2-10. HAND INSTRUMENTS USED FOR CAVITY PREPARATION
a. General. Hand instruments are used extensively in cavity preparation. A
number of instruments of different designs are used for performing different tooth cutting
and caries-removing procedures on various surfaces of different teeth and in different
parts of the mouth.
b. Spoon Excavators (EXCAVATOR, DENTAL). Spoon excavators (figure 2-6)
are used in removing debris and decayed dentin from cavities. Paired instruments are
used. These include Darby-Perry instruments numbers 5, 6, 21, and 22, and black
instruments numbers 63, 64, 65, and 66.
Figure 2-6. Spoon excavators.