| 释义 | DictionarySeeseal postpalatal seal
 pos·te·ri·or pal·a·tal sealthe seal at the posterior border of a denture.See also: posterior palatal seal area.  Synonym(s): palatal seal, post dam, postdam, postpalatal seal
 post·pal·a·tal seal(pōst-pală-tăl sēl) Slightly raised area on the posterior border of a maxillary removable dental prosthesis that slightly displaces soft tissue so as to facilitate retention of the prosthesis. |