| remove plaque | 0.67 |
| do all the work | 0.58 |
| do better job | 0.58 |
| come equipped | 0.43 |
| claimed in claim | 0.39 |
| remove stain | 0.38 |
| come with a 2 year warr… | 0.38 |
| remove bacteria | 0.38 |
| become popular | 0.33 |
| get rid of bad breath | 0.32 |
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| gum recession | 0.25 |
| timer | 0.68 |
| a built | 0.56 |
| pressure sensors | 0.54 |
| head | 0.45 |
| bristle | 0.45 |
| edge | 0.39 |
| replaceable heads | 0.36 |
| helpful | 0.75 |
| effective | 0.56 |
| right | 0.56 |
| better than manual toot… | 0.48 |
| more expensive | 0.46 |
| rechargeable | 0.42 |
| gentle | 0.29 |
| heavy | 0.27 |
| faster | 0.20 |
| old | 0.20 |
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| toothbrush | 0.58 |
| charged | 0.56 |
| created equal | 0.48 |
| invented in 1954 | 0.46 |
| designed for child | 0.45 |
| invented in switzerland | 0.43 |
| recommended by dentist | 0.40 |
| easy to use | 0.39 |
| used to clean gum | 0.25 |
| connected to external p… | 0.25 |