发明名称 Dental reamer
摘要 A dental reamer adapted for removing damaged nerve tissue and dead or injured cell material from the root canal of a tooth is formed with a tapered shank with at least two oppositely disposed continuous helical flutes formed along at least a part of its shank to define two oppositely disposed continuous helical upwardly facing cutting edges.
申请公布号 US4538989(A) 申请公布日期 1985.09.03
申请号 US19800184645 申请日期 1980.09.16
申请人 DENTSPLY INTERNATIONAL, INC. 发明人 APAIRO, JR., JERRY;HEATH, DEREK E.
分类号 A61C3/02;(IPC1-7):A61C5/02 主分类号 A61C3/02
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