The Ness Visual Dictionary of Dental Technology
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| Term | post dam |
| Variations | palatal seal, post-palatal seal, posterior palatal seal |
| See also | post dam line |
| Definition | A ridge on the tissue side along the posterior border of the upper denture used to create an air-tight seal with the soft palate to hold the denture in place. |
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post dam
Term of the day: bar clasp
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