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Mastication-enhancing protrusion

  • US 4,626,215 A
  • Filed: 08/12/1985
  • Issued: 12/02/1986
  • Est. Priority Date: 08/12/1985
  • Status: Expired due to Fees
First Claim
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1. In combination with upper and lower dentures where the upper denture has an upper multi-cusp posterior tooth body simulating an actual tooth and made of hardened denture-forming material and the lower denture has a lower multi-cusp posterior tooth body simulating a natural tooth mating with the tooth body of the upper denture and made of denture material, the improvement comprising:

  • an upper occlusal surface element anchored in the posterior tooth body of the upper denture;

    a lower occlusal surface element anchored in the posterior tooth body of the lower denture;

    the upper and the lower occlusal surface elements each having a composition of greater wear resistance than the denture material and each having hemispherical protrusions limited to paired protrusions that protrude from the tooth body in which the element is anchored, the protrusions of a pair of protrusions being aligned in a direction extending from the buccal to the opposite side of a tooth body; and

    the protrusions of said upper and lower occlusal surface elements being arranged to simulate naturally occurring cusps in the respective tooth bodies and providing point-contact mastication surfaces.

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