Chapter 16: Gypsum and Wax Products Flashcards

1
Q

Hard replicas of hard and soft tissue of the patient’s oral cavity, made from gypsum products; also referred to as models

A

Casts

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2
Q

Casts generally made from dental plaster or stone and used for patient ed, treatment planning, and tracking the progress of treatment, as with orthodontic models; these casts are also known as study models

A

Diagnostic Casts

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3
Q

Cast generally made from one of the dental stones that are strong enough to resist the stresses of fabricating an indirect restoration or prosthesis

A

Working casts

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4
Q

Replicas of the prepared teeth that are generally removable from the working cast

A

Dies

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5
Q

The weakest, most porous form of gypsum product used in dentistry

A

Model plaster

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6
Q

A stronger, less porous form of gypsum product used in dentistry

A

Dental stone

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7
Q

The densest form of gypsum product used in dentistry

A

Die stone

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8
Q

Refers to the process of vibrating the flowable gypsum product into an impression; this process must produce a cast that is an exact replica of the impression.

A

Pouring

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9
Q

The process of removing excess hardened gypsum from the cast for ease in working with the cast and appearance in presentation

A

Trimming

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10
Q

A range of melting points of the individual components of wax

A

Melting range

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11
Q

The movement of wax as it approaches the melting range

A

Flow

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12
Q

A wax film that remains on an object after the wax is removed

A

Excess residue

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13
Q

A duplicate of a restoration carved in wax

A

Wax pattern

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14
Q

A way of fabricating a metal restoration by encasing the wax pattern in stone and then vaporizing the wax under high temperatures to leave an empty impression space once occupied by the wax; molten metal is then cast into the space and takes the shape of the pattern

A

Lost wax technique

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