发明名称 DENTAL RETRACTION DEVICE, METHOD OF PRODUCTION AND USE THEREOF
摘要 The invention relates to a dental retraction device to be used for retracting the gingiva from a prepared tooth structure, the retraction device having the shape of a cord with a radial (x- and y-direction) and longitudinal direction (z-direction) and comprising an absorbing agent and optionally a retarding agent, wherein the retraction device is able to expand in the radial direction (x- and/or y-direction), but essentially does not expand in the longitudinal direction (z- -direction) upon contact with fluid.
申请公布号 WO2007115063(A3) 申请公布日期 2007.12.21
申请号 WO2007US65442 申请日期 2007.03.29
申请人 3M INNOVATIVE PROPERTIES COMPANY;KLETTKE, THOMAS;HAMPE, RUEDIGER;PEEZ, ROBERT, F.;PEUKER, MARC;PAUSER, HELMUT;GRAMANN, JENS 发明人 KLETTKE, THOMAS;HAMPE, RUEDIGER;PEEZ, ROBERT, F.;PEUKER, MARC;PAUSER, HELMUT;GRAMANN, JENS
分类号 A61C9/00;A61C19/04 主分类号 A61C9/00
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