EFDA Practice Questions With All
Correct Updated Answers.
In the Federation Dentaire International System for numbering, the first number represents a
_________, while the second number represents a _________. - Answer quadrant, tooth
What is the visible portion of the anatomical crown known as? - Answer the clinical crown
The area where the roots divide - Answer furcation
The point or area where approximating teeth in the same arch touch or meet each other is
referred to as the ________. - Answer contact area
Where are the TWO purposes of contact areas? - Answer -to keep food from packing between
the teeth
-help stabilize the dental arches
Coronal to the actual division into two or more roots is a concavity that extends to or nearly to
the CEJ. This concavity is called - Answer the furrow
What is the HARDEST tissue in the body? - Answer enamel
What cells form enamel? - Answer ameloblasts
The bulk of the tooth is made up of - Answer dentin
In permanent teeth, the process of enamel formation is completed about ___ years before
eruption. - Answer 3
What is the composition of enamel? - Answer 95% inorganic matter, 5% organic matter and
water
What is the SECOND hardest material in the body? - Answer dentin
,The three major types of dentin - Answer primary, secondary, reparative
What type of dentin is a DEFENSE reaction to an area of injury? - Answer reparative dentin
What has the HIGHEST fluoride content of all the materialized tissue? - Answer cementum
The two types of cementum - Answer acellular and cellular
What type of cementum ACTIVELY produces new layers of cementum throughout the life of the
tooth? - Answer cellular
What teeth have the cusp of Carabelli? - Answer maxillary first molars
The ridge formed by the union of two triangular ridges - Answer transverse ridge
The spillway provides an escape for food from the _______ surface during the mastication
(chewing) process. - Answer occlusal
The uncut tooth structure adjacent to the cavity prep - Answer cavosurface
line angle - Answer two walls
point angle - Answer three walls
A thin soft tissue that is loosely attached to the underlying bone - Answer alveolar mucosa
T or F
Undue stress continually placed on the body can contribute to lower back pain, circulatory
problems, muscle aches, and tension - Answer True
When seated, the thighs should be _______ to the floor - Answer parallel
, The back of the patient chair is raised until its angle to the floor is ______ degrees - Answer
25-45
The three basic parts of an instrument are - Answer the working end, shank, and handle
When seated, the lower legs should be _______ to the floor - Answer perpendicular
If the operator needs to lean forward, it should be done by bending at the - Answer hips or
neck
What will increase visibility to the lingual surfaces of the mandibular anterior teeth? - Answer
having the patient tilt their chin down
The flat, smooth working end of a condenser is referred to as - Answer the nib
The FOUR basic principles of instrument use - Answer grasp, finger rest, adaption, activation
What grasp offers the GREATEST control of instrumentation during dental procedures in the oral
cavity? - Answer modified pen grasp
The relationship between the working end of the instrument and the tooth surface - Answer
adaption
The point of support or rest from which the hand moves to activate the instrument and obtain
the best position or adaption - Answer finger rest or fulcrum
The movement of the instrument - Answer activation
Most cavers are designed to _____ material rather than push it - Answer pull
What are known as the OLDEST method used for retraction and dryness and are recommended
for isolation during SHORT procedures? - Answer cotton rolls
Correct Updated Answers.
In the Federation Dentaire International System for numbering, the first number represents a
_________, while the second number represents a _________. - Answer quadrant, tooth
What is the visible portion of the anatomical crown known as? - Answer the clinical crown
The area where the roots divide - Answer furcation
The point or area where approximating teeth in the same arch touch or meet each other is
referred to as the ________. - Answer contact area
Where are the TWO purposes of contact areas? - Answer -to keep food from packing between
the teeth
-help stabilize the dental arches
Coronal to the actual division into two or more roots is a concavity that extends to or nearly to
the CEJ. This concavity is called - Answer the furrow
What is the HARDEST tissue in the body? - Answer enamel
What cells form enamel? - Answer ameloblasts
The bulk of the tooth is made up of - Answer dentin
In permanent teeth, the process of enamel formation is completed about ___ years before
eruption. - Answer 3
What is the composition of enamel? - Answer 95% inorganic matter, 5% organic matter and
water
What is the SECOND hardest material in the body? - Answer dentin
,The three major types of dentin - Answer primary, secondary, reparative
What type of dentin is a DEFENSE reaction to an area of injury? - Answer reparative dentin
What has the HIGHEST fluoride content of all the materialized tissue? - Answer cementum
The two types of cementum - Answer acellular and cellular
What type of cementum ACTIVELY produces new layers of cementum throughout the life of the
tooth? - Answer cellular
What teeth have the cusp of Carabelli? - Answer maxillary first molars
The ridge formed by the union of two triangular ridges - Answer transverse ridge
The spillway provides an escape for food from the _______ surface during the mastication
(chewing) process. - Answer occlusal
The uncut tooth structure adjacent to the cavity prep - Answer cavosurface
line angle - Answer two walls
point angle - Answer three walls
A thin soft tissue that is loosely attached to the underlying bone - Answer alveolar mucosa
T or F
Undue stress continually placed on the body can contribute to lower back pain, circulatory
problems, muscle aches, and tension - Answer True
When seated, the thighs should be _______ to the floor - Answer parallel
, The back of the patient chair is raised until its angle to the floor is ______ degrees - Answer
25-45
The three basic parts of an instrument are - Answer the working end, shank, and handle
When seated, the lower legs should be _______ to the floor - Answer perpendicular
If the operator needs to lean forward, it should be done by bending at the - Answer hips or
neck
What will increase visibility to the lingual surfaces of the mandibular anterior teeth? - Answer
having the patient tilt their chin down
The flat, smooth working end of a condenser is referred to as - Answer the nib
The FOUR basic principles of instrument use - Answer grasp, finger rest, adaption, activation
What grasp offers the GREATEST control of instrumentation during dental procedures in the oral
cavity? - Answer modified pen grasp
The relationship between the working end of the instrument and the tooth surface - Answer
adaption
The point of support or rest from which the hand moves to activate the instrument and obtain
the best position or adaption - Answer finger rest or fulcrum
The movement of the instrument - Answer activation
Most cavers are designed to _____ material rather than push it - Answer pull
What are known as the OLDEST method used for retraction and dryness and are recommended
for isolation during SHORT procedures? - Answer cotton rolls
