AAPD QE BOARD EXAM QUESTIONS AND ANSWERS VERIFIED AND WELL DETAILED ANSWERS

AAPD QE BOARD EXAM QUESTIONS AND
ANSWERS VERIFIED AND WELL
DETAILED ANSWERS
What layer do neural crest cells develop from? - CORRECT ANSWER -
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Ectoderm


At what embryonic age does the dental lamina begin to develop? - CORRECT
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ANSWER - 6 weeks
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What are the three components of the tooth bud? - CORRECT ANSWER -
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Enamel Organ ||




Dental papilla
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Dental sac
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What are the three morphologic stages of a developing tooth bud? - CORRECT
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ANSWER - Bud stage
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Cap stage |




Bell stage
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During the bell stage invagination ofthe epitheliumoccurs, which layer is essential
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for enamel production? - CORRECT ANSWER - Stratum intermedium
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Which cells does the stellate reticulum support and protect? - CORRECT
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ANSWER - Ameloblasts
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What do remnants of Hertwig's epithelial root sheath persist as? - CORRECT
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ANSWER - Rests of Malassez
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,What is the origin of the dental papilla? - CORRECT ANSWER - Neural crest
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cells
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What does the dental papilla differentiate in to? - CORRECT ANSWER - Dentin
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and primordium of pulp
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What are enamel pearls? - CORRECT ANSWER - Cells of epithelial root sheath
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that remain attached to dentin. Differentiate into ameloblasts and produce enamel
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Whatare the 7 steps (in order) of histophyisologicaldifferentiation of a tooth bud?
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- CORRECT ANSWER - Initiation
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|| Proliferation
Histodifferentiation
Morphodifferentiation
Apposition
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Mineralization
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Maturation
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During which stage of tooth development may problems that lead to anomalies of
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tooth number occur? - CORRECT ANSWER - Initiation
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Which three stages of tooth development encompasses the bud, cap, early bell and
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late bell? - CORRECT ANSWER - Proliferation
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Histodifferentiation
Morphodifferentiation
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,Disruptions of proliferation may result in what type of tooth anomalies? (4) -
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CORRECT ANSWER - Size
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Proportion
Numbers
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Twinning
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Which stage of tooth development may lead to anomalies of the enamel, dentin,
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and cementum? - CORRECT ANSWER - Morphodifferentiation
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What is the incidence of hyperdontia?Males vs females? - CORRECTANSWER
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- 0.3 - 3%
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Males 2:1 females || ||




Is hyperdontia more common in maxilla or mandible? More common in primary
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teeth or permanent teeth? - CORRECT ANSWER - Maxilla 90%
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Permanent dentition 5x more common that primary || || || || || ||




Which permanent teeth are most frequently missing? List in order from most to
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least common - CORRECT ANSWER - Third molars
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Mandibular second pre molars || || ||




|| Maxillary lateral incisors || ||




|| Maxillary second pre molars || || ||




Name 9 syndromesthat may be associated with supernumerary teeth - CORRECT
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ANSWER - Apert
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, Cleidocranial dysplasia ||




Gardner syndrome
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Crouzon syndrome
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Sturge Weber syndrome
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Orofacialdigital Syndrome I || ||




Hallermann-Strieff Syndrome - A
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Cleft lip and palate
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Down syndrome
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Which syndrome is associated with shovel shaped incisors?
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A. Sturge Weber Syndrome | ||




B. Cleidocranial dysplasia |




C. Apert syndrome ||




D. Hallermann Strieff Syndrome-A- CORRECTANSWER- C. Apert Syndrome
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Narrow high palate|| ||




Cleft of soft palate
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Delayed or ectopic eruption
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Shovel shaped incisors
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Hypoplastic midface
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Which syndrome is associated with osteomas of the jaw?
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