AAPD Remembered working ( Updated
2025-2026 ) 1-100 Complete Questions &
Answers (Solved) With Rationales 100%
Correct Graded A+
A pea-sized amount of fluoridated toothpaste is
appropriate for what age range?
age 2-5
Problems in the histodifferentiation stage of tooth
development lead to anomalies of ____________.
anomalies of enamel and dentin (enamel hypoplasia, AI,
DI, DD)
Problems in the morphodifferentiation stage of tooth
development lead to _____________.
Anomalies of enamel, dentin, and cementum
,Is hyperdontia more common in the maxilla or the
mandible?
maxilla (9:1)
Describe features of orofaciodigital syndrome.
supernumerary teeth and/or hypodontia; multiple or
hyperplastic frenula, cleft tongue
Describe features of Hallerman-Strieff syndrome.
supernumerary teeth, mandibular hypoplasia, high palatal
vault, delayed primary exfoliation, malar hypoplasia
Describe features of chondroectodermal dysplasia (aka
Ellis van Creveld).
hypodontia, conical crowns, enamel hypoplasia, short
stature, lack of maxillary sulcus, premature teeth
Describe features of Incontinentia pigmenti
hypodontia, conical crowns, delayed eruption, premature
teeth, cleft lip/palate, blistering of the skin,
hyperpigmentation
Describe features of Seckel syndrome
hypodontia, microcephaly, midface hypoplasia, dwarfism,
large eyes
Describe features of Williams Syndrome.
,Hypodontia, prominent lips, microdontia, enamel
hypoplasia, elflike facial appearance, happy demeanor
Name 6 diseases associated with taurodontism.
Klinefelter syndrome, tricho-dento-osseous syndrome,
Mohr syndrome (aka orofaciodigital syndrome II),
ectodermal dysplasia, Down syndrome, amelogenesis
imperfecta type IV
Describe the features of tricho-dento-osseous syndrome.
Dolichocephalic with frontal bossing, taurodontism,
delayed eruption, kinky or coarse hair at birth, enamel
hypoplasia, AI+taurodontism+nail and hair defects
Describe the features of Mohr syndrome.
Lobed tongue, upper lip/midline cleft, oligodontia,
polydactyly
What type of amelogenesis imperfecta is associated with
taurodontism?
AI type IV with taurodontism (hypomaturation-
hypoplastic)
Which type of Dentinogenesis imperfecta occurs along
with osteogenesis imperfecta?
Shields Type I
, Describe Shields Type I dentinogenesis imperfecta.
Occurs with osteogenesis imperfecta, primary teeth more
severely affected, permanent first molars and central
incisors most often affected, amber translucence,
periapical radiolucencies without caries, autosomal
dominant, rapid attrition
Describe Shields type II dentinogenesis imperfecta
no OI, hereditary opalescent dentin, both primary and
permanent dentitions equally affected, periapical
radiolucencies, rapid attrition, pulp chamber obliteration,
autosomal dominant
Describe Shields Type III dentinogenesis imperfecta.
bell-shaped crowns, "shell teeth", short roots, enlarged
pulp chambers, enamel pitting, rare, pulp exposures
What type of osteogenesis imperfecta is lethal in the
perinatal period?
OI type II
Describe the features of osteogenesis imperfecta.
AD, bone fractures, bowing of legs, blue sclera,
bitemporal bossing, loose ligaments, impaired hearing,
2025-2026 ) 1-100 Complete Questions &
Answers (Solved) With Rationales 100%
Correct Graded A+
A pea-sized amount of fluoridated toothpaste is
appropriate for what age range?
age 2-5
Problems in the histodifferentiation stage of tooth
development lead to anomalies of ____________.
anomalies of enamel and dentin (enamel hypoplasia, AI,
DI, DD)
Problems in the morphodifferentiation stage of tooth
development lead to _____________.
Anomalies of enamel, dentin, and cementum
,Is hyperdontia more common in the maxilla or the
mandible?
maxilla (9:1)
Describe features of orofaciodigital syndrome.
supernumerary teeth and/or hypodontia; multiple or
hyperplastic frenula, cleft tongue
Describe features of Hallerman-Strieff syndrome.
supernumerary teeth, mandibular hypoplasia, high palatal
vault, delayed primary exfoliation, malar hypoplasia
Describe features of chondroectodermal dysplasia (aka
Ellis van Creveld).
hypodontia, conical crowns, enamel hypoplasia, short
stature, lack of maxillary sulcus, premature teeth
Describe features of Incontinentia pigmenti
hypodontia, conical crowns, delayed eruption, premature
teeth, cleft lip/palate, blistering of the skin,
hyperpigmentation
Describe features of Seckel syndrome
hypodontia, microcephaly, midface hypoplasia, dwarfism,
large eyes
Describe features of Williams Syndrome.
,Hypodontia, prominent lips, microdontia, enamel
hypoplasia, elflike facial appearance, happy demeanor
Name 6 diseases associated with taurodontism.
Klinefelter syndrome, tricho-dento-osseous syndrome,
Mohr syndrome (aka orofaciodigital syndrome II),
ectodermal dysplasia, Down syndrome, amelogenesis
imperfecta type IV
Describe the features of tricho-dento-osseous syndrome.
Dolichocephalic with frontal bossing, taurodontism,
delayed eruption, kinky or coarse hair at birth, enamel
hypoplasia, AI+taurodontism+nail and hair defects
Describe the features of Mohr syndrome.
Lobed tongue, upper lip/midline cleft, oligodontia,
polydactyly
What type of amelogenesis imperfecta is associated with
taurodontism?
AI type IV with taurodontism (hypomaturation-
hypoplastic)
Which type of Dentinogenesis imperfecta occurs along
with osteogenesis imperfecta?
Shields Type I
, Describe Shields Type I dentinogenesis imperfecta.
Occurs with osteogenesis imperfecta, primary teeth more
severely affected, permanent first molars and central
incisors most often affected, amber translucence,
periapical radiolucencies without caries, autosomal
dominant, rapid attrition
Describe Shields type II dentinogenesis imperfecta
no OI, hereditary opalescent dentin, both primary and
permanent dentitions equally affected, periapical
radiolucencies, rapid attrition, pulp chamber obliteration,
autosomal dominant
Describe Shields Type III dentinogenesis imperfecta.
bell-shaped crowns, "shell teeth", short roots, enlarged
pulp chambers, enamel pitting, rare, pulp exposures
What type of osteogenesis imperfecta is lethal in the
perinatal period?
OI type II
Describe the features of osteogenesis imperfecta.
AD, bone fractures, bowing of legs, blue sclera,
bitemporal bossing, loose ligaments, impaired hearing,
