| infiltration AND proximal | 5 |
| infiltration AND approximal | 0 |
| infiltrate AND proximal | 1 |
| infiltrate AND approximal | 0 |
| seal AND proximal | 0 |
| seal AND approximal | 0 |
| sealant AND proximal | 0 |
| sealant AND approximal | 0 |
| sealing AND proximal | 0 |
| sealing AND approximal | 0 |
| Total | 6 |
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