ABPD EXAM REVIEW GUIDE
QUESTIONS AND ANSWERS
Vitamin deficiency in A,C,D, calcium, phosphate, fluoride can all result in what tooth
defect? - ANSWER-enamel hypoplasia
What tooth defect can be seen in syphils, rubella, Rh incompatibilit - ANSWER-
Enamel hypoplsia
DD I shows dysplasia in what kind of dentin? - ANSWER-Radicular
Common findings in DD I - ANSWER-short blunted roots
PCO
PARL multiple
primary more affected
DDII common finidngs - ANSWER-thissle pulp
pulp stones
What dentin is affected in DDII - ANSWER-Coronal and radicular
In what syndrome do you see deficient cellular cementum? - ANSWER-Cleidogranial
dysplasia
What are the two theories of eruption supported by animal studies? - ANSWER-
Periodontal ligament traction
CT proliferation at apex
In the periodontal ligament traction theory of eruption whtat is an essentail part for
the eruptive process? - ANSWER-Dental follice
Is there an effect on nutrition and eruption? low birth weight? - ANSWER-Nutirtion -
NO
LBW - yes! delayed
What syndrome has high incidence of natal/neonatal teeth - ANSWER-
Chondroceteodermal dysplasia
Delyaed exfoliation and perm eruption seen in what condiitions? - ANSWER-Vitamin
D resistant rickets
endocrine disorders
CP
celiac disease
Prematurity
idiopathic failure of eruption
diabetes
,Type 1 vs type 2 failure of eruption - ANSWER-1: failure around the same time for all
teeth affected and then ALL teeth distal effected
2: gradient over time, some distal teeth affected
Familial failure to erupted associated with what gene? - ANSWER-PTH1R
Disease of bone (2) that result in premature exfoliation - ANSWER-Vitamin D
resistant rickets
Fibrous dysplaisa
Order of ankylosed teeth primary - ANSWER-Mand D
Mand E
Max D
Max E
Incidence of both fusion and gemination is? AD/AR/Non hereditary? - ANSWER-
0.5%
AD
Bell - Histodifferentiation defects -->? - ANSWER-Amelogenesis Imperfecta
Dentinogenesis Imperfecta
AI Type I vs II - AD? AR? - ANSWER-Type I - AD
Type II - AR
Advance Bell - Morphogenesis defects --> ? - ANSWER-Dens in dente
Dens Evaginatus
Taurodontism
Dilaceration
(Defects in form/shape)
Most common tooth for dens in dente - ANSWER-Maxillary permanent lateral incisor
Most common tooth for dens evaginatus - ANSWER-Common in Max incisors
Laterals 50%
Centrals 30%
(Most in PERM)
Dens evaginatus associated with what syndromes? - ANSWER-Sturge webber
Rubinstein - Taybi Syndrome
Syndromes associated with Taurodontism? - ANSWER-Klienfelter's
Ectodermal dysplasia
Down syndrome
Hypotrichosis
Oro-facial-Digital Syndrome
Amelogenesis Imperfecta
,Lit: Are missing teeth and/or supernumary teeth assocaited with taurodontism? -
ANSWER-Missing teeth ARE related
Supernumary are NOT related
Dilaceration is associated with what syndrome? - ANSWER-Congenital Ichthyosis
Apposition defects? - ANSWER-Dentin Dysplasia I
Dentin Dysplasia II
Regional odontodysplasia
DDI/DDII/Regional odontodysplasia - AD/AR/Non hereditary - ANSWER-DDI - AD
DDII - AD
Regional Odonto. - Non-Hereditary
Regional Odontodysplasia is associated with what? - ANSWER-RH factor
incompatibility
Hypophosphatasia
Ectodermal Dysplasia
Defects in Calcification/Mineralization - ANSWER-AI Type III (hypocalcified)
Flurosis
Defect in Proliferation: - ANSWER-Macro
micro
fusion
gemination
Defect in Histodifferentiation - ANSWER-AI
DI
Defect in morphodifferentiation - ANSWER-Dens indente/evag/taurodontism/dilac
Defect in apposiition? - ANSWER-Dentin dysplasia
Regional odontodysplasia
Dentin dysplasia results from a defect in _______ - ANSWER-Apposition
