27 Questions
What is the primary reason for taking impressions in dentistry?
All of the above
What type of impression material is Zinc oxide?
Compound
How should the tray be loaded for an impression?
Mix the powder and water, then load the tray
What is the recommended way to handle the patient during a maxillary impression?
The operator should be standing
What is the purpose of using Vaseline in an impression?
To remove wax undercuts
How should the tray be selected for an impression?
Based on the anatomy of the teeth
What is the purpose of desinfection in an impression?
To prevent the spread of infection
What is the recommended storage method for irreversible hydrocolloid impressions?
In a 100% humidity environment
What should be reviewed after taking an impression?
The impression for air bubbles, tears, and drags
What is the primary objective of taking impressions in dentistry?
To create a precise model of the patient's mouth
What type of silicone is commonly used in dentistry for impression taking?
Addition silicone
What is the ideal depth for an alginate buccal impression?
3mm
Why is it essential to mix alginate powder and water accurately?
To achieve the correct consistency for impression taking
What is the primary purpose of using wax undercuts in an impression?
To improve the retention of the impression material
What is the recommended method for disinfecting an irreversible hydrocolloid impression?
Disinfecting with a 100% humidity label
What should be checked during the review of an impression?
Air bubbles, tears, and drags
What is the primary advantage of using an anatomy-led tray selection?
Increased accuracy of the impression
What type of impression material is polysulfide?
Elastomer
What is the primary consideration when selecting an impression tray?
The anatomy of the mouth
Why is it important to measure the powder and water accurately when mixing alginate?
To achieve a consistent impression quality
What is the primary purpose of using a reversible hydrocolloid impression?
Not mentioned in the content
What should be done to the teeth before taking an impression?
Clean and dry
What is the primary purpose of reviewing an impression after it has been taken?
All of the above
What is the ideal temperature for mixing alginate?
Not mentioned in the content
Why is it important to communicate with the laboratory during the construction of casts?
To ensure the correct prescription is followed
What should be done to the impression after it has been removed from the mouth?
Disinfect and rinse
What is the primary purpose of using an irreversible hydrocolloid impression?
To create a permanent record
Test your knowledge of dental impressions, including selecting and modifying impression trays, protocols for using and disinfecting irreversible hydrocolloid impressions, and laboratory communication for cast construction. Learn about the different materials used in dental impressions, such as elastomers and addition silicones. Understand the importance of impressions in dentistry, including prescription, communication, and record-keeping.
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