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Artificial posterior tooth for the human teeth

  • US 5,951,289 A
  • Filed: 05/05/1997
  • Issued: 09/14/1999
  • Est. Priority Date: 09/09/1994
  • Status: Expired due to Fees
First Claim
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1. A large and small artificial posterior tooth pair for the human upper and lower jaw, the occlusal surfaces of which comprise at least one buccal cusp and at least one palatal cusp, between which a longitudinal fissure runs in the longitudinal direction of the tooth, where the buccal cusp of the lower jaw posterior tooth engages in the longitudinal fissure of the upper jaw posterior tooth and the palatal protuberance of the upper jaw posterior tooth engages in the longitudinal fissure of the lower jaw posterior tooth, comprising:

  • the longitudinal fissures (7) and the palatal/lingual cusp (5) and the buccal cusp (6) of the posterior teeth (34-37, 24-27) are coordinated with each other to form, in the region of the longitudinal fissures (7) that divide the side teeth (24-27, 34-37) approximately in the middle, at least one rest zone (11) in the median longitudinal axis (Z--Z) of the tooth, the rest zone having at least one contact region (13);

    supporting cusps of antagonist teeth of said pair lying on the at least one contact region (13) with point contact of occlusal surfaces (1,2,3,4) in the closed position of the upper and lower jaws; and

    the remaining region of the occlusal surfaces (1,2,3,4) having no touching contact, thereby avoiding a stamping action and improving masticatory properties of the tooth pair.

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