Patent ID: 6935861

Claim:
Sets of posterior teeth which may be used for the production of dentures; said sets comprising: a first set of posterior teeth which provide for lingualized occlusion, the first set including maxillary premolars and molars and mandibular premolars and molars, all the maxillary premolars and molars and mandibular premolars and molars having lingual and buccal cusps, there being a central mesial-distal fossa between the cusps of the mandibular premolars and molars, the maxillary premolars and molars having prominent lingual cusps with relatively steep cusp angles of 30° or more, and the mandibular premolars and molars having shallow lingual and buccal cusp angles in the range of 15-20°; and a second set of posterior teeth which provide zero degree monoplane occlusion surfaces, the second set including maxillary and mandibular premolars and molars, all of the maxillary and mandibular premolars and molars of the second set having flat lingual and buccal cusps, and a central mesial-distal fossa; characterized by the central mesial-distal fossa of the mandibular molars and premolars of the second set contact with the corresponding lingual cusps of the maxillary premolars and molars of the first set when in the occlusal position.