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seal (sel)

1. An airtight closure. 2. To effect an airtight closure.
border s.the contact of the denture border with the underlying or adjacent tissues to prevent the passage of air or other substances.peripheral s;
palatal s.posterior palatal s
peripheral s.border s
posterior palatal s.the s. at the posterior border of a denture. See also posterior palatal seal area.palatal s., post dam, postdam, postpalatal s;
postpalatal s.posterior palatal s
velopharyngeal s.closure between the oral and nasopharyngeal cavities.


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