发明授权
- 专利标题： Sealer for filling a dental root canal
- 专利标题（中）： 密封剂用于填充牙根管
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申请号： US246693申请日： 1988-09-20
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公开(公告)号： US4931096A公开(公告)日： 1990-06-05
- 发明人: Mutsuo Fujisawa , Tsutomu Kameda , Hirofumi Katsura , Reiichi Yamaga , Setsuko Ishido
- 申请人： Mutsuo Fujisawa , Tsutomu Kameda , Hirofumi Katsura , Reiichi Yamaga , Setsuko Ishido
- 申请人地址： JPX Tokyo
- 专利权人： Toyo Chemical Laboratories, Inc.
- 当前专利权人： Toyo Chemical Laboratories, Inc.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX63-26704 19880209; JPX63-167715 19880707
- 主分类号： A61K6/00
- IPC分类号： A61K6/00 ; A61K6/083
摘要：
A sealer for filling a dental root canal which can seal the apex of the root and the root canal perfectly and can be removed with the gutta percha points when refilling is necessary.The sealer of the invention consists of the same basic material as the gutta percha point, so it adheres to the point initimately and firmly and can seal the apex of the root perfectly. The softening temperature of the sealer is about 40.degree.-45.degree. C., so the points and the sealer can be removed same time by heating at low temperature with a heat carrier when refilling is necessary.