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What is Cutting efficiency is best with which of the following materials? and explain in detail?
Hand instrument are made of stainless steel, carbon steel, or blades of tungsten carbide soldered to a steel handle. Carbon steel is able to keep a cutting edge better than stainless steel.
Carbide blades, however, are the most efficient in cutting, even though they are somewhat brittle.
Ref: Operative dentistry modern theory and practice Marzouk page 59