摘要 |
PURPOSE:Soft magnetic alloy for dental surgery, obtained by alloying Au, Co, Pt at a specific ratio, using combined with rare earth Co base permanent having a high magnetic energy. COMPOSITION:Alloy, composed of Co;15-70%, Pt;5-70%, Au; balance and regulated so as to be Co/Pt ratio not less than 3/7 and moreover, contained one or more than two kinds of Mn, Zn, Sn, Al, Si, Mg as deoxidizer for obtaining casting alloy having no blow hole at not more than 5%. USE:The soft magnetic alloy 3 having the above mentioned composition, is filled in the root part of the tooth 2 remained in the flesh part 1. The rare earth Co base magnet 5 having a high magnetic energy, is put in the crown part of the tooth 4 so as to face the one hand magnetic pole against the alloy 3 and both are fixed by the magnetic sucking force. Thus, the above method is able to use for filling and reform of dental surgery effectively. |