The Purple Guide

 
The Purple Guide:
Developing Your
Clinical Dental Hygiene
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Finishing & Polishing

Contributed by:

Andrea
SDH  PRCC, MS.
  1. Smoother metal is less likely to: Tarnish & corrode.
  1. Abrasion: removing big scratches with little ones.
  1. Grit: particle size of abrasive.
  1. Abrasives produce: scratches.
  1.    

Diamond  f

a. Grinding

Carbide Burs  a

b.polishing metals, especially amalgams.

Cuttle  g

c. Acrylic bases (dentures).

Pumice  h

d. Real fine polishing agent (prophy paste).

Rouge  e

e. Fine red powder of iron oxide. Polish metals.

Tripoli  c

f. Hardest, most effective.

Zirconium Silicate d

g. Fish bones. Gold & resins.

Tin oxide b

h. Volcanic glass. Polish teeth & denture bases. No Fluoride.

 

  1. What type of sequence should be used when polishing? Abrasive sequence. Use the most abrasive first, and then move down.
  1. When polishing gold in reference to the margin how should you polish? Toward the margin.
  1. What should not be polished when polishing a denture base? The teeth and tissue-bearing surface.
  1. Dentifrice = Toothpaste
  1. How many times faster is dentin abraded than enamel? 5 times faster.
  1. Margination can better an amalgam how? Correct overhangs, remove excess, or improve margins.
  1. Tools used in margination: Amalgam or gold knife, files (push pull stroke), finishing strips.
  1. Put the steps to margination, finishing, & polishing in order from first to last:
    1. Slurry of fine pumice: bristle brush or rubber cup 4
    2. Smooth carving on initial appointment. 1
    3. Smoothing with shofu brownies and greenies. 3
    4. Gross smoothing with hand instruments, polishing & finishing burs, and or diamonds. 2
    5. Final Polish with rubber cups with suitable polish (tin oxide & H2O). 5

Disclaimer: These notes were copied and pasted from files sent to me by Andrea.  They have not been reviewed for errors. You are responsible for checking out the information to verify the accuracy. This site, Amy Nieves and Andrea are not responsible for typographical errors.

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