| Similarity | Rank | |
|---|---|---|
| areas | 0.641 | 523 |
| crevices | 0.641 | 36235 |
| gaps | 0.606 | 8043 |
| nooks | 0.604 | 42329 |
| under-served | 0.598 | 80496 |
| crannies | 0.596 | 53050 |
| high-traffic | 0.585 | 68767 |
| underserved | 0.576 | 24877 |
| vulnerable | 0.571 | 4501 |
| cavities | 0.568 | 21693 |
| sealants | 0.565 | 52973 |
| out-of-the-way | 0.558 | 75527 |
| at-risk | 0.554 | 24719 |
| strategically | 0.549 | 13390 |
| corners | 0.543 | 6282 |
| unsightly | 0.542 | 24051 |
| well-used | 0.538 | 90295 |
| surfaces | 0.538 | 5969 |
| crevice | 0.538 | 51376 |
| pockets | 0.532 | 6482 |
| pull-out | 0.530 | 67892 |
| wider | 0.529 | 4362 |
| area | 0.529 | 262 |
| medium-size | 0.528 | 73080 |
| disadvantaged | 0.528 | 16152 |