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US 5,718,584 AGranted
Preformed posterior palatal seal for forming dentures and method
OwnerNelson J. Wonginventor
Life of this patent
Estimating the term…
Abstract
A preformed posterior palatal seal (Preformed PPS) for use in preparation of dentures includes a body preformed of a predetermined anatomically based size and shape of a posterior palatal seal (PPS) for sealing a denture at the "Ah line" of the human palate and adhesive for holding the preformed body to a denture impression prior to forming a mold from which a denture is to be formed.
Claims8
A preformed posterior palatal seal (Preformed PPS) for use in preparation of dentures comprising:
- (a) a body preformed of a predetermined, anatomically based size and shape of a posterior palatal seal (PPS) for sealing a denture and increasing pressure at the "Ah line" of the human palate;
- and
- (b) means for securing said preformed body to a denture impression at an anatomical position corresponding to the "Ah line" prior to forming a mold from which a denture is to be formed.
Dependencies are inferred from the claim text.