AAPD Handbook Cards Questions With Complete Solutions
1)Enamel Hypoplasia is a potential marker for?
2)Pre-dominant tooth locations Correct Answers 1)Celiac
Disease
2)upper/lower primary/permanent central and lateral incisors
A. What are the components of a tooth bud?
B. When does the dental lamina begin development?
(11-15) Correct Answers A. 1. Enamel Organ (from oral
epithelium)
2. dental papilla
3. dental sac
B. 6 WEEKS of embryonic age
A. What are the three phases in the initiation of primary dentin?
Correct Answers A.
A. Where do the neural crest cells develop from?
B. What are the neural crest cells responsible for the formation
of?
(11-15) Correct Answers A. ECTODERM along the lateral
margins of the neural plate
B. Skeletal & CT: bone, cartilage, DENTIN, dermis, NOT
enamel
AI Hypomaturation/Hypoplastic with Taurodontism Correct
Answers *distinct from Tricho-dento-osseous syndrome
*mottled yellow-brown enamel with pits
*Taurodont molars
*AUTOSOMAL DOMINANT
, AI Type I-Hypoplastic Correct Answers *insufficient quantity
of enamel
*both dentitions affected
*most common subgroup: Autosomal Dominant(AD)
*anterior open bite in 44%
Subgroups:
*pitted:AD
*localized: AD, AR(autosomal recessive)
*smooth: AD, X-linked(X)
*rough: AD
*enamel agenesis:AR
AI Type II-Hypomaturation Correct Answers *normal enamel
thickness
*low radiodensity,poorly mineralized
*less severely hypomineralized than hypocalcified type
*mottled brown-yellow-white color, porous surface; soft, chips
away
*persistence of organic content
*X-linked recessive, AR and AD?
*defective or absent rod sheath
*defective formation of apatite
*sheath may be filled with debris
*SUBGROUPS: pigmented(AR).,X-linked recessive,
snowcapped-AD?-fairly common
AI Type III- Hypocalcified Correct Answers *deficit in
mineralization of matrix
*normal thickness, soft enamel
*ANTERIOR OPEN BITE in 60%
1)Enamel Hypoplasia is a potential marker for?
2)Pre-dominant tooth locations Correct Answers 1)Celiac
Disease
2)upper/lower primary/permanent central and lateral incisors
A. What are the components of a tooth bud?
B. When does the dental lamina begin development?
(11-15) Correct Answers A. 1. Enamel Organ (from oral
epithelium)
2. dental papilla
3. dental sac
B. 6 WEEKS of embryonic age
A. What are the three phases in the initiation of primary dentin?
Correct Answers A.
A. Where do the neural crest cells develop from?
B. What are the neural crest cells responsible for the formation
of?
(11-15) Correct Answers A. ECTODERM along the lateral
margins of the neural plate
B. Skeletal & CT: bone, cartilage, DENTIN, dermis, NOT
enamel
AI Hypomaturation/Hypoplastic with Taurodontism Correct
Answers *distinct from Tricho-dento-osseous syndrome
*mottled yellow-brown enamel with pits
*Taurodont molars
*AUTOSOMAL DOMINANT
, AI Type I-Hypoplastic Correct Answers *insufficient quantity
of enamel
*both dentitions affected
*most common subgroup: Autosomal Dominant(AD)
*anterior open bite in 44%
Subgroups:
*pitted:AD
*localized: AD, AR(autosomal recessive)
*smooth: AD, X-linked(X)
*rough: AD
*enamel agenesis:AR
AI Type II-Hypomaturation Correct Answers *normal enamel
thickness
*low radiodensity,poorly mineralized
*less severely hypomineralized than hypocalcified type
*mottled brown-yellow-white color, porous surface; soft, chips
away
*persistence of organic content
*X-linked recessive, AR and AD?
*defective or absent rod sheath
*defective formation of apatite
*sheath may be filled with debris
*SUBGROUPS: pigmented(AR).,X-linked recessive,
snowcapped-AD?-fairly common
AI Type III- Hypocalcified Correct Answers *deficit in
mineralization of matrix
*normal thickness, soft enamel
*ANTERIOR OPEN BITE in 60%
