| for several hours | 9 | temporal |
| each day | 6 | temporal |
| for a specific length of time | 6 | temporal |
| patient → wear → tray | 20 |
| patient → wear → the tray | 7 |
| negative | neutral | positive |
| 0.080 | 0.862 | 0.058 |
| Raw frequency | 27 |
| Normalized frequency | 0.423 |
| Modifier score | 0.833 |
| Perplexity | 478.153 |