Regional odontodysplasia results from a defect in _______ - ANSWER-apposition
Dens invaginatus/evag results from a defect in _______ - ANSWER-
morphodifferentiation
taurodontism results from a defect in _______ - ANSWER-morphodifferentiation
dilaceraton results from a defect in _______ - ANSWER-morphodifferentiation
macro/microdontia results from a defect in _______ - ANSWER-proliferation
fusion/gemination results from a defect in _______ - ANSWER-proliferation
, supernumary/agenesis results from a defect in _______ - ANSWER-initiation
Bud stage is characterized by - ANSWER-Proliferation and morphodifferentation
Cap stage is characterized by - ANSWER-proliferation
morphodiff
histodiff
What stage is the future DEJ outlined? - ANSWER-Advanced bell stage
The primodia of the permanent bud is seen at which stage? - ANSWER-Bell stage
Syndromes with supernumary teeth? - ANSWER-Cleidocranial dysplasia
garderns syndrome
Aperts
Crouzons
Down syndrome
Conditions associated with hypodontia: - ANSWER-ectodermal dysplasia
ellis van crevald (chondorocetodermal dysplasia)
Oro-facial-digital
Crouzons
achondroplasia
William syndrome
Reiger syndrome
Hallerman streif
Down syndrome
What is the Lyon hypothesis> - ANSWER-X chromosome inactivation
X linked disorders --> women show lesser phenotype since there is less penetrance
since they have 2 X's
What is the inheritance pattern of microdontia - ANSWER-Autosomal dominant
incomplete penetrance
Condition with microdontia - ANSWER-Ectodermal dysplasia
chondroectodermal dysplasia
Down
Crouzons
Pituitary dwarfism
Conditions with MACROdontia - ANSWER-Crouzons
hemifacial HYPERtrophy
otpdental syndrome
XYY
Pituitary gigantism
Pineal hyperplasia with hyperinsulinemia
What is the most common tooth affected by dens indente? - ANSWER-maxilary
lateral
QUESTIONS AND ANSWERS
Vitamin deficiency in A,C,D, calcium, phosphate, fluoride can all result in what tooth
defect? - ANSWER-enamel hypoplasia
What tooth defect can be seen in syphils, rubella, Rh incompatibilit - ANSWER-
Enamel hypoplsia
DD I shows dysplasia in what kind of dentin? - ANSWER-Radicular
Common findings in DD I - ANSWER-short blunted roots
PCO
PARL multiple
primary more affected
DDII common finidngs - ANSWER-thissle pulp
pulp stones
What dentin is affected in DDII - ANSWER-Coronal and radicular
In what syndrome do you see deficient cellular cementum? - ANSWER-Cleidogranial
dysplasia
What are the two theories of eruption supported by animal studies? - ANSWER-
Periodontal ligament traction
CT proliferation at apex
In the periodontal ligament traction theory of eruption whtat is an essentail part for
the eruptive process? - ANSWER-Dental follice
Is there an effect on nutrition and eruption? low birth weight? - ANSWER-Nutirtion -
NO
LBW - yes! delayed
What syndrome has high incidence of natal/neonatal teeth - ANSWER-
Chondroceteodermal dysplasia
Delyaed exfoliation and perm eruption seen in what condiitions? - ANSWER-Vitamin
D resistant rickets
endocrine disorders
CP
celiac disease
Prematurity
idiopathic failure of eruption
diabetes
,Type 1 vs type 2 failure of eruption - ANSWER-1: failure around the same time for all
teeth affected and then ALL teeth distal effected
2: gradient over time, some distal teeth affected
Familial failure to erupted associated with what gene? - ANSWER-PTH1R
Disease of bone (2) that result in premature exfoliation - ANSWER-Vitamin D
resistant rickets
Fibrous dysplaisa
Order of ankylosed teeth primary - ANSWER-Mand D
Mand E
Max D
Max E
Incidence of both fusion and gemination is? AD/AR/Non hereditary? - ANSWER-
