When an instrument blade contacts hard surface, discreet metal particles are worn away from the blade. As a result, the cutting edge becomes _______________. This results in a _______________ effective blade.
A dull blade is likely to _______________ the calculus, passing over it passively, rather than “biting” into it and cleanly removing it.
The serrated surface of a sharp blade viewed under intense light has a ________________ finish.
A dull edge, from which discreet metal particles have been worn away, has worn down its serrations. Under intense light, dull surface appears _______________.
A ________________ is designed specifically to differentiate a sharp instrument from a dull one.
Personal protective equipment must be worn during sharpening _______________.
All of the following are common components of sickle scalers, and gracey and universal curettes EXCEPT the _______________.
Universal curettes are designed such that each of the two parallel ______________, cutting surfaces are formed by the junction of the lateral and facial surfaces that meet at a rounded toe.
There are two cutting edges to a sickle scaler formed where the lateral surfaces meet the facial surface. These two cutting edges meet at the pointed tip.
The difference between the instruments is found at the handle. These differences make each sharpening technique a little different.
When sharpening the toe of the universal curette, the stone should be at a _____ degree angle to the vertical plane and moved up and down in a consistent motion.
When sharpening a gracey curette, use fluid overlapping up and down movement to _______________the toe.
When sharpening a gracey curette, position the stone against the right cutting blade surface at _______________ degrees right of the vertical plane and to the left for left handed operators.
All of the following are sharpening stones EXCEPT the _______________.
What is the purpose of gauze as part of the sharpening armamentarium?