发明名称 Set of endodontic instruments
摘要 A set of endodontic instrument adapted to remove material from walls of a root canal having a working portion with a relatively short working length. A substantially untapered nonworking portion of the instrument shaft with substantially parallel sidewalls and a diameter substantially the same as the diameter of the proximal end of the working portion extends from adjacent a proximal end of the working portion to the proximal end of the shaft. The working portions of the set of instruments have relatively small, slowly progressing taper rates.
申请公布号 US8439682(B1) 申请公布日期 2013.05.14
申请号 US20090398142 申请日期 2009.03.04
申请人 HEATH DEREK;TREADWAY STEVE;D&S DENTAL, LLC 发明人 HEATH DEREK;TREADWAY STEVE
分类号 A61C5/02 主分类号 A61C5/02
代理机构 代理人
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