Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1993-05-25
1994-05-31
Wilson, John J.
Dentistry
Prosthodontics
Holding or positioning denture in mouth
433172, A61C 800
Patent
active
053164776
ABSTRACT:
The improvement of the present invention pertains to a frustoconical abutment intended to overcome the problem of the implant's lack of parallelism. The abutment can be of the Allen-driven type or the through-screw type. Both engage with an implant ranging from partially to totally inserted below the gingival margin. The abutment of the Allen-driven type includes a threaded cavity that receives a threaded member of a prosthesis. The through-screw abutment includes a threaded through-opening that also receives the threaded member of a prosthesis. The frustoconical abutment permits a dentist to reduce the mass to end up with a resulting shape that will correct the lack of parallelism typically created by misaligned implants and allowing for more aesthetic form which mimics a natural tooth shape. This is particularly helpful when part of the implant's end protrudes from the gingival margin instead of submerged below it.
REFERENCES:
patent: 4842518 (1989-06-01), Linkow et al.
patent: 4907969 (1990-03-01), Ward
patent: 4975059 (1990-12-01), Sendax
patent: 5030095 (1991-07-01), Niznick
patent: 5035619 (1991-07-01), Daftary
patent: 5116225 (1992-05-01), Riera
Articles by Andre Schroeder et al. The New Concept of ITI Hollow-Cylinder and Hollow-Screw Implants, Parts 1 and 2 of vol. 3, No. 3, 1988, The Int'l Journal of Oral and Maxillofacial Implants.
Catalog of the Core-Vent Corporation, pp. 13,16 and 18, 1991.
Brochure issued by "O" Company, Inc., Albuquerque, N.M. pp. 1 and 7.
Sanchelima Jay
Wilson John J.
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