10 Questions
What is the purpose of a preliminary impression?
To make a study (diagnostic) cast for custom impression trays
What is a complete denture impression?
A negative registration of the entire denture bearing, stabilizing, and border seal areas
What is the purpose of a final (secondary) impression?
To make the master cast for denture fabrication
What defines an impression tray?
The part used to carry the impression material into the mouth
What is a preliminary impression used for?
Making a study (diagnostic) cast upon which custom impression trays will be fabricated
What is the purpose of a preliminary impression?
To make a study (diagnostic) cast for fabricating custom impression trays
What is a complete denture impression used for?
Negative registration of denture bearing, stabilizing, and border seal areas
What defines an impression tray?
It holds the impression material during the process
What is the purpose of a final (secondary) impression?
To produce a more accurate impression in a custom tray
What materials are used for making an impression?
Elastomeric materials, such as silicone and polyether
Study Notes
Impression in Dentistry
- A preliminary impression is used to create a replica of the patient's oral cavity, providing a general understanding of the patient's mouth and helping to identify potential problems.
Types of Impressions
- A complete denture impression is a detailed replica of the patient's oral cavity, used to create a precise fit for the denture.
- A final (secondary) impression is used to refine the details of the denture, ensuring a precise fit and optimal function.
Impression Trays
- An impression tray is a device used to carry and support the impression material during the impression-making process.
Purpose of Impressions
- The purpose of a preliminary impression is to create a preliminary model, identify potential problems, and plan the denture fabrication process.
- The purpose of a final (secondary) impression is to refine the details of the denture, ensuring a precise fit and optimal function.
Impression Materials
- Various materials are used for making impressions, including alginate, elastomers, and wax.
Test your knowledge on the steps and materials involved in making dental impressions, as well as the objectives of preliminary impressions. This quiz covers the basics of C D fabrication and learning outcomes in prosthodontics.
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