Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1992-09-11
1993-10-19
Mancene, Gene
Dentistry
Prosthodontics
Holding or positioning denture in mouth
A61C 13235
Patent
active
052540065
ABSTRACT:
A permanent magnet assembly for false tooth stabilization which includes a cup-shaped case formed of a corrosion resistant and magnetic material, an axially magnetized permanent magnet stored in the case, and a seal plate formed of a corrosion resistant material and fitted into and fixed to an end opening in the case to hermetically seal the case, the seal plate being composed of a central seal plate portion formed of a magnetic material to face the end face of the permanent magnet and a seal edge portion formed of a non-magnetic material to face in the region of the outer periphery of the permanent magnet. The width dimension of the seal edge portion is in the range of 0.03 to 0.07 mm, and at least the abutting portions of the case and seal plate are welded to each other.
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patent: 4815975 (1989-03-01), Garrel et al.
patent: 4857873 (1989-08-01), Gillings
patent: 4911640 (1990-03-01), Schwab
patent: 5013243 (1991-05-01), Tanaka et al.
patent: 5123843 (1992-06-01), Van der Zel et al.
Jackson, "The Application of Rare Earth Magnetic Retention to Osseointegrated Implants", Oral Maxillo-Facial Implant, vol. 1, No. 2, 1986.
Hitachi Metals Ltd.
Lucchesi Nicholas D.
Mancene Gene
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