| 摘要 |
The invention relates to a root canal instrument ( 1 ) which has a core ( 7 ) of a flexible elastic material having shape memory. The core furthermore has a coating with abrasive particles. For the purpose, the core itself is made from a nickel-titanium alloy or from a plastics material, preferably a carbon-fibre-reinforced plastics material, the flexibility of the coating being matched to the flexibility of the core.
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