Systems^©, Rock Hill, SC, USA); a full-arch alignment procedure was conducted. STL1 was considered the reference digital file, and STL2–4 were superimposed on it using the palatal surfaces of the anterior teeth and the occlusal and palatal surfaces of the posterior teeth, with the best fit algorithm. Afterward, the teeth from 15 to 25 of all STL files were segmented (Figure 3a–d) and individually three-dimensionally compared using the alignment of the STL files 2 (Figure 4a), 3 (Figure 4b), and 4 (Figure 4c) with STL1 used as the reference.
The spectrum was set to ±100 μm and the tolerance to ±10 μm (Figure 4d).
Then, a new alignment procedure (re-alignment) was performed. This re-alignment was individually performed from the previously segmented teeth 1.5–2.5 using the intact palatal surface of each tooth as reference to enable the re-alignment. The previously segmented teeth of STL1 were considered the reference and the corresponding segmented teeth of STL2–4 were superimposed, so the 3D position of the teeth of the STL1 was not modified in the process of re-alignment.
After the re-alignment, a 3D comparison was performed with the same spectrum and tolerance values previously described (Figure 5).

Once STL-1–3 digital files were imported to reverse engineering morphometric software (3D Geomagic Capture Wrap, 3D Systems^©, Rock Hill, SC, USA), a full-arch alignment procedure was conducted. The digital files of the anatomically based acrylic resin experimental model (Ref.: MED620, Veroglaze, Munich, Germany) were considered as the reference for alignment, using the best-fit algorithm. Afterwards, the teeth from the STL-1 and STL-2 digital files were segmented (Figure 3A–H) and compared individually in three dimensions using the alignment of the STL digital files (Figure 3I–L).