Mechanically retained fixed partial denture

Details Mechanically retained fixed partial denture Mechanically retained fixed partial denture

1991-12-06

1993-05-25

Wilson, John J.

Dentistry

Prosthodontics

Holding or positioning denture in mouth

433182, A61C 1312

Patent

active

052135012

ABSTRACT:
A mechanically retained fixed partial denture is a three part device which is assembled to form the pontic. The three parts to interlock in a non-displaceable manner as follows: 1) a buccal element engages the buccal surfaces of the abutment teeth 2) a lingual element engages the lingual surfaces of the abutment teeth; 3) part of the buccal element is within the body of the lingual element; 4) and an incisal attachment element then connects the buccal and lingual elements. The incisal attachment element comprises an elongated member which, upon assembly, extends through a linear aperture located within the body of both the buccal element and the lingual element both simultaneously and continuously, to form an interlocking system resulting in one functional unit made up of the three elements. The advantages of this mechanical retention are 1) conservation of tooth structure; 2) efficiency due to time savings; 3) low expense; and 4) no complications of tooth preparation. The devices is adaptable to replace several adjacent teeth.

REFERENCES:
patent: 1638820 (1927-08-01), Baratt
patent: 1941096 (1933-12-01), Lasky
patent: 2111787 (1938-03-01), Knowles
patent: 2573804 (1951-11-01), Neustadter
patent: 3675326 (1972-07-01), Desmarets
patent: 4406622 (1983-09-01), Yoon
patent: 4431415 (1984-02-01), Tigani
patent: 4661067 (1987-04-01), Harvey, Sr. et al.
patent: 4746295 (1988-05-01), Kipp

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