Table 1 Characteristics of each scanner
| Color | Scanning principle | Powder | STL export | |
|---|---|---|---|---|
| TDS | Blue light | Active wave front sampling | Yes | After post processing |
| TR3 | White light | Confocal | No | Direct |
| KA | White light | Triangulation | Yes | Direct |
| IH | Blue light | Triangulation | Yes | Direct |