Title: Zero-degree posterior teeth for a lower and an upper denture

Abstract: Zero-degree posterior teeth for a lower and an upper denture, wherein opposite posterior teeth interact at least substantially in line contact. The contour at the level of the active surface of the posterior teeth closely resembles the contour of natural posterior teeth. In each pair of opposite posterior teeth the lingual or palatal contour section of one posterior tooth is provided with a line shaped masticatory rim and the buccal contour section of this posterior tooth is provided with a masticatory plane, while the palatal or lingual contour section of the opposite posterior tooth is provided with a masticatory plane and the buccal contour section of this opposite posterior tooth is provided with a line shaped masticatory rim. The posterior teeth are provided with evacuation channels in their active surface, which channels originate near the line contact between opposite posterior teeth, their depth gradually increasing towards their end at the contour.

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Inventors: Schreinemakers, Josephus (Maarheeze, NL)

Application Number: 951589
Filing Date: 1978-10-16
Publication_date: 1980-10-07
Assignee: Dental Holding N.V. (Willemstad, AN)
Primary Class(es): 433/197
Other Classes:
US Patent Ref:

1941735	Jan, 1934	Berry	32/8.
2113568	Apr, 1938	Andrus	32/8.
2308553	Jan, 1943	Steele et al.	32/8.
2397407	Mar, 1946	Butler	32/8.
2593815	Apr, 1952	Vidauer	32/8.
3755898	Sep, 1973	Wamen	32/8.

Other Refs:
Primary Examiner: Peshock, Robert
Assistant Examiner:
Attorney: Kane, Dalsimer, Kane, Sullivan and Kurucz