| 摘要 |
A manually operated endodontic instrument composed of: an endodontic file; and a handle to which the file is immovably secured, the handle being formed to be gripped between the thumb and the index finger, having a longitudinal axis and an outer surface and including a central, longitudinally extending portion and first and second bulbous portions each joined to a respective longitudinal end of the central portion and each projecting laterally beyond the central portion, the handle being provided, at its outer surface, with at least two circumferentially spaced recesses extending longitudinally along at least part of the central portion.
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