part 1 instrument sharpening 5 cards

Tagged as: music, biology, medical, medicine

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instruments must be sharp to:

scale and root plane efficiently. minimize trauma to the tissues.


a sharp edge offers:

great precision, improved quality, less working time. increased tactile sensitivity. greater control. lighter grip. fewer required strokes. less possibility of burnishing calculus. less patient discomfort. decreased possibility of nicks and grooves i


apperance of a dull edge.

cutting edge is rounded. this shiny rounded surface reflects light.


apperance of a sharp edge.

the face meets the lateral surface forming a line. length but no thickness.


tests for sharpness

visual or glare test. plastic testing stick.