unit 2 PIMA
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| The combination of two metals... | Alloy
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| Discoloration of amalgam restoration... | Tarnish
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| Combination of any metal or alloy... | Amalgam
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| An instrument for carrying small masses of freshly mixed amalgam to place in cavity... | Amalgam Carrier
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| An instrument for carving a freshly placed amalgam... | Amalgam Carver
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| Uniting liquid mercury with alloy... | Amalgamation
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| A devise for mixing alloy with mercury to produce amalgam... | Amalgamator
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| An instrument for packing amalgam in cavity prep... | Amalgam plugger or condensor
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| Metal stainless steel, adapted to a prep cavity to supply missing wall... | Amalgam Matrix
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| Mixing of alloy with mercury... | Trituration
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| Placing of amalgam into prep cavity... | Condensation
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| What is the process by which acrylic resins hardens... | Polymerization (curing)
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| Ideally the set amalgam should do what... | Have little dimensional change
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| What fillers may be added to composites to make them radiopaque on a radiograph... | Barium glass or Zirconium
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| Anticariogenic properties of silicate is due to _____ present.... | Flouride
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| What solution is used to acid etch... | Phosphoric acid
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| Bonding agents placed under restoration have been found to... | Reduce microleakage
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| TorF? A stift metal spatula is used to mix most composites... | False
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| Acid etching of enamel by 30% to 50% solution or gel of phosphoric acid improves... | The retention of resin restoration and sealants to the tooth
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| Etched emamel appears... | Dull and frosty and whiter than the rest of the tooth
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| Estnetic matenals developed to restore severaly eroded cervical areas include... | Glass Ionomers
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| The mercury/alloy ratio is_______ spill mercury to one pallet of alloy if the minimal mercury technique... | one
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| Amalgam failures may occur in the form of... | recurrent caries
fracture
dimensional change
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| Amalgam that fractures usually do so... | during the first 24hrs after insertion
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| The purpose of trituration is to... | mix each alloy particle to mercury
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| Moisture contamination of amalgam may cause... | void in final restoration
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| If, after the alloy and mercury has been triturated, it is crumbly and dull appearance it may have been... | under mixed
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| ___________ is toxic, is liquid at room temp and changes to vapor if heated... | mercury
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| A health hazard of handling mercury is... | absorption of mercury through skin
inhalation vapors
inhalation airborne
inhalation particles
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| Preventive selants placed on... | occlusal surface
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| TorF? Use of non-flouride prophy paste is preferred to a flounde prophy paste when cleansing the tooth before placing a pit and fissure sealant... | True
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| Contradiction for pit and fissure sealants includes... | deep caries
smooth tooth surfaces
restrictions in occlusal surfaces
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| Application of a sealant requires all of the following except... | Application of fluoride immediately before etching
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| TorF? The sealant must have a high viscosity to easily flow into the fissure... | False
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| TorF? If salivary contamination of tooth surfaces occurs after etching, or if the etched enamel is not frosty or whiter than non etched enamel, re-etch and rinse the area... | True
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| TorF? If salivary contamination of tooth surfaces occur after etching, or if etched enamel is not frosty or whiter than non etched enamel, re-etch and rinse area... | True
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| The most common cause of overhangs on a class II amalgam restoration is... | Improper contouring placement of matrix band and wedge
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| The primary reason for polishing an amalgam restoration is to... | Reduce surface irregulation
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| Amalgam is condensed into a prep tooth by using following dental instrument... | Amalgam plugger
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