Artificial teeth

Details Artificial teeth Artificial teeth

1987-10-07

1989-01-03

Wilson, John J.

Dentistry

Prosthodontics

Tooth construction

433192, 433218, A61C 1308

Patent

active

047953454

ABSTRACT:
An artificial tooth has a length of its buccal side substantially equal to that of a natural tooth and a length of its lingual side in the range of 4.0 mm to a length shorter than the length of its buccal side by at least 2.5 mm. A basal surface is of a concave shape in engagement with a more convex shape than the shape in cross-section of the alveolar ridge. One or two proximal surfaces of the basal surface is or are provided at the substantial center with an occlusally inclined smooth groove having a width of 1.5 to 5.0 mm, a maximum depth of 0.5 to 3.0 mm, and an proximal upper end located away from the highest position. The occlusal surface has a mesiodistal length substantially equal to that of a natural tooth and a W.sub.2 /W.sub.1 ratio falling in the range of 55 to 95% of that of a natural tooth, wherein W.sub.1 is the mesiodistal length and W.sub.2 is the buccolingual length.

REFERENCES:
patent: 178143 (1876-05-01), Hall
patent: 1743873 (1930-01-01), Zaslove
patent: 2419084 (1947-04-01), Myerson et al.
patent: 2585857 (1952-02-01), Schwartz
patent: 3468028 (1969-09-01), Sunter

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