EFDA TEST BANK QUESTIONS WITH
VERIFIED ANSWERS FULL REVIEW
●● 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
●● What is the composition of dentin?
Answer: 70% inorganic, 20% organic, 10% water
●● 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
VERIFIED ANSWERS FULL REVIEW
●● 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
●● What is the composition of dentin?
Answer: 70% inorganic, 20% organic, 10% water
●● 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
