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DEA 213
Quiz 3
Question | Answer |
---|---|
Polysulfides are not as accurate as the other final impression materials. Polysulfides have the shortest working time and longest setting time. TRUE OR FALSE | The first statement is true, the second statement is false |
A material that has a ______ viscosity will flow around the teeth better than a material with a ________ viscosity. | low; high |
What makes addition silicone impression materials advantageous is | Stability Delayed pouring time Accuracy |
Alginate Hydrocolloid is used for _____ | Study casts; custom trays; sport guards; bleaching trays |
Zinc Oxide Eugenol is used for _____ | Complete denture procedures |
Polyether is used for ______ | Crown and bridge procedures |
Polyvinyl/Vinyl Polysiloxane - PVS/VPS are used for _____ | Preliminary impressions; matrix fo provisional crown formation |
____ is an example of an inelastic impression material? | ZOE |
A metal, non-perforated tray is the most accurate tray to use when making an impression. TRUE OR FALSE | False |
Inelastic materials work for dentulous patients as they are much more rigid. true or False | False |
TRUE OR FALSE Addition silicones are the most popular type of elastomeric final impression material. The reason for this is cost. | The first statement is true; the second statement is false |
Impression materials that have mechanical properties with significant elastic deformation but return to their original form are classified as _____ | Elastomeric |
An impression tray that is used to record the prepare tooth, a bite registration, and impression of the tooth on the opposing arch is a ______ | Triple tray |