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Assessment of 3D printing needle size and printing accuracy (%) of matrices.
| Needle Gauge (G) | Needle Inner Diameter (mm) | Optimal Printing Pressure (kPa) | Printing Accuracy (%) |
|---|---|---|---|
| 20 | 0.61 | 100 | 73.3 |
| 21 | 0.51 | 300 | 76.7 |
| 22 | 0.41 | 800 | 87.9 |
| 25 | 0.25 | 1400 | 95.6 |
| 27 | 0.20 | 2000 | 82.3 |
