Dental Materials Final Exam Questions
And Answers | Verified
Since 2005, the American Dental Association (ADA) Seal of Acceptance is awarded to
_______ products.
a. neither professional nor consumer
b. professional but not consumer
c. both professional and consumer
d. consumer but not professional CORRECT ANSWERS d. consumer but not
professional
Which. of the following restorative techniques was first introduced in 1955?
a. Acid-etch technique
b. Synthetic resins for denture bases
c. Cohesive gold foil
d. Cast gold inlays CORRECT ANSWERS a. Acid-etch technique
What is the thermal conductivity of composite resin?
a. Similar to tooth structure
b. Lower than tooth structure
c. Similar to metal restorations
d. Does not conduct temperature CORRECT ANSWERS a. Similar to tooth structure
_______ force is applied when two surfaces slide against each other in opposite
directions.
a. Tensile
b. Shearing
c. Axial
d. Compressive CORRECT ANSWERS b. Shearing
Stress is the amount of force exerted from within an object, and _______ is the amount
of change that the force has produced.
a. strain
b. chemical bonding
c. tension
d. compression CORRECT ANSWERS a. strain
The coefficient of thermal expansion is a measurement of:
a. change in wettability related to temperature
b. change in strength related to temperature
c. change in elasticity related to temperature
d. change in shape related to temperature CORRECT ANSWERS d. change in shape
related to temperature
,Dual set materials utilize ______ setting reactions.
a. both light-activated and chemical
b. chemical setting but not light-activated
c. neither light-activated nor chemical
d. light-activated but not chemical CORRECT ANSWERS a. both light-activated and
chemical
There is a small space that exists between the tooth and the restoration known as the
"interface". It is inevitable that _____ will occur when the tooth or the restoration
expands and contracts.
a. galvanic shock
b. microleakage
c. creep
d. wettability CORRECT ANSWERS b. microleakage
If you have two different metals opposing each other in the oral cavity and add saliva,
the patient may experience discomfort that might resemble a slight electrical shock
followed by pain. This would be termed:
a. ultimate strength
b. proportional limit
c. galvanism
d. toughness CORRECT ANSWERS c. galvanism
Which of the following characteristic is directly related to the flow of a material?
a. viscosity
b. elasticity
c. compression
d. hardness CORRECT ANSWERS a. viscosity
A patient with a crown on tooth #5 is having hot and cold sensitivity. The dentist notices
that there has been substantial loss of cement at the margins and suspects that it is
leaking. Which property or characteristic of the cement best explains the reason for the
loss of cement?
a. low elastic limit
b. solubility in oral fluids
c. high thermal conductivity
d. low compressive strength CORRECT ANSWERS solubility in oral fluids
Which of the following would be considered a good characteristic of a dental impression
material?
a. soluble
b. thermal conductivity
c. toughness
d. elasticity CORRECT ANSWERS d. elasticity
There are three key factors in the color of teeth, they are:
, a. chroma, transparent, hue
b. hue, chroma, vitality
c. opaque, translucent, value
d. value, hue, chroma CORRECT ANSWERS d. value, hue, chroma
Which of the following is not a category on an SDS?
a. personal protective equipment
b. health
c. reactivity
d. mixing instructions
e. flammability CORRECT ANSWERS d. mixing instructions
What would a mercury spill kit include?
a. absorbent powder
b. vinyl gloves
c. 2 x 2 gauze
d. a special brush CORRECT ANSWERS a. absorbent powder
Who does the delivery of dental materials most often fall to?
a. the dentist
b. the dental assistant
c. the dental hygienist
d. the dental laboratory technician CORRECT ANSWERS b. the dental assistant
The first acceptable amalgam formula was developed by ______ in 1895.
a. Dr. William Taggart
b. Dr. Frederick McKay
c. Pierre Fuchard
d. G. V. Black CORRECT ANSWERS d. G. V. Black
What is today's approach to dental care referred to as?
a. Evidence-based dentistry
b. Comprehensive care
c. Individualized care
d. Science-based dentistry CORRECT ANSWERS a. Evidence-based dentistry
In history, the earliest recorded mention of restorative dentistry occurs when?
