The holding device of the dental emerge total or partial, by magnetic coupling composite

摘要

Device for retaining a total or partial dental prosthesis by magnetic linkage, generated by a composite magnet 30, 31 whose flux is channeled by a ferromagnetic casing 32, 33. The ferromagnetic alloy, whose basic components are: iron (Fe), nickel (Ni) and cobalt (Co), is biocompatible in the oral medium and permits the ceramometallic linkage. The samarium-cobalt (Sm-Co) magnet is insulated on its active face 35 by a biocompatible laminated magnet block 31, of iron (Fe), chromium (Cr), cobalt (Co) type, which ensures the integral insulation in a salivary medium of the main magnet, without generating an air gap between the plane of the pole 37 and the retention base 38. IMAGE