0.5%
AD
Bell - Histodifferentiation defects -->? - ANSWER-Amelogenesis Imperfecta
Dentinogenesis Imperfecta
AI Type I vs II - AD? AR? - ANSWER-Type I - AD
Type II - AR
Advance Bell - Morphogenesis defects --> ? - ANSWER-Dens in dente
Dens Evaginatus
Taurodontism
Dilaceration
(Defects in form/shape)
Most common tooth for dens in dente - ANSWER-Maxillary permanent lateral incisor
Most common tooth for dens evaginatus - ANSWER-Common in Max incisors
Laterals 50%
Centrals 30%
(Most in PERM)
Dens evaginatus associated with what syndromes? - ANSWER-Sturge webber
Rubinstein - Taybi Syndrome
Syndromes associated with Taurodontism? - ANSWER-Klienfelter's
Ectodermal dysplasia
Down syndrome
Hypotrichosis
Oro-facial-Digital Syndrome
Amelogenesis Imperfecta
,Lit: Are missing teeth and/or supernumary teeth assocaited with taurodontism? -
ANSWER-Missing teeth ARE related
Supernumary are NOT related
Dilaceration is associated with what syndrome? - ANSWER-Congenital Ichthyosis
Apposition defects? - ANSWER-Dentin Dysplasia I
Dentin Dysplasia II
Regional odontodysplasia
DDI/DDII/Regional odontodysplasia - AD/AR/Non hereditary - ANSWER-DDI - AD
DDII - AD
Regional Odonto. - Non-Hereditary
Regional Odontodysplasia is associated with what? - ANSWER-RH factor
incompatibility
Hypophosphatasia
Ectodermal Dysplasia
Defects in Calcification/Mineralization - ANSWER-AI Type III (hypocalcified)
Flurosis
Defect in Proliferation: - ANSWER-Macro
micro
fusion
gemination
Defect in Histodifferentiation - ANSWER-AI
DI
Defect in morphodifferentiation - ANSWER-Dens indente/evag/taurodontism/dilac
Defect in apposiition? - ANSWER-Dentin dysplasia
Regional odontodysplasia
Dentin dysplasia results from a defect in _______ - ANSWER-Apposition
Regional odontodysplasia results from a defect in _______ - ANSWER-apposition
Dens invaginatus/evag results from a defect in _______ - ANSWER-
morphodifferentiation
taurodontism results from a defect in _______ - ANSWER-morphodifferentiation
dilaceraton results from a defect in _______ - ANSWER-morphodifferentiation
macro/microdontia results from a defect in _______ - ANSWER-proliferation
fusion/gemination results from a defect in _______ - ANSWER-proliferation
, supernumary/agenesis results from a defect in _______ - ANSWER-initiation
Bud stage is characterized by - ANSWER-Proliferation and morphodifferentation
Cap stage is characterized by - ANSWER-proliferation
morphodiff
histodiff
What stage is the future DEJ outlined? - ANSWER-Advanced bell stage
The primodia of the permanent bud is seen at which stage? - ANSWER-Bell stage
Syndromes with supernumary teeth? - ANSWER-Cleidocranial dysplasia
garderns syndrome
Aperts
Crouzons
Down syndrome
Conditions associated with hypodontia: - ANSWER-ectodermal dysplasia
ellis van crevald (chondorocetodermal dysplasia)
Oro-facial-digital
Crouzons
achondroplasia
William syndrome
Reiger syndrome
Hallerman streif
Down syndrome
What is the Lyon hypothesis> - ANSWER-X chromosome inactivation
X linked disorders --> women show lesser phenotype since there is less penetrance
since they have 2 X's
What is the inheritance pattern of microdontia - ANSWER-Autosomal dominant
incomplete penetrance
Condition with microdontia - ANSWER-Ectodermal dysplasia
chondroectodermal dysplasia
Down
Crouzons
Pituitary dwarfism
Conditions with MACROdontia - ANSWER-Crouzons
hemifacial HYPERtrophy
otpdental syndrome
XYY
Pituitary gigantism
Pineal hyperplasia with hyperinsulinemia
What is the most common tooth affected by dens indente? - ANSWER-maxilary
lateral
