Exam (elaborations)
DAS145 EXPANDED FUNCTIONS 2024/2025 EXAM QUESTIONS AND ANSWERS
- Course
- DAS145
- Institution
- Fortis College
DAS145 EXPANDED FUNCTIONS 2024/2025 EXAM QUESTIONS AND ANSWERS
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ESTUDYDAS145 EXPANDED FUNCTIONS 2024/2025 EXAM
QUESTIONS AND ANSWERS
### Tests and Materials
1. **What is a percussion test?**
a) Tapping on the incisal or occlusal surface of a tooth with a dental probe
b) Tapping on the incisal or occlusal surface of a tooth with a mouth mirror handle
c) Applying pressure to the gum with a dental instrument
d) Using a dental light to examine tooth sensitivity
**Answer: b) Tapping on the incisal or occlusal surface of a tooth with a mouth mirror handle**
2. **What is a palpation test?**
a) Applying light pressure to the tooth to check for decay
b) Applying firm pressure to the mucosa above the apex of the root to check for sensitivity or swelling
c) Using a mirror to inspect the tooth surface
d) Measuring the tooth's response to cold
**Answer: b) Applying firm pressure to the mucosa above the apex of the root to check for sensitivity
or swelling**
3. **When is a thermal stimulus never used?**
a) For detecting caries
b) For evaluating pulp vitality
c) On metallic restorations or gingival tissue
d) For measuring gum depth
**Answer: c) On metallic restorations or gingival tissue**
4. **What is the cold test?**
a) Using heat to evaluate tooth response
b) Using ice, dry ice, or carbon dioxide to test tooth response to cold
c) Applying a chemical solution to the tooth
d) Using a dental mirror to inspect tooth sensitivity
,ESTUDY
**Answer: b) Using ice, dry ice, or carbon dioxide to test tooth response to cold**
5. **What is the heat test?**
a) A method to check for pulp vitality using cold
b) The least useful vitality test, as a painful response could indicate either reversible or irreversible
pulpitis
c) A test for detecting gum disease
d) A method to clean the tooth
**Answer: b) The least useful vitality test, as a painful response could indicate either reversible or
irreversible pulpitis**
6. **What is the working time and setting time for normal set alginate?**
a) Working time of 1 minute and setting time of 3 minutes
b) Working time of 2 minutes and setting time of up to 4 1/2 minutes
c) Working time of 5 minutes and setting time of 10 minutes
d) Working time of 3 minutes and setting time of 6 minutes
**Answer: b) Working time of 2 minutes and setting time of up to 4 1/2 minutes**
7. **What are the working and setting times for fast set alginate?**
a) Working time of 1 minute and setting time of 2 minutes
b) Working time of 2 minutes and setting time of 4 minutes
c) Working time of 1 1/4 minutes and setting time of 1-2 minutes
d) Working time of 3 minutes and setting time of 5 minutes
**Answer: c) Working time of 1 1/4 minutes and setting time of 1-2 minutes**
8. **What is fluoride varnish?**
a) A liquid fluoride applied directly to teeth without a base
b) A concentrated topical fluoride in a resin or synthetic base applied to teeth to extend fluoride
exposure
c) A gel used for teeth whitening
d) A fluoride treatment used in mouth rinses
**Answer: b) A concentrated topical fluoride in a resin or synthetic base applied to teeth to extend
fluoride exposure**
, ESTUDY
9. **What is provisional coverage?**
a) A permanent restoration applied to a tooth
b) A temporary covering placed on a tooth to protect it until the permanent restoration is ready
c) A fluoride treatment for teeth
d) A cleaning procedure for dental restorations
**Answer: b) A temporary covering placed on a tooth to protect it until the permanent restoration is
ready**
10. **What happens if excess cement is not removed?**
a) It will improve the restoration’s strength
b) It can irritate the area, causing inflammation and discomfort
c) It will help secure the restoration
d) It will prevent the restoration from loosening
**Answer: b) It can irritate the area, causing inflammation and discomfort**
11. **In which direction should excess cement be removed?**
a) Upward
b) Downward
c) Horizontal
d) Diagonal
**Answer: c) Horizontal**
### Retraction and Clamps
12. **What is gingival retraction?**
a) Removing excess enamel
b) Temporarily displacing tissue and widening the sulcus so that impression material can flow around
all parts of the preparation
c) Cleaning the tooth surface
d) Applying fluoride to the teeth
**Answer: b) Temporarily displacing tissue and widening the sulcus so that impression material can
flow around all parts of the preparation**
13. **What should be done with retraction cord before placement?**
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