Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1993-12-23
1996-06-18
O'Connor, Cary E.
Dentistry
Prosthodontics
Holding or positioning denture in mouth
433173, A61C 800
Patent
active
055271820
ABSTRACT:
Dental implant abutment systems, related devices, and implantology processes and techniques. The abutment systems include a base that is adapted to mount in nonrotating fashion on any desired dental implant, root form or blade, from any supplier, together with a fixation screw which secures the base to the implant. A core, to which an abutment is cast in customized shape and form as desired is attached to the base preferably in threaded fashion and secured with an appropriate antirotational mechanism. Alternatively, the core and abutment may be formed using CAM processes. Such abutment systems, unlike prevalent conventional systems, do not require a central access bore in the core or abutment components, and they occupy significantly less volume than conventional abutments. Accordingly, abutment systems according to the present invention more flexibly accommodate a wide range of axial inclinations between implant and the overlying crown or prosthesis, preclude loosening of fixation screws, allow precision attachments to be included in the abutments for providing virtually completely passively fitting patient removable prostheses, and save considerable time, effort and expense because of the added simplicity and lower parts inventory required. Also disclosed are tapered gingivectomy procedures for replicating natural tooth emergence which is enhanced by abutments according to the present invention, together with precision attachments, impression copings and analogs, and other peripheral components useful with systems and techniques of the present invention.
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ADT Advanced Dental Technologies, Ltd.
Ewing, IV James L.
O'Connor Cary E.
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