| in the plaque’s ph level | 9 | other |
| calcium → be → reduced | 7 |
| calcium → reduce → decrease | 4 |
| calcium → prevent → decrease | 4 |
| calcium → be → decreased | 3 |
| negative | neutral | positive |
| 0.196 | 0.680 | 0.124 |
| Raw frequency | 18 |
| Normalized frequency | 0.295 |
| Modifier score | 0.500 |
| Perplexity | 31.146 |