Magnetic attachment for dental prosthesis

Abstract

Provided is a magnetic attachment for dental prosthesis, in which a material used for an outer shell which covers a permanent magnet does not become magnetized at an unintended portion to reduce magnetic attraction, and which can be easily manufactured. The magnetic attachment for dental prosthesis includes a permanent magnet structure to be fixed to a denture base, on a side where is to have contact with a residual ridge, wherein the permanent magnet is arranged inside the outer shell, and a keeper including a soft magnetic metal material to be fixed on an upper side of a residual ridge in an oral cavity, in a manner to face the permanent magnet structure, wherein a spacer made of a nonmagnetic metal material forming a part of the outer shell which covers the permanent magnet is fixated to another member which forms the outer shell by means of an adhesive agent.

Dependencies are inferred from the claim text.