Theory III

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Author:
sthomp88
ID:
109489
Filename:
Theory III
Updated:
2011-10-16 23:23:30
Tags:
chapter 42 key words
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wilkins
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  1. wearing away of surface material by friction
    abrasion
  2. a material composed of particles of sufficient hardness and sharpness to cut or scratch a softer material when drawn across its surface; available in various particle sizes
    abrasive
  3. air-powered device using air and water pressure to deliver a controlled stream of specially processed sodium bicarbonate slurry through the handpiece nozzle; also called air abrasive, air polishing, air powered abrasive, or airbrasive
    air-powder polisher
  4. substance used to hold abrasive particles together; examples are ceramic bonding used for mounted abrasive points, electroplating for binding diamond chips for rotary instruments, and rubber or shellac for soft discs
    binder
  5. polishing of the anatomic crowns of the teeth to remove dental biofilm and extrinsic stains; does not involve calculus removal
    coronal polishing
  6. clear, colorless syrupy fluid used as a vehicle and sweetening agent for drugs and as solvent and vehicle for abrasive agents
    glycerin
  7. with reference to abrasive agents, grit is the particle size
    grit
  8. the production, especially by friction, of a smooth, glossy, mirror-like surface that reflects light; a very fine agent is used for polishing after a coarser agent is used for cleaning
    polishing
  9. p.s.i
    pounds per square inch
  10. r.p.m
    revolutions per minute
  11. thin, semi-fluid suspension of a solid in a liquid
    slurry

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