Dental Materials Final Exam Questions
With 100% Verified Answers
For which will the dentist likely place a composite resin restoration CORRECT
ANSWERS Have surface congenital abnormalities
Requires class 111 restorative restorations
Display surface defects such a hypocalcification
1. Which types of crystals are present in a gysum material used to make diagnostic
models for a case presentation? CORRECT ANSWERS Porous crystals
Irregular crystals
1. Which noble metals are most commonly used for fabricating crowns and bridges?
CORRECT ANSWERS Gold,
Platinium
Palladium
1. Which person write and signs a lab prescription? CORRECT ANSWERS Dentist
1. In sequential order which steps are followed to prepare composite resin materials for
a restoration process? CORRECT ANSWERS -Select the tooth shade
-Prepare syringe with new tip for application
-Transfer composite instrument and material to dentist
-Transfer a curing light to the dentist
1. During fabrication of a custom acrylic provision crown which dental lab instrument is
used to polish a crown? CORRECT ANSWERS rag wheel
1. What technique involves shortening and reducing an endontically treated tooth?
CORRECT ANSWERS Short coping
1. Which EXTRAORAL factors are taken into place when constructing a denture?
CORRECT ANSWERS Age
Physical health
Economic factors
1. Which purpose is served by condensing amalgam CORRECT ANSWERS Aids in
removing any excess mercury
Compacts material tightly into the tooth preparation
1. Which patient instruction are included for care of provisional dental coverage
CORRECT ANSWERS Avoid sticky foods
Floss gently
, 1. What does "laboratory working days" mean? CORRECT ANSWERS Days required to
complete cast
1. What advantages do glass ionomers have for core buildups compared with
amalgam? CORRECT ANSWERS Provide better adhesion
Provide ease of placement
Release fluoride after setting
1. Which description best describes the double pour method of pouring dental models
with gypsum? CORRECT ANSWERS The anatomical portion of the impression is
poured. A second mix of the gypsum is mixed and used to form the base for the model
1. When mixing dental cement which factor contribute to dispensing the powder first and
the liquid second? CORRECT ANSWERS Humidity
Room temperature
Which type of material is used to create a mouth guard on a vacuum former?
CORRECT ANSWERS Heavier gauge plastic that does not require a spacer but does
require a handle
1. Which characteristics describe acrylic teeth? CORRECT ANSWERS Higher wear
tendency
Higher susceptibility to staining
1. Which characteristics best describe a maxillary dental cast trimmed for a case
presentation using a geometric standard? CORRECT ANSWERS Trimmed anterior cuts
from midline canine to midline
The base of the cast trimmed to be parallel with the occlusal plane
Trimmed sides of the cast parallel to the centre of the occlusal ridges
The heels of the cast trimmed to be perpendicular with the midpalate raphe
1. Which application is constructed with a rigid and heavy gauge vacuum former
thermoplastic resin that requires a space and a handle CORRECT ANSWERS
Impression tray
1. Which patient situation indicates a need to prescribe a full denture CORRECT
ANSWERS Totally edentulous
Refuses alternative treatment options
Remaining teeth cannot support partial dentures
1. Which cement creates a thin film layer necessary for accurate cementation of
castings? CORRECT ANSWERS Zinc phosphate type 1
1. For which patient will a dentist most likely place a composite resin restoration?
CORRECT ANSWERS Have congenital surface abnormalities
Require class 111 restorative restorations
With 100% Verified Answers
For which will the dentist likely place a composite resin restoration CORRECT
ANSWERS Have surface congenital abnormalities
Requires class 111 restorative restorations
Display surface defects such a hypocalcification
1. Which types of crystals are present in a gysum material used to make diagnostic
models for a case presentation? CORRECT ANSWERS Porous crystals
Irregular crystals
1. Which noble metals are most commonly used for fabricating crowns and bridges?
CORRECT ANSWERS Gold,
Platinium
Palladium
1. Which person write and signs a lab prescription? CORRECT ANSWERS Dentist
1. In sequential order which steps are followed to prepare composite resin materials for
a restoration process? CORRECT ANSWERS -Select the tooth shade
-Prepare syringe with new tip for application
-Transfer composite instrument and material to dentist
-Transfer a curing light to the dentist
1. During fabrication of a custom acrylic provision crown which dental lab instrument is
used to polish a crown? CORRECT ANSWERS rag wheel
1. What technique involves shortening and reducing an endontically treated tooth?
CORRECT ANSWERS Short coping
1. Which EXTRAORAL factors are taken into place when constructing a denture?
CORRECT ANSWERS Age
Physical health
Economic factors
1. Which purpose is served by condensing amalgam CORRECT ANSWERS Aids in
removing any excess mercury
Compacts material tightly into the tooth preparation
1. Which patient instruction are included for care of provisional dental coverage
CORRECT ANSWERS Avoid sticky foods
Floss gently
, 1. What does "laboratory working days" mean? CORRECT ANSWERS Days required to
complete cast
1. What advantages do glass ionomers have for core buildups compared with
amalgam? CORRECT ANSWERS Provide better adhesion
Provide ease of placement
Release fluoride after setting
1. Which description best describes the double pour method of pouring dental models
with gypsum? CORRECT ANSWERS The anatomical portion of the impression is
poured. A second mix of the gypsum is mixed and used to form the base for the model
1. When mixing dental cement which factor contribute to dispensing the powder first and
the liquid second? CORRECT ANSWERS Humidity
Room temperature
Which type of material is used to create a mouth guard on a vacuum former?
CORRECT ANSWERS Heavier gauge plastic that does not require a spacer but does
require a handle
1. Which characteristics describe acrylic teeth? CORRECT ANSWERS Higher wear
tendency
Higher susceptibility to staining
1. Which characteristics best describe a maxillary dental cast trimmed for a case
presentation using a geometric standard? CORRECT ANSWERS Trimmed anterior cuts
from midline canine to midline
The base of the cast trimmed to be parallel with the occlusal plane
Trimmed sides of the cast parallel to the centre of the occlusal ridges
The heels of the cast trimmed to be perpendicular with the midpalate raphe
1. Which application is constructed with a rigid and heavy gauge vacuum former
thermoplastic resin that requires a space and a handle CORRECT ANSWERS
Impression tray
1. Which patient situation indicates a need to prescribe a full denture CORRECT
ANSWERS Totally edentulous
Refuses alternative treatment options
Remaining teeth cannot support partial dentures
1. Which cement creates a thin film layer necessary for accurate cementation of
castings? CORRECT ANSWERS Zinc phosphate type 1
1. For which patient will a dentist most likely place a composite resin restoration?
CORRECT ANSWERS Have congenital surface abnormalities
Require class 111 restorative restorations
