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Questions and Answers
Which term refers to the process of heating a solid material to drive off volatile chemically combined components such as water and carbon dioxide?
Which term refers to the process of heating a solid material to drive off volatile chemically combined components such as water and carbon dioxide?
- Cast
- Dental Plaster
- Dental Stone
- Calcination (correct)
What is a reproduction of the shape of a structure made in an impression of the surface called?
What is a reproduction of the shape of a structure made in an impression of the surface called?
- Cast (correct)
- Dental Plaster
- Calcination
- Dental Stone
Which term refers to the beta form of calcium hemihydrate?
Which term refers to the beta form of calcium hemihydrate?
- Cast
- Calcination
- Dental Plaster (correct)
- Dental Stone
What are the three common forms of gypsum products when mixed with water?
What are the three common forms of gypsum products when mixed with water?
What is the alpha form of calcium sulfate hemihydrate called?
What is the alpha form of calcium sulfate hemihydrate called?
Flashcards
Calcination definition
Calcination definition
Heating a solid to remove volatile compounds like water and CO2.
Cast definition
Cast definition
A shape copy made from an impression.
Dental Plaster
Dental Plaster
Beta form of calcium hemihydrate.
Gypsum product types
Gypsum product types
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Dental Stone form
Dental Stone form
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Study Notes
Key Terms in Material Processing
- Sintering: The process of heating solid materials to eliminate volatile components like water and carbon dioxide, enhancing the material's properties.
Reproduction Techniques
- Cast: A reproduction of a structure's shape created from an impression made on a surface, allowing for the creation of copies from a mold.
Calcium Hemihydrate Forms
- Beta form of Calcium Hemihydrate: Commonly referred to as Plaster of Paris; it is a processed form of gypsum that has specific properties suited for various applications.
Gypsum Products
- Three common forms of gypsum products when mixed with water include:
- Plaster: A soft form used for casts and molds.
- Dental Stone: A stronger form suitable for dental applications.
- Fireproofing Board: A type utilized for construction and fire safety.
Alpha Form of Calcium Sulfate Hemihydrate
- Alpha form: Known as Dental Stone; it possesses greater strength and is often used in precise dental molds and other applications requiring durability.
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