초록 ▼

An endodontic file assembly includes a noncutting file guide along which a flexible file may run. The guide is first inserted into the root canal anchored at its tip and the file subsequently moved along the guide. Disproportionate forces between the file and inner and outer curvatures of the root c

An endodontic file assembly includes a noncutting file guide along which a flexible file may run. The guide is first inserted into the root canal anchored at its tip and the file subsequently moved along the guide. Disproportionate forces between the file and inner and outer curvatures of the root canal caused by the natural resilience of the file are thereby reduced to provide for more uniform debridement of the inner walls of the root canal.

대표청구항 ▼

[ I claim:] [1.] An endodontic cutter assembly comprising:an elongate guide sized to fit within a root canal of a tooth as inserted through the tooth's crown along a root canal toward a root tip of the tooth, the guide including an anchor portion having teeth adapted to anchor to the tooth at the ro

[ I claim:] [1.] An endodontic cutter assembly comprising:an elongate guide sized to fit within a root canal of a tooth as inserted through the tooth's crown along a root canal toward a root tip of the tooth, the guide including an anchor portion having teeth adapted to anchor to the tooth at the root tip to resist withdrawal of the guide with respect to the tooth; anda flexible file extending from a shank end to a point end and having outwardly extending cutting flutes over the length of the file between shank end and point end, the flutes positioned to contact a wall of the root canal when the cutter is positioned within the root canal, the cutter further having an inwardly facing guide engaging surface slidably holding the cutter to move along the elongate guide when the elongate guide is positioned within the root canal.