Dentistry – Prosthodontics – Holding or positioning denture in mouth
Reexamination Certificate
2000-09-08
2001-10-16
Wilson, John J. (Department: 3732)
Dentistry
Prosthodontics
Holding or positioning denture in mouth
C433S169000, C433S173000
Reexamination Certificate
active
06302693
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a mechanism for engaging dental prostheses, and more particularly, to the type that includes an O-ring member.
2. Description of the Related Art
Many designs for engagement mechanisms have been designed in the past to support dental prostheses. All of them, however, include a socket in the prostheses thereby decreasing the available space and increasing the separation of engagement from the bone. By placing the socket in the abutment or a unitary implant post, the prosthesis is brought closer to the bone. This also lowers the stress point. The result is a better mechanism for supporting dental prostheses.
SUMMARY OF THE INVENTION
It is one of the main objects of the present invention to provide an abutment that increases the space available for the prosthesis by bringing the engagement close to the bone and surrounding tissue.
It is another object of this invention to provide an abutment that results in a more aesthetically appealing prosthesis.
It is still another object of the present invention to provide a lower fulcrum point resulting in less stress to the implant and surrounding bone and tissue.
It is yet another object of this invention to provide a lower stress point while increasing the space between teeth.
It is yet another object of this invention to provide a volumetrically efficient abutment that can be designed with different angles.
It is yet another object of this invention to provide an abutment that minimizes interference with the prosthesis by utilizing minimum engagement space.
It is yet another object of this invention to provide such a device that is inexpensive to manufacture and maintain while retaining its effectiveness.
Further objects of the invention will be brought out in the following part of the specification, wherein detailed description is for the purpose of fully disclosing the invention without placing limitations thereon.
REFERENCES:
patent: 4568285 (1986-02-01), Chiaramonte et al.
patent: 5071350 (1991-12-01), Niznick
patent: 5098295 (1992-03-01), Durr et al.
Sanchelima J.
Wilson John J.
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