| reveal mucosal defects | 0.25 |
| filled with precipitate… | 0.16 |
| increase the hardness | 0.16 |
| wear resistance | 0.16 |
| replace some parts of t… | 0.16 |
| metallic compound | 0.25 |
| used to help see abnorm… | 0.41 |
| used as x-ray radiocont… | 0.37 |
| used in paint | 0.32 |
| x-ray opacity | 0.45 |