AAPD QE Board Exam UPDATED ACTUAL Questions and
CORRECT Answers
What layer do neural crest cells develop Ectoderm
from?
At what embryonic age does the dental 6 weeks
lamina begin to develop?
What are the three components of the tooth Enamel Organ
bud? Dental papilla
Dental sac
What are the three morphologic stages of a Bud stage
developing tooth bud? Cap stage
Bell stage
During the bell stage invagination of the Stratum intermedium
epithelium occurs, which layer is essential
for enamel production?
Which cells does the stellate reticulum Ameloblasts
support and protect?
What do remnants of Hertwig's epithelial Rests of Malassez
root sheath persist as?
What is the origin of the dental papilla? Neural crest cells
What does the dental papilla differentiate in Dentin and primordium of pulp
to?
, What are enamel pearls? Cells of epithelial root sheath that remain attached to dentin.
Differentiate into ameloblasts and produce enamel
What are the 7 steps (in order) of Initiation
histophyisological differentiation of a tooth Proliferation
bud? Histodifferentiation
Morphodifferentiation
Apposition
Mineralization
Maturation
During which stage of tooth development Initiation
may problems that lead to anomalies of
tooth number occur?
Which three stages of tooth development Proliferation
encompasses the bud, cap, early bell and Histodifferentiation
late bell? Morphodifferentiation
Disruptions of proliferation may result in Size
what type of tooth anomalies? (4) Proportion
Numbers
Twinning
Which stage of tooth development may Morphodifferentiation
lead to anomalies of the enamel, dentin, and
cementum?
What is the incidence of hyperdontia? Males 0.3 - 3%
vs females? Males 2:1 females
Is hyperdontia more common in maxilla or Maxilla 90%
mandible? More common in primary teeth Permanent dentition 5x more common that primary
or permanent teeth?
Which permanent teeth are most frequently Third molars
missing? List in order from most to least Mandibular second pre molars
common Maxillary lateral incisors
Maxillary second pre molars
Name 9 syndromes that may be associated Apert
with supernumerary teeth Cleidocranial dysplasia
Gardner syndrome
Crouzon syndrome
Sturge Weber syndrome
Orofacialdigital Syndrome I
Hallermann-Strieff Syndrome - A
Cleft lip and palate
Down syndrome
CORRECT Answers
What layer do neural crest cells develop Ectoderm
from?
At what embryonic age does the dental 6 weeks
lamina begin to develop?
What are the three components of the tooth Enamel Organ
bud? Dental papilla
Dental sac
What are the three morphologic stages of a Bud stage
developing tooth bud? Cap stage
Bell stage
During the bell stage invagination of the Stratum intermedium
epithelium occurs, which layer is essential
for enamel production?
Which cells does the stellate reticulum Ameloblasts
support and protect?
What do remnants of Hertwig's epithelial Rests of Malassez
root sheath persist as?
What is the origin of the dental papilla? Neural crest cells
What does the dental papilla differentiate in Dentin and primordium of pulp
to?
, What are enamel pearls? Cells of epithelial root sheath that remain attached to dentin.
Differentiate into ameloblasts and produce enamel
What are the 7 steps (in order) of Initiation
histophyisological differentiation of a tooth Proliferation
bud? Histodifferentiation
Morphodifferentiation
Apposition
Mineralization
Maturation
During which stage of tooth development Initiation
may problems that lead to anomalies of
tooth number occur?
Which three stages of tooth development Proliferation
encompasses the bud, cap, early bell and Histodifferentiation
late bell? Morphodifferentiation
Disruptions of proliferation may result in Size
what type of tooth anomalies? (4) Proportion
Numbers
Twinning
Which stage of tooth development may Morphodifferentiation
lead to anomalies of the enamel, dentin, and
cementum?
What is the incidence of hyperdontia? Males 0.3 - 3%
vs females? Males 2:1 females
Is hyperdontia more common in maxilla or Maxilla 90%
mandible? More common in primary teeth Permanent dentition 5x more common that primary
or permanent teeth?
Which permanent teeth are most frequently Third molars
missing? List in order from most to least Mandibular second pre molars
common Maxillary lateral incisors
Maxillary second pre molars
Name 9 syndromes that may be associated Apert
with supernumerary teeth Cleidocranial dysplasia
Gardner syndrome
Crouzon syndrome
Sturge Weber syndrome
Orofacialdigital Syndrome I
Hallermann-Strieff Syndrome - A
Cleft lip and palate
Down syndrome
