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