If the first number of using the FDI system is a 2 what does it denote for the dental
hygienist?
That the tooth is a permanent tooth in quadrant 2
That the tooth is a permanent tooth on the mandibular right side.
That the tooth the second primary tooth in quadrant 6
That the tooth is the second tooth on the mandible
Where are the labial commissures located?
corners of the mouth
upper portion of the lip
lateral borders of the nares
ventral surface of the tongue
Which permanent incisors are the first to erupt?
mandibular centrals
maxillary laterals
mandibular laterals
maxillary centrals
A fault occurring along a developmental groove is known as?
Correct answer:
Fissure
Developmental Depression
Pit
Ridge
When referring to mandibular premolar tooth surfaces, what term may correctly be used to refer
to a facial surface?
palatal
mesial
labial
buccal
This incisal edge does not exist until wear has created a surface labioincisally.
Correct answer:
True
False
,Candice and her mom come to the dental office. Candice’s mom asks, at what age will the
dental hygienist expect to see the permanent maxillary second molar erupt?
ten to eleven years
twelve to thirteen years
six to seven years
eight to nine years
According to the FDI numbering system, tooth number 63 is which tooth in the oral cavity?
the maxillary right primary canine.
the maxillary left primary canine
the maxillary right primary lateral
the maxillary left canine
Which of the following is a possible line angle of an incisor crown?
mesiodistal line angle
mesio-occlusal line angle
distolingual line angle
labiolingual line angle
In the normal dentition, clients will present with how many nonsuccedaneous teeth?
16
14
12
20
If one or more teeth in the mandibular arch are located facially to their maxillary counterparts,
what descriptive word would be used to articulate your clinical findings
openbite
overjet
crossbite
overbite
How many lobes make up an incisor central tooth?
4
2
1
3
, Which permanent teeth are most commonly missing?
Correct answer:
third molars (especially the maxillary)
mandibular first premolars
maxillary lateral incisors
second molars (especially mandibular)
What permanent tooth erupts into the space previously held by the primary first molar?
second premolar
first premolar
second molar
first molar
Odontogenesis refers to the formation of teeth but not the eruption.
True
False
If cementum is exposed, what has happened?
recession
attrition
abrasion
nothing. this is normal
Match the definitions:
The margin connecting the crown of a tooth to the roots
Correct match: CEJ or cementoenamel junction
Three roots
Correct match: Trifurcated
Deep pits and grooves on the surfaces of the teeth
Correct match: fissures
ridge located on your upper central and lateral incisors and on the upper canines on the lingual
surface of the tooth
Correct match: cingulum
Final part of the tooth structure to form
Correct match: roots
hygienist?
That the tooth is a permanent tooth in quadrant 2
That the tooth is a permanent tooth on the mandibular right side.
That the tooth the second primary tooth in quadrant 6
That the tooth is the second tooth on the mandible
Where are the labial commissures located?
corners of the mouth
upper portion of the lip
lateral borders of the nares
ventral surface of the tongue
Which permanent incisors are the first to erupt?
mandibular centrals
maxillary laterals
mandibular laterals
maxillary centrals
A fault occurring along a developmental groove is known as?
Correct answer:
Fissure
Developmental Depression
Pit
Ridge
When referring to mandibular premolar tooth surfaces, what term may correctly be used to refer
to a facial surface?
palatal
mesial
labial
buccal
This incisal edge does not exist until wear has created a surface labioincisally.
Correct answer:
True
False
,Candice and her mom come to the dental office. Candice’s mom asks, at what age will the
dental hygienist expect to see the permanent maxillary second molar erupt?
ten to eleven years
twelve to thirteen years
six to seven years
eight to nine years
According to the FDI numbering system, tooth number 63 is which tooth in the oral cavity?
the maxillary right primary canine.
the maxillary left primary canine
the maxillary right primary lateral
the maxillary left canine
Which of the following is a possible line angle of an incisor crown?
mesiodistal line angle
mesio-occlusal line angle
distolingual line angle
labiolingual line angle
In the normal dentition, clients will present with how many nonsuccedaneous teeth?
16
14
12
20
If one or more teeth in the mandibular arch are located facially to their maxillary counterparts,
what descriptive word would be used to articulate your clinical findings
openbite
overjet
crossbite
overbite
How many lobes make up an incisor central tooth?
4
2
1
3
, Which permanent teeth are most commonly missing?
Correct answer:
third molars (especially the maxillary)
mandibular first premolars
maxillary lateral incisors
second molars (especially mandibular)
What permanent tooth erupts into the space previously held by the primary first molar?
second premolar
first premolar
second molar
first molar
Odontogenesis refers to the formation of teeth but not the eruption.
True
False
If cementum is exposed, what has happened?
recession
attrition
abrasion
nothing. this is normal
Match the definitions:
The margin connecting the crown of a tooth to the roots
Correct match: CEJ or cementoenamel junction
Three roots
Correct match: Trifurcated
Deep pits and grooves on the surfaces of the teeth
Correct match: fissures
ridge located on your upper central and lateral incisors and on the upper canines on the lingual
surface of the tooth
Correct match: cingulum
Final part of the tooth structure to form
Correct match: roots
