Polymeric instrument for cleaning canals in endodontic procedures

摘要

An instrument for cleaning canals during endodontic procedures is presented. The instrument is formed in one piece from a stiff polymeric material. The instrument features a handle, a measuring shaft, and a tapering shank with raised polymeric projections along its length. The present invention is designed without the use of bristles that conventional brushes contain. The raised polymeric projections include fins that may be oriented parallel to or transverse to the axis of the instrument to provide multidirectional cleaning capability. The instrument is stiff enough to penetrate a canal and mechanically scrub and scrape canal surfaces, but flexible enough to negotiate the curves of the canal.

主权项

1. An instrument for cleaning a canal of a tooth after debriding of the canal with a file, comprising:
a handle; a shank collinear with the handle comprising:
a surface;a proximal end;a distal end;an upper region contiguous with the proximal end;an apical region contiguous with the upper region and the distal end;a length; anda longitudinal axis along the length; wherein the shank tapers over the length from the proximal end to a tip at the distal end, and wherein the apical region is sized and shaped to reach an apical third of the canal; at least one first fin located on the upper region having a length with respect to the longitudinal axis and a width, the length being longer than the width and the length of the fin being oriented parallel to the longitudinal axis; and at least one second fin located on the upper region having a length and a width the length being longer than the width and the length of the fin being oriented transverse to the longitudinal axis; and a plurality of raised bumps located on the apical region wherein the handle, shank, the plurality of raised bumps, the at least one first fin, and the at least one second fin consist of a one piece polymeric composition.