Dental Materials Word Scramble
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Term | Definition |
Alginate impression material is? A.expensive compared with other impression materials B. easy to use C. not affected by gain or loss of water D. well known for its long-term stability | B. easy to use |
Impression materials that have mechanical properties permitting considerable elastic deformation but that return to their original form are classified as: A. thermoplastic B. elastomeric C. inelastic D. resins | B. elastomeric |
Dr. Jones requested that you mix alginate and take an impression. While measuring the water, you did not notice how warm it was. This oversight will: A. make it unusable B. lengthen gelation time C. not affect gelation time D. shorten gelation time | D. shorten the gelation time |
Which of the following dental materials is an example of an aqueous elastomeric? A. impression compound B. ZOE impression paste C. polysulfide D. irreversible hydrocolloid E. addition silicone | D. irreversible hydrocolloid |
The brown paste used in rubber base is called the: A. polymer B. accelerator C. base D. filler | B. accelerator |
Dental impression compound is known as a/an: A. chemoplastic material B. irreversible material C. hydroelastic material D. thermoplastic material | D. thermoplastic material |
Which of the following is an example of an inelastic impression material? A. polysulfide B. ZOE impression paste C. alginate D. addition silicone | B. ZOE impression paste |
The term used for the setting of hydrocolloid impression materials is? A. crystallization B. polymerization C. curing D. gelation | D. gelation |
The popularity of agar impression material is limited by the: A. high cost B. need for special equipment C. poor reproduction of detail D. difficulty in pouring the impression | B. need for special equipment |
When agar impression slightly contracts and exudes water, it is termed: A. imbibition B. gelation C. syneresis D. hysteresis | C. syneresis |
Addition silicones are the most popular type of rubber impression materials. The reason for this is cost. A. true, false B. false, true C. true D. false | A. true, false |
Custom impression trays are made on a model of the patient's arch. Therefore, to make a custom tray, an alginate impression is also needed. A. true, false B. false, true C. true D. false | C. true |
Mrs. Smith has not been to the dentist for several years. It was found that she needed extensive restorative treatment. The impression material of choice would be: A. agar B. alginate C. dental impression compound D. addition silicone | B. alginate |
The impression tray that is used to record the prepared tooth, a bite registration, and an impression of the opposing teeth is a: A. stock tray B. custom tray C. triple tray D. bite registration tray | C. triple tray |
Which of the following impression materials set by physical means? A. agar B. ZOE C. alginate D. addition silicone | A. agar |
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daisenmurray
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