| 摘要 |
Disclosed herein is an instrument for measuring an endodontic length, which measures and indicates the distance from a pointed tip of a cutting tool to a root apex in order to prevent the pointed tip of the cutting tool from going over the root apex when a root canal is perforated by the cutting tool for an endodontic treatment of a root canal of a tooth. The endodontic length measuring instrument is equipped inside a unit chair system installed in a consultation room of a dental clinic and allows a monitor mounted on the unit chair system to display a measurement result of the endodontic length, thereby making a medical treatment of a root canal easy, easily providing a measurement result of the endodontic length to a doctor, and displaying treatment and measurement results of the root canal in various and precise ways. The measuring instrument provides a scaled-up image of the remaining distance from the pointed tip of the cutting tool to the root apex when the pointed tip of the cutting tool reaches an area which demands a more precise measurement result, thereby increasing safety and accuracy in perforation of the root canal.
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