Dental Materials: Clinical Applications (4th
Edition) | Eakle & Bastin Latest Test Bank 2026 |
Frequently Tested Questions, Accurate Answers &
Smart Revision Guide
Until 1970, which of the following groups of dental auxiliaries were allowed to perform
intraoral functions in all states?
Which of the following is not a classification of dental materials?
Biological
The first acceptable amalgam formula was developed by _____ in 1895.
G.V. Black
What is today's approach to dental care referred to as?
Evidence-based dentistry
What is Dr. Fredrick McKay credited with?
Noting dental fluorosis in Colorado Springs
Since 2005, the American Dental Association (ADA) Seal of Acceptance is awarded to _____
products.
Consumer but not professional
Dental materials considered devices, as well as ever-the-counter products sold to the public,
are subject to control and regulation of the ______ Center for Devices and Radiological
Health.
Food and Drug Administration
Normal masticatory forces on the occlusal surfaces of molar teeth can increase to as much as
_____ pounds per square inch on a cusp tip.
,28,000
______ force is applied when two surfaces slide against each other in opposite directions.
Shearing
Stress is the amount of force exerted from within an abject, and ______ is the amount of
change that the force has produced
Strain
Which of the following statements is CORRECT about fatigue failure?
It occurs as the result of microscopic flaws that grow over time.
The normal resting pH of saliva ranges from 6.2 to _____, which is neutral.
7
The straining of resins and acrylics from repeated exposure to coffee, tea, and other dyed
beverages is due to:
Water sorption
Which of the following is TRUE of galvanism?
Galvanic stimulation will decrease with time as oxides form on the surface of the metal.
What could excessive expansion of a restorative material result in?
Fracture of cusps
What is percolation?
The repeated shrinkage and expansion of the restoration during ingestion of cold and hot fluids
that can allow the ingress of bacteria and oral fluids and may lead to recurrent caries, staining,
and pupal irritation.
Which of the following is the BEST thermal conductor?
Gold
Which of the following restorative materials has a coefficient of thermal expansion and
thermal conductivity closest to enamel?
Porcelain
Which of the following statements is true for the property of wetting as related to dental
materials?
,A thin film of dental cement is desirable to cement crowns.
Micro leakage into the interface between tooth structure and restorative material is
responsible for much of the _____ observed following tooth restoration.
1,2,3
Some materials give off heat when mixed. What is this called?
exothermic reaction
Which term describes a materials resistance to flow (how thin/thick a material is)?
Viscosity
Which type of bond occurs when two atoms share electrons in their outer shell, creating full
shells for both?
Covalent bond
Which of the following forms of matter has/have both shape and volume?
1
Which of the following is the hardest material?
Enamel of a tooth
Which of the following are considered to be therapeutic dental materials?
Medicated bases and topical treatments for periodontal disease
Which of the following is an example if a direct restorative material?
Silver dental amalgam restoration
Dental stone begins with _____ components.
Water and powder
______ time is the time permitted to manipulate the material in the mouth.
working
Dual set materials utilize _____ setting reactions.
both light-activated and chemical
In general, _______ temperature and ________ humidity will accelerate the reaction of the
material.
, high, high
What is the maximum amount of stress a material can take before breaking?
ultimate strength
Metals that can withstand dimensional change without breaking are:
ductile
What is the measure of the weight of a material as compared with its volume?
Density
A ______ material will flow more easily under mechanical pressure.
thixotropic
Which of the following would be considered an indirect placement restorative material?
gold
Who has the responsibility of assessing hazardous chemicals and then passing the
information to consumers?
Chemical manufacturers
Acute chemical toxicity results from _____ levels of exposure over a _____ period of time.
high, short
Which of the following is essential to prevent severe injury if phosphoric, hydrofluoric, or
hydrochloric acid is splashed on the skin, eyes, or clothing during manipulation of various
dental materials?
Flushing with water
If eyes are exposed to acids used during manipulation of various dental materials, how long is
it recommended for the exposed individual to use the nearest eye wash station and flush the
eyes with water?
15 minutes
Which part of the chemical hazard communication program must describe how chemicals are
handled in the workplace?
