Dentistry – Prosthodontics – Stress breaker
Patent
1992-08-10
1993-05-25
Wilson, John J.
Dentistry
Prosthodontics
Stress breaker
433173, A61C 800
Patent
active
052135004
ABSTRACT:
A dental implant system comprising a foundation fixture to be embedded in the jaw bone; said system further comprising a hollow transmucosal abutment member supporting a keeper for either a single tooth prosthesis or multiple teeth prostheses. The abutment comprises a plurality of inwardly curved resilient members defining a hollow column extending from a series of external threads which connect, in torus-like fashion, to a hollow pedestal section for the abutment. The internal surfaces of the resilient members have configured protrusions configured to interlock with the keeper. This configuration, in a no-load condition, allows the keeper to rest within the foundation fixture at sufficiently spaced-apart relationship between the keeper and the fixture to maintain a shock-absorbing fluid reservoir. An elastic seal is fitted between the keeper base and the pedestal of the abutment for closure of the reservoir.
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patent: 4938693 (1990-07-01), Bulakiev
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patent: 5049073 (1991-09-01), Lauks
Guerra Ricardo
Salazar Alfred
Peoples, Jr. Veo
Wilson John J.
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