Precision attachment for a partial denture

Details Precision attachment for a partial denture Precision attachment for a partial denture

1997-11-19

1999-08-24

Wilson, John J.

Dentistry

Prosthodontics

Holding or positioning denture in mouth

433183, A61C 1312

Patent

active

059417072

ABSTRACT:
A precision attachment for a partial denture is described comprising a male portion 1 mounted onto the partial denture with an end extending horseshoe shaped anchorage means 7 comprising a pair of jaws 7a, 7b and a female portion 2 fixedly mounted around a crown 13 surrounding at least one supporting tooth, wherein female portion 2 comprises a pair of parallel side walls 2a, 2b forming a receiving cavity for the anchorage means 7 of male portion 1. Parallel side walls 2a, 2b are interconnected by a spacer pin 5 which is tightly held by jaws 7a, 7b of anchorage means 7 during insertion in place of the partial denture. A partial denture of the invention is thus disclosed with unilateral anchorage, the sole supporting means being the proposed precision attachment, whereby the partial denture can move only in one direction exhibiting a vertical upward-downward movement of its free end during mastication and thereby relieving from stresses applied onto the supporting teeth.

REFERENCES:
patent: 3535787 (1970-10-01), Korte
patent: 3787975 (1974-01-01), Zuest
patent: 3990150 (1976-11-01), Giovannini
patent: 4259073 (1981-03-01), Emmons

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