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    • 26. 发明专利
    • ORTHODONTIC BRACKET
    • JPH09322905A
    • 1997-12-16
    • JP14206596
    • 1996-06-05
    • SHINAGAWA FUEL CO LTDSHINANEN ZEOMITSUKU KK
    • UCHIDA SHINJIKURIHARA YASUO
    • A61C7/14A61C7/28
    • PROBLEM TO BE SOLVED: To suppress the propagation of intraoral bacteria and to suppress the occurrence of intraoral decalcification, caries and gingival hypertrophy by incorporating inorg. antimicrobial powder into a bracket for direct bonding which is orthodontic-clinically used. SOLUTION: The inorg. antimicrobial powder is uniformly compounded with polycarbonate, etc., which are the main resin component of the orthodontic bracket. As a result, the propagation of the intraoral bacteria is suppressed and the occurrence of the intraoral decalcification, caries and gingival hypertrophy is suppressed. The inorg. antimicrobial powder to be used is exemplified by powder formed by depositing a gaseous antimicrobial agent on an inorg. carrier. Zeolite is preferably used as the inorg. carrier. Antimicrobial zeolite powder holding an antimicrobial metal is preferably used as the antimicrobial component to be used at the time of producing the inorg. antimicrobial powder. The antimicrobial zeolite is formed by substituting ion exchangeable ions with ammonium ions and antimicrobial metal ions and preferably includes ions of silver, copper or zinc.