The edge of a cutting hand instrument is rested on a dental tray, which causes it to slide. What does this determine?
Correct Answer: The instrument is dull
Description: Sharpness Test:
It is a method of testing the sharpness. Sharpness of an instrument can be tested by lightly resting the cutting edge on a hard plastic surface.
If the cutting edge digs in during an attempt to slide the instrument forward over the surface, the instrument is sharp.
If it slides, the instrument is dull. Only very light pressure is exerted in testing for sharpness.
Ref: Sturdevant's art and science of operative dentistry. 4th edition page 321
Category:
Dental
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now