| 摘要 |
This invention relates to a twisted wire interdental toothbrushes having corrugated, conical and rounded bristle ends. A method to prepare toothbrush by spinning interdental toothbrush both transversally to toothbrush axis, and axially throughout its longitudinal axis, while bristles are bent and interdental toothbrush bristle ends are ground against a flat abrasive surface in movement.
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