Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1978-12-08
1980-09-30
Peshock, Robert
Dentistry
Prosthodontics
Holding or positioning denture in mouth
A61C 1300
Patent
active
042256682
ABSTRACT:
An improved endo-osseous apparatus for dental plates is described which comprises a series of blades for the anchoring to the osseous tissue of the gums. The upper portion of each anchoring blade is formed by a projecting threaded pin of small diameter, provided with a movable or fixed cap or bush and with an internally threaded hollow element adapted to be screwed onto the pin. A ferula is provided with through holes, for insertion of the pins. The anchoring blades are fixed to the ferula by means of threaded hollow elements or knurled nuts which are screwed to the pin. The threaded hollow element may be a frustum conical cap, with the end zone flap-enlarged and having the same diameter as the cap or bush. The ferula may be provided with projections, each projection having a frustum-conical shape, the projections located at the two hollow ends of the ferula being hollow and internally threaded, thus allowing for the prosthesis to be fixed by screws passing through the corresponding holes of the prosthesis teeth and screwed in the projections. A temporary ferula is fixed into the projecting pins, and a temporary prosthesis is fixed onto the temporary ferula. After perfect cicatrization has occurred, the temporary prosthesis and ferula are removed, the final ferula is fixed by means of the internally threaded hollow elements, and the final prosthesis provided with suitable through holes is fixed.
REFERENCES:
patent: 1140538 (1915-05-01), Skinner
patent: 2836890 (1958-06-01), Sibuis
patent: 3414975 (1968-12-01), Small
patent: 3514858 (1970-06-01), Silverman
patent: 3748739 (1973-07-01), Thibert
patent: 3837080 (1974-09-01), Pasqualini
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