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永磁体应用于口腔修复已有几十年的历史。最初是利用永磁体的相斥力以辅助上下全口义齿同位,利用永磁体的吸引力作颜面、颌骨缺损修复体的固位;以后用于种植义齿和复盖义齿的附着器等。目前不但国外许多大学如日本的德岛大学、澳州的雪莉大学等正集中精力研究,已有磁性固位附着器元件出售,而且磁性合金的研究也有了新的进展。永磁体和磁性合金配合使用,为在修复领域内应用开辟了广阔的前景。永磁体和磁性合金材料 (一)种类过去所用水磁体种类有铁氧体(ferrite)铝镍钴(Alnico)永磁体,磁力不大,需要加大体积才能增加引力,因而使用于口
Permanent magnets have been used in oral repair for decades. The first is the use of repulsion of permanent magnets to assist the upper and lower full denture isotropic, the use of permanent magnet attraction for the face, jaw defect prosthesis retention; later used to implant prosthesis and overdenture attachment. At present, not only many foreign universities such as Tokushima University in Japan, Shirley University in Australia are concentrating on the research, there have been magnetic retainer components for sale, and magnetic alloys have also made new progress. The combination of permanent magnet and magnetic alloy opens up broad prospects for application in the field of repair. Permanent magnets and magnetic alloy materials (A) Type The past used in the type of water magnetic ferrite Alnico (Alnico) permanent magnet, magnetic force is not large, you need to increase the volume in order to increase the gravity, thus used in the mouth