Written program
What does SDS stand for?
Edition) | Eakle & Bastin Latest Test Bank 2026 |
Frequently Tested Questions, Accurate Answers &
Smart Revision Guide
Until 1970, which of the following groups of dental auxiliaries were allowed to perform
intraoral functions in all states?
Which of the following is not a classification of dental materials?
Biological
The first acceptable amalgam formula was developed by _____ in 1895.
G.V. Black
What is today's approach to dental care referred to as?
Evidence-based dentistry
What is Dr. Fredrick McKay credited with?
Noting dental fluorosis in Colorado Springs
Since 2005, the American Dental Association (ADA) Seal of Acceptance is awarded to _____
products.
Consumer but not professional
Dental materials considered devices, as well as ever-the-counter products sold to the public,
are subject to control and regulation of the ______ Center for Devices and Radiological
Health.
Food and Drug Administration
Normal masticatory forces on the occlusal surfaces of molar teeth can increase to as much as
_____ pounds per square inch on a cusp tip.
,28,000
______ force is applied when two surfaces slide against each other in opposite directions.
Shearing
Stress is the amount of force exerted from within an abject, and ______ is the amount of
change that the force has produced
Strain
Which of the following statements is CORRECT about fatigue failure?
It occurs as the result of microscopic flaws that grow over time.
The normal resting pH of saliva ranges from 6.2 to _____, which is neutral.
7
The straining of resins and acrylics from repeated exposure to coffee, tea, and other dyed
beverages is due to:
Water sorption
Which of the following is TRUE of galvanism?
Galvanic stimulation will decrease with time as oxides form on the surface of the metal.
What could excessive expansion of a restorative material result in?
Fracture of cusps
What is percolation?
The repeated shrinkage and expansion of the restoration during ingestion of cold and hot fluids
that can allow the ingress of bacteria and oral fluids and may lead to recurrent caries, staining,
and pupal irritation.
Which of the following is the BEST thermal conductor?
Gold
Which of the following restorative materials has a coefficient of thermal expansion and
thermal conductivity closest to enamel?
Porcelain
Which of the following statements is true for the property of wetting as related to dental
materials?
,A thin film of dental cement is desirable to cement crowns.
Micro leakage into the interface between tooth structure and restorative material is
responsible for much of the _____ observed following tooth restoration.
1,2,3
Some materials give off heat when mixed. What is this called?
exothermic reaction
Which term describes a materials resistance to flow (how thin/thick a material is)?
Viscosity
Which type of bond occurs when two atoms share electrons in their outer shell, creating full
shells for both?
Covalent bond
Which of the following forms of matter has/have both shape and volume?
1
Which of the following is the hardest material?
Enamel of a tooth
Which of the following are considered to be therapeutic dental materials?
Medicated bases and topical treatments for periodontal disease
Which of the following is an example if a direct restorative material?
Silver dental amalgam restoration
Dental stone begins with _____ components.
Water and powder
______ time is the time permitted to manipulate the material in the mouth.
working
Dual set materials utilize _____ setting reactions.
both light-activated and chemical
In general, _______ temperature and ________ humidity will accelerate the reaction of the
material.
, high, high
What is the maximum amount of stress a material can take before breaking?
ultimate strength
Metals that can withstand dimensional change without breaking are:
ductile
What is the measure of the weight of a material as compared with its volume?
Density
A ______ material will flow more easily under mechanical pressure.
thixotropic
Which of the following would be considered an indirect placement restorative material?
gold
Who has the responsibility of assessing hazardous chemicals and then passing the
information to consumers?
Chemical manufacturers
Acute chemical toxicity results from _____ levels of exposure over a _____ period of time.
high, short
Which of the following is essential to prevent severe injury if phosphoric, hydrofluoric, or
hydrochloric acid is splashed on the skin, eyes, or clothing during manipulation of various
dental materials?
Flushing with water
If eyes are exposed to acids used during manipulation of various dental materials, how long is
it recommended for the exposed individual to use the nearest eye wash station and flush the
eyes with water?
15 minutes
Which part of the chemical hazard communication program must describe how chemicals are
handled in the workplace?
Written program
What does SDS stand for?
