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    Root canal file and how to distinguish and enlarge needle?

    Time: 2015-01-20 14:08:02     

    Endodontic needle rotary drilling and cutting ability, deep and strong penetration, root canal wall smooth formation, suitable for wear with roots pipe cutting side wall, but in curved root canal is easy to form a step or side wear. Pull cutting force of endodontic files is strong, not easy to break, not easy for curved root canal perforation, suitable for elliptical or uneven, irregular shape of the root canal. In general should be both used alternately, straight coarse root canal more first with the expansion needle, multi use first file tube bending root, then the alternate use of.

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