Chapter 17 Question and answers 100% correct 2024/2025
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Course
DENTAL MATERIALS
Institution
DENTAL MATERIALS
Chapter 17 Question and answers 100% correct 2024/2025 Chapter 16: Gypsum and Wax Products
Casts - correct answer Hard replicas of hard and soft tissue of the patients oral cavity, made from gypsum products;also referred to as models
Diagnostic Casts - correct answer Casts generally made...
Chapter 16: Gypsum and Wax Products
Casts - correct answer ✔Hard replicas of hard and soft tissue of the patients
oral cavity, made from gypsum products;also referred to as models
Diagnostic Casts - correct answer ✔Casts generally made from dental
plaster or stone and used of patient education, treatment planning, and
tracking the progress of a treatnebtm as with orthodontic models.
Working Casts - correct answer ✔Casts generally made from one of the
dental stones that are strong enough to resist the stresses of fabricating an
indirect restoration or prosthesis
Dies - correct answer ✔Replicas of the prepared teeth that are generally
removable from the working cast.
Model Plaster - correct answer ✔The weakest, most porous form of gypsum
product used in dentistry.
Dental stone - correct answer ✔A stronger, less porous form of gypsum
product used in dentistry.
Die stone - correct answer ✔The densest form of gypsum product used in
dentistry
Pouring - correct answer ✔The process of vibrating the flowable gypsum
product into an impression
, Trimming - correct answer ✔The process of removing excess hardened
gypsum from the cast for ease in working with the cast and appearance in
presentation
Melting range - correct answer ✔A range of melting points of the individual
components of wax
Flow - correct answer ✔The movement of wax as it approaches the melting
range
Excess residue - correct answer ✔A wax film that remains on an object after
the wax is removed
Lost wax technique - correct answer ✔A for 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.
Double pour method - correct answer ✔involves two separate mixes and two
separate setting times
Single step method - correct answer ✔one mix of gypsum is produced to
pour both the atomic and art portions of the cast.
Anatomic portion - correct answer ✔replicates the hard and soft structures.
Art portion or base - correct answer ✔aids in handling and articulating the
casts.
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