DENTAL MAGNETIC ATTACHMENT AND PROCESS FOR PRODUCING THE SAME

PROBLEM TO BE SOLVED: To provide a dental magnetic attachment and a process for producing the same for fixing a denture to an anchor tooth of a residual ridge part in the oral cavity, which is particularly effective when the anchor tooth is an anterior tooth. SOLUTION: The dental magnetic attachment comprises a keeper 1, made of a soft magnetic material, having an adsorbing surface 1a forming an externally convex curved line in a major axis and an externally convex curved line or a straight line in a minor axis continued to the externally convex curved line in the major axis and having a ratio of a major axis diameter to a minor axis diameter of 1.02 to 2.0; and a magnet structure 6 comprising a cylindrical permanent magnet embedded in a circular depressed part 2a provided in a central part of a cup yoke 2 formed with the soft magnetic material, with the depressed part 2a, of the cup yoke 2, being sealed by welding with a soft magnetic disk plate 5 through a non-magnetic ring seal 4 to form a plane adsorbing surface 6a having the substantially same shape as the adsorbing surface 1a of the keeper 1, with a minor axis diameter of the adsorbing surface 6a of the magnet structure 6 of 1.1 to 1.4 with respect to the diameter of the cylindrical permanent magnet being 1. COPYRIGHT: (C)2005,JPO&NCIPI