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AAPD QE Board Exam
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Exam of 38 pages for the course AAPD QE Board at AAPD QE Board (AAPD QE Board Exam)
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AAPD QE BOARD EXAM QUESTIONSAND ANSWERS GRADED A+
What layer do neural crest cells develop from? - Ectoderm
At what embryonic age does the dental lamina begin to develop? - 6 weeks
What are the three components of the tooth bud? - Enamel Organ
Dental papilla
Dental sac
What are the three morphologic stages of a developing tooth bud? - Bud stage
Cap stage
Bell stage
During the bell stage invagination of the epithelium occurs, which layer is essential for enamel
production? - Stratum intermedium
Which cells does the stellate reticulum support and protect? - Ameloblasts
What do remnants of Hertwig's epithelial root sheath persist as? - Rests of Malassez
What is the origin of the dental papilla? - Neural crest cells
What does the dental papilla differentiate in to? - Dentin and primordium of pulp
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 histophyisological differentiation of a tooth bud? - Initiation
Proliferation
Histodifferentiation
Morphodifferentiation
Apposition
Mineralization
Maturation
During which stage of tooth development may problems that lead to anomalies of tooth number occur?
- Initiation
Which three stages of tooth development encompasses the bud, cap, early bell and late bell? -
Proliferation
Histodifferentiation
Morphodifferentiation
Disruptions of proliferation may result in what type of tooth anomalies? (4) - Size
Proportion
Numbers
Twinning
Which stage of tooth development may lead to anomalies of the enamel, dentin, and cementum? -
Morphodifferentiation
What is the incidence of hyperdontia? Males vs females? - 0.3 - 3%
Males 2:1 females
Is hyperdontia more common in maxilla or mandible? More common in primary teeth or permanent
teeth? - Maxilla 90%
,Permanent dentition 5x more common that primary
Which permanent teeth are most frequently missing? List in order from most to least common - Third
molars
Mandibular second pre molars
Maxillary lateral incisors
Maxillary second pre molars
Name 9 syndromes that may be associated with supernumerary teeth - 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 - 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?
A. Orofiaciodigital Syndrome I
B. Apert Syndrome
C. Crouzon Syndrome
D. Gardner Syndrome - D. Gardner Syndrome
Delayed eruption
Supernum teeth
Osteomas of the jaw
Agensis of third molars is associated with agenesis of which permanent tooth? - Maxillary lateral - either
one or both
What is the inheritance pattern for non syndromic hypodontia? - Autosomal dominant
Which teeth (from most to least) commonly present as microdontia? - Lateral incisors
Second pre molars
Third molars
Which tooth anomaly is characterized by: abortive attempt by single tooth to divide; bifid crown with
single root and pulp chamber? - Gemination
Which tooth anomaly is characterized by: complete cleavage of single bud results in supernum mirror
image tooth? - Twinning
Which race is fusion of teeth most commonly seen? - Japenese (5%)
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