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Questions and Answers
What is the purpose of spruing in the casting procedure?
What is the purpose of spruing in the casting procedure?
- To provide a channel for molten alloy to reach the mold (correct)
- To control the temperature during casting
- To add strength to the wax pattern
- To create a smoother surface on the final casting
What is the purpose of inlay wax in the casting process?
What is the purpose of inlay wax in the casting process?
- To provide color to the final casting
- To form direct and indirect patterns for casting metals or hot pressing of ceramics (correct)
- To increase the hardness of the final casting
- To control the melting point of the alloy
What is the first step in the casting procedure?
What is the first step in the casting procedure?
- Wax patter fabrication
- Die preparation
- Impression
- Tooth/teeth preparation (correct)
What is the purpose of the burnout procedure in casting?
What is the purpose of the burnout procedure in casting?
What is the classification of ADA Specification No. 4 Type 2 inlay wax?
What is the classification of ADA Specification No. 4 Type 2 inlay wax?
Flashcards
Purpose of spruing?
Purpose of spruing?
Provides a channel for the molten alloy to flow into the mold during the casting process.
Purpose of inlay wax?
Purpose of inlay wax?
Inlay wax creates the pattern for casting metals or hot-pressing ceramics in both direct and indirect techniques.
First step in casting?
First step in casting?
Preparing the tooth or teeth that will receive the casting.
Purpose of burnout?
Purpose of burnout?
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ADA Type 2 inlay wax?
ADA Type 2 inlay wax?
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Study Notes
Casting Procedure
- Spruing in the casting procedure serves to create a channel for molten metal to flow into the investment, allowing for the creation of a casting.
Inlay Wax
- Inlay wax in the casting process is used to create a pattern for the desired restoration, which is later replaced by molten metal.
Steps in Casting
- The first step in the casting procedure is to create a wax pattern, which involves recording the desired shape and dimensions of the restoration.
Burnout Procedure
- The purpose of the burnout procedure in casting is to remove the wax pattern and any residual wax or debris from the investment, creating a cavity for the molten metal to fill.
ADA Specification No. 4 Type 2 Inlay Wax
- ADA Specification No. 4 Type 2 inlay wax is classified as a high-heat, high-strength wax, suitable for complex restorations and large castings.
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