Chapter 15

Question 1

Definition of casts

Answer 1

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

Question 2

Definition of model plaster

Answer 2

weakest, most porous form of gypsum product used in dentistry

Question 3

Definition of dental stone

Answer 3

stronger, less porous form of gypsum product used in dentistry

Question 4

Definition of dies

Answer 4

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

Question 5

Definition of die stone

Answer 5

densest form of gypsum product used in dentistry

Question 6

Definition of diagnostic casts

Answer 6

casts generally made from

Question 7

Definition of working casts

Answer 7

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

Question 8

Definition of pouring

Answer 8

pouring the cast refers to the process of vibrating the flowable gypsum product into the impression

Question 9

Definition of trimming

Answer 9

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