a. 600 BC
b. 1200 AD
c. 1700 AD
d. 2500 BC CORRECT ANSWERS a. 600 BC
Silver paste was first mentioned as a restorative material for the teeth by the:
a. Chinese
b. French
c. Romans
And Answers | Verified
Since 2005, the American Dental Association (ADA) Seal of Acceptance is awarded to
_______ products.
a. neither professional nor consumer
b. professional but not consumer
c. both professional and consumer
d. consumer but not professional CORRECT ANSWERS d. consumer but not
professional
Which. of the following restorative techniques was first introduced in 1955?
a. Acid-etch technique
b. Synthetic resins for denture bases
c. Cohesive gold foil
d. Cast gold inlays CORRECT ANSWERS a. Acid-etch technique
What is the thermal conductivity of composite resin?
a. Similar to tooth structure
b. Lower than tooth structure
c. Similar to metal restorations
d. Does not conduct temperature CORRECT ANSWERS a. Similar to tooth structure
_______ force is applied when two surfaces slide against each other in opposite
directions.
a. Tensile
b. Shearing
c. Axial
d. Compressive CORRECT ANSWERS b. Shearing
Stress is the amount of force exerted from within an object, and _______ is the amount
of change that the force has produced.
a. strain
b. chemical bonding
c. tension
d. compression CORRECT ANSWERS a. strain
The coefficient of thermal expansion is a measurement of:
a. change in wettability related to temperature
b. change in strength related to temperature
c. change in elasticity related to temperature
d. change in shape related to temperature CORRECT ANSWERS d. change in shape
related to temperature
,Dual set materials utilize ______ setting reactions.
a. both light-activated and chemical
b. chemical setting but not light-activated
c. neither light-activated nor chemical
d. light-activated but not chemical CORRECT ANSWERS a. both light-activated and
chemical
There is a small space that exists between the tooth and the restoration known as the
"interface". It is inevitable that _____ will occur when the tooth or the restoration
expands and contracts.
a. galvanic shock
b. microleakage
c. creep
d. wettability CORRECT ANSWERS b. microleakage
If you have two different metals opposing each other in the oral cavity and add saliva,
the patient may experience discomfort that might resemble a slight electrical shock
followed by pain. This would be termed:
a. ultimate strength
b. proportional limit
c. galvanism
d. toughness CORRECT ANSWERS c. galvanism
Which of the following characteristic is directly related to the flow of a material?
a. viscosity
b. elasticity
c. compression
d. hardness CORRECT ANSWERS a. viscosity
A patient with a crown on tooth #5 is having hot and cold sensitivity. The dentist notices
that there has been substantial loss of cement at the margins and suspects that it is
leaking. Which property or characteristic of the cement best explains the reason for the
loss of cement?
a. low elastic limit
b. solubility in oral fluids
c. high thermal conductivity
d. low compressive strength CORRECT ANSWERS solubility in oral fluids
Which of the following would be considered a good characteristic of a dental impression
material?
a. soluble
b. thermal conductivity
c. toughness
d. elasticity CORRECT ANSWERS d. elasticity
There are three key factors in the color of teeth, they are:
, a. chroma, transparent, hue
b. hue, chroma, vitality
c. opaque, translucent, value
d. value, hue, chroma CORRECT ANSWERS d. value, hue, chroma
Which of the following is not a category on an SDS?
a. personal protective equipment
b. health
c. reactivity
d. mixing instructions
e. flammability CORRECT ANSWERS d. mixing instructions
What would a mercury spill kit include?
a. absorbent powder
b. vinyl gloves
c. 2 x 2 gauze
d. a special brush CORRECT ANSWERS a. absorbent powder
Who does the delivery of dental materials most often fall to?
a. the dentist
b. the dental assistant
c. the dental hygienist
d. the dental laboratory technician CORRECT ANSWERS b. the dental assistant
The first acceptable amalgam formula was developed by ______ in 1895.
a. Dr. William Taggart
b. Dr. Frederick McKay
c. Pierre Fuchard
d. G. V. Black CORRECT ANSWERS d. G. V. Black
What is today's approach to dental care referred to as?
a. Evidence-based dentistry
b. Comprehensive care
c. Individualized care
d. Science-based dentistry CORRECT ANSWERS a. Evidence-based dentistry
In history, the earliest recorded mention of restorative dentistry occurs when?
a. 600 BC
b. 1200 AD
c. 1700 AD
d. 2500 BC CORRECT ANSWERS a. 600 BC
Silver paste was first mentioned as a restorative material for the teeth by the:
a. Chinese
b. French
c. Romans
