Artificial posterior tooth for the human teeth
First Claim
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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Abstract
The present invention concerns an artificial posterior tooth, namely a large and small posterior tooth for the upper and lower human jaw, the occlusal surface of which has at least one buccal cusp 6 and at least one palatal cusp 5, between which a longitudinal fissure 7 runs in the longitudinal direction of the tooth, the buccal cusp 6 of the posterior teeth of the lower jaw engaging in the fissure in the posterior teeth of the upper jaw and the palatal cusp 5 of the posterior teeth of the upper jaw engaging in the longitudinal fissure in the posterior teeth of the lower jaw. The longitudinal fissures 7 and the palatal/lingual cusps 5 and buccal cusps 6, respectively, of the posterior teeth 34 to 37 and 24 to 27 are adapted to one another such that, in the region of the longitudinal fissures 7, at least one rest zone 11 is formed in which there is a punctiform contact in the closed position of the posterior teeth 34 to 37 and 24 to 27, respectively.
46 Citations
14 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification