June 2021 RD
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- Question 1 of 24
1. Question
What is the recommended film thickness of zinc phosphate for cementation?
CorrectIncorrect - Question 2 of 24
2. Question
The gamma phase of dental amalgam involves the binding of which two components?
CorrectIncorrect - Question 3 of 24
3. Question
The length of pins must be equal in both tooth and restoration by a depth of:
CorrectIncorrect - Question 4 of 24
4. Question
The casting shrinkage of cobalt-chromium alloys is said to be at:
CorrectIncorrect - Question 5 of 24
5. Question
The gamma-2 phase of dental amalgam involves the binding of which two components?
CorrectIncorrect - Question 6 of 24
6. Question
Which material for direct restoration has the lowest rate of survival?
CorrectIncorrect - Question 7 of 24
7. Question
What is the most common cause of failures of FPD?
CorrectIncorrect - Question 8 of 24
8. Question
What is the average lifespan of amalgam restorations?
CorrectIncorrect - Question 9 of 24
9. Question
The matrix band should be above the adjacent tooth occlusal surface by:
CorrectIncorrect - Question 10 of 24
10. Question
When placing a matrix band for amalgam restorations, the band needs to be altered and its extensions adjusted such that it extends:
CorrectIncorrect - Question 11 of 24
11. Question
What is the recommended time for curing bonding agents in dentin?
CorrectIncorrect - Question 12 of 24
12. Question
Which of the following statements about the survival rate of all-ceramic restorations is true?
CorrectIncorrect - Question 13 of 24
13. Question
The mesial and distal walls in an amalgam restoration should converge occlusally if:
CorrectIncorrect - Question 14 of 24
14. Question
The bite sensitivity that develops on a tooth that has recently received a new PFM crown is most likely due to:
CorrectIncorrect - Question 15 of 24
15. Question
What is the role of mercury in dental amalgam?
CorrectIncorrect - Question 16 of 24
16. Question
Which of the following is a disadvantage of polyvinyl siloxane impression materials?
CorrectIncorrect - Question 17 of 24
17. Question
A patient enters the clinic for a scheduled appointment and vomits over the clinic floor. Housekeeping removes all visible organic material with disposable paper towels. Which of the following types of disinfectant should be used to wipe the floor?
CorrectIncorrect - Question 18 of 24
18. Question
Which component of dental amalgam is primarily responsible for increasing the strength of the alloy?
CorrectIncorrect - Question 19 of 24
19. Question
The conditioning time of enamel by 37% orthophosphoric or phosphoric acid is:
CorrectIncorrect - Question 20 of 24
20. Question
Amalgam pins must be positioned:
CorrectIncorrect - Question 21 of 24
21. Question
Which material for indirect restoration has the highest rate of survival?
CorrectIncorrect - Question 22 of 24
22. Question
Which of the following is the most effective way to reduce the risk of inhalation of a foreign object in the dental patient?
CorrectIncorrect - Question 23 of 24
23. Question
The longevity of restorations depends on the following factors except for:
CorrectIncorrect - Question 24 of 24
24. Question
The casting shrinkage of gold alloys is said to be at:
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