DH 104 Module 1 Knowledge Check || All Answered Correctly.
T/F: The dental auxillary is responsible for dental materials in the oral cavity correct answers
True
T/F: Once used as a paste, silver has been used as a restorative material since the 7th century.
correct answers True
What is not eligible for the American Dental Association (ADA) Seal of Acceptance? correct
answers Amalgam
T/F: How a dental material interacts with the tissues of the face and mouth is not as important as
the function and esthetics of a material. Knowledge of dental materials includes principles of
engineering, physics, chemistry, and biology. correct answers The first statement is false; the
second statement is true.
Dental materials manufacturers voluntarily submit their products to which of the following for
stringent testing and verification of product claims? correct answers ADA
T/F: An allied oral health practitioner must know the selection of a particular material in a given
situation and how to manipulate it. It is solely the dentist's responsibility to educate the patient on
materials used in his or her treatment plan. correct answers The first statement is true; the second
statement is false.
T/F: As a dental auxiliary, it is not your responsibility to understand how the published scientific
literature is analysed to ensure the clinical benefits of a material. correct answers False
T/F: The dental therapist is an auxiliary who provides preventive and restorative care under the
supervision of a dentist. The scope of what this auxiliary can perform is regulated by the ADA.
correct answers The first statement is true; the second statement is false.
Which entity evaluates new dental materials before they can be used in the dental office or sold
in the United States? correct answers FDA
Humans have suffered from dental disease for millennia. However, the first evidence of
restorative dentistry appeared when? correct answers 600 BCE
T/F: The ideal dental material does not exist. correct answers True
T/F: Dental cements began to be used in the mid-19th century and were zinc oxide with
phosphoric acid. correct answers True
According to the U.S. Food and Drug Administration (FDA) Medical Device Amendments of
1976, dental materials such as bone grafts fall into which category? correct answers Class III
, T/F: Scientific evidence replaces clinical expertise in evidence-based dentistry. correct answers
False
T/F: The Food and Drug Act of 1906 conferred regulatory authority to the FDA and created
classifications of medical (dental) devices on the basis of the risk to the public. correct answers
False
For a bonding agent to have good wettability, it must have a: correct answers low contact angle
and low viscosity
Tactile evaluation of the tooth surface can be a helpful means of clinical assessment. correct
answers Tactile evaluation
T/F: The dental auxiliary does not need to understand how biomaterials can affect a patient
postoperatively because he or she is not placing the material. Restorative materials are expected
to remain in contact with oral tissues for short periods of time. correct answers Both statements
are false.
You are mixing materials for placement in a patient's mouth. You must be careful because the
materials you are mixing give off heat when combined. This is called a/an
____________________. correct answers exothermic reaction
The term used to describe the change in volume of a material in relation to a change in
temperature is: correct answers Coefficient of thermal expansion
The electrical current between dissimilar metals that can cause corrosion in dental amalgam is
called: correct answers galvanism.
T/F: Metals are poor thermal conductors. Enamel and dentin are excellent thermal conductors.
correct answers False
The amount of change that a force has applied to a material is called: correct answers Strain
T/F: The normal process of chewing rarely involves one type of stress exerted on a material or a
tooth. correct answers True
A fracture that results over a long period of time when a dental material is subjected to repeated
stresses is called: correct answers Fatigue
The biting force applied in opposite directions that stretches a material is _________ force, while
the biting force that is a combination of compressive and tensile forces seen mostly during
mastication is _______________. correct answers tensile, torsion
T/F: Mechanical retention is the adhesion of a dental material to a bonding material placed on the
tooth structure. The use of this bonding material requires less tooth structure to be removed.
correct answers The first statement is false; the second statement is true.
T/F: The dental auxillary is responsible for dental materials in the oral cavity correct answers
True
T/F: Once used as a paste, silver has been used as a restorative material since the 7th century.
correct answers True
What is not eligible for the American Dental Association (ADA) Seal of Acceptance? correct
answers Amalgam
T/F: How a dental material interacts with the tissues of the face and mouth is not as important as
the function and esthetics of a material. Knowledge of dental materials includes principles of
engineering, physics, chemistry, and biology. correct answers The first statement is false; the
second statement is true.
Dental materials manufacturers voluntarily submit their products to which of the following for
stringent testing and verification of product claims? correct answers ADA
T/F: An allied oral health practitioner must know the selection of a particular material in a given
situation and how to manipulate it. It is solely the dentist's responsibility to educate the patient on
materials used in his or her treatment plan. correct answers The first statement is true; the second
statement is false.
T/F: As a dental auxiliary, it is not your responsibility to understand how the published scientific
literature is analysed to ensure the clinical benefits of a material. correct answers False
T/F: The dental therapist is an auxiliary who provides preventive and restorative care under the
supervision of a dentist. The scope of what this auxiliary can perform is regulated by the ADA.
correct answers The first statement is true; the second statement is false.
Which entity evaluates new dental materials before they can be used in the dental office or sold
in the United States? correct answers FDA
Humans have suffered from dental disease for millennia. However, the first evidence of
restorative dentistry appeared when? correct answers 600 BCE
T/F: The ideal dental material does not exist. correct answers True
T/F: Dental cements began to be used in the mid-19th century and were zinc oxide with
phosphoric acid. correct answers True
According to the U.S. Food and Drug Administration (FDA) Medical Device Amendments of
1976, dental materials such as bone grafts fall into which category? correct answers Class III
, T/F: Scientific evidence replaces clinical expertise in evidence-based dentistry. correct answers
False
T/F: The Food and Drug Act of 1906 conferred regulatory authority to the FDA and created
classifications of medical (dental) devices on the basis of the risk to the public. correct answers
False
For a bonding agent to have good wettability, it must have a: correct answers low contact angle
and low viscosity
Tactile evaluation of the tooth surface can be a helpful means of clinical assessment. correct
answers Tactile evaluation
T/F: The dental auxiliary does not need to understand how biomaterials can affect a patient
postoperatively because he or she is not placing the material. Restorative materials are expected
to remain in contact with oral tissues for short periods of time. correct answers Both statements
are false.
You are mixing materials for placement in a patient's mouth. You must be careful because the
materials you are mixing give off heat when combined. This is called a/an
____________________. correct answers exothermic reaction
The term used to describe the change in volume of a material in relation to a change in
temperature is: correct answers Coefficient of thermal expansion
The electrical current between dissimilar metals that can cause corrosion in dental amalgam is
called: correct answers galvanism.
T/F: Metals are poor thermal conductors. Enamel and dentin are excellent thermal conductors.
correct answers False
The amount of change that a force has applied to a material is called: correct answers Strain
T/F: The normal process of chewing rarely involves one type of stress exerted on a material or a
tooth. correct answers True
A fracture that results over a long period of time when a dental material is subjected to repeated
stresses is called: correct answers Fatigue
The biting force applied in opposite directions that stretches a material is _________ force, while
the biting force that is a combination of compressive and tensile forces seen mostly during
mastication is _______________. correct answers tensile, torsion
T/F: Mechanical retention is the adhesion of a dental material to a bonding material placed on the
tooth structure. The use of this bonding material requires less tooth structure to be removed.
correct answers The first statement is false; the second statement is true.
