| remove stain | 0.81 |
| remove plaque | 0.46 |
| polish tooth | 0.44 |
| leave finer scratch mar… | 0.33 |
| become less effective | 0.16 |
| damage denture | 0.16 |
| right | 0.24 |
| used in toothpaste | 0.60 |
| brought into contact | 0.25 |
| being placed under runn… | 0.25 |
| attached to the cloth | 0.25 |
| abraded | 0.16 |