In checking instrument sharpness:
a. A shiny edge indicates the instrument is sharp.
b. Hold the instrument at a 90 angle to the nail and push or pull lightly.
A dull edge will appear as a black line.
d. The thumbnail check is more reliable than the light test.
SPECIAL INSTRUCTIONS: For exercise items 11 through 18, match the characteristics of
instruments used in the basic oral examination setup in column A with one of the six
instruments used in the basic oral examination setup in column B. Write your responses in
the spaces provided.
____11. They may be used to carry liquid
____12. They are used for diagnostic purposes
based on the sense of touch.
____13. They are also called dressing forceps.
____14. The functional end can be replaced.
____15. They are attached to the dental unit.
____16. They are used to determine the depth
of soft tissue pockets.
____17. They are used to retract soft tissues
of the cheeks, tongue, and lips.
____18. The nib has marks which are
graduated in millimeters.