| 摘要 |
A root canal sealer and cleaner provided with a dimension discriminating part at their heads so as to discriminate the dimension easily, and a method and device for forming the dimension discriminating part on the root canal sealer and cleaner. According to the root canal sealer and cleaner of the invention, a coloring part having a hue for indicating the required dimension is formed directly at the head gripped by an operating tool such as pincers, etc., at the time of the root canal cleaning and sealing treatment of a tooth, so that it is possible to indicate the dimension by each root canal sealer and cleaner itself, to discriminate easily and exactly the dimension of each root canal sealer and cleaner, and to distinguish it from those of different standards even when it is mixed with them in the course of operation. Thereby it is possible to use exactly the root canal sealers and cleaners of required standards, to eliminate various post-treatment impediment factors incidental to use of root canal sealers and cleaners of improper standards, and to carry out a perfect cleaning and tight sealing.
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