# Osteotomes differ from chisel in that they are:
A. Monobevelled
B. Bibevelled
C. Tetrabevelled
D. Not contain any bevels
The correct answer is B. Bibevelled.
Chisel: Chisel are unibevelled instruments for cutting bone. The edge of the working tip has bevel on one side. The working edge is sharp and is flat. To plane bone, the bevel is kept facing away from the bone.
Osteotome: Is similar to chisel, but the edge of the working tip is bibevelled. It splits bone rather than cut or chip the bone as with chisel.
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