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Nomenclature of Hand Instruments

# The shape of the shank of an instrument is described by: 
A. Class 
B. Subclass 
C. Suborder 
D. Order 



The correct answer is B. Subclass.


Dr. G.V. Black established a nomenclature for hand instruments, similar to the biological classification. 

1. Order : Purpose of instrument Eg : excavator or scaler. 
2. Suborder : Position or manner of use Eg : Push, pull 
3. Class : Form of working end, Eg : hatchet, chisel. 
4. Subclass : Shape of shank Eg : Monoangle or binangle. 

Naming usually moves from 4 to 1. 





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