| 摘要 |
The invention is an improved dental instrument for root canal condensation dental work. The instrument is self-contained in that it is a combination tool used as a spreader, a condenser, and a filling material heating unit, each of which is alternately and/or concurrently useable while inserted within the root canal structure of a patient. The invention provides several embodiments, each of which comprises: a plugger component (which use combines the functions of a spreader, a condenser, and a material heating unit); a handle component affixed to the plugger component; a power supply component for producing heat; and a transmission component for transmitting heat produced by the power supply component to the material heating unit of the plugger component. The transmission component has a conveniently located finger operation switch to interrupt the power supply and cut off the flow of heat. The plugger component is provided in a range of sizes to fit the range of internal sizes in different parts of the root canal.
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