excavator (eks´ca-va-tor, -tor)

1. An instrument like a large sharp spoon or scoop, used in scraping out pathologic tissue. 2. In dentistry, an instrument, generally a small spoon or curette, for cleaning out and shaping a carious cavity preparatory to filling.
hatchet e. See hatchet.
hoe e. a single-beveled dental e., with the blade at an angle to the axis of the handle and the cutting edge perpendicular to the plane of the angle.


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