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8 Cards in this Set
- Front
- Back
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What is the working end of a non-cutting hand instrument called?
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a nib
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What connects the handle of a hand instrument with a blade or nib?
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the shank
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What are most blades made out of? What are most nibs made out of?
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blades - carbon steel
nibs - stainless steel |
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What are the hand instruments chrome plated with to prevent tarnish corrosion?
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chrome
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What is the 3 number instrument formula? What is the 4 instrument formula?
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1: width of blade (10ths of mm)
2: length of blade (mm) 3: angulation of blade Four instrument has as #2 the angle of the primary cutting edge, and then the other 2 follow |
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What does an excavator look like?
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a spoon with sharpened edges
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Should impression materials be hydrophilic or hydrophobic?
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hydrophilic
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What are the 7 major chemical classes of elastomeric impression materials?
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irreversible hydrocolloid (alginate)
reversible hydrocolloid polysulfide (rubber base) polyether condensation reaction silicones addition reaction silicones (polyvinyl siloxanes) light-cured impression materials |
