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21 Cards in this Set

  • Front
  • Back
_______________ is a stria of retzius that occurs at birth.
neonatal line
Name two regions where enamel is 'wavy'?
near the DEJ, in cuspal regions (gnarled enamel)
Does 'wavy' enamel provide strength or cause the enamel to be weaker?
provides strength
Crystals in enamel rods are ________ packed while in the sheath they are _________ packed.
tightly, loosely
What are a and b?
a- stria of retzius
b- DEJ
what are a-d?
a- stria of retzius
b- enamel tuft
c- enamel lamella
d- DEJ
what are a-d?
a- gnarled enamel
b- neonatal line
c- dentin
d- DEJ
What is the arrow pointing to?
stria of retzius
What is the arrow pointing to? What is the large dark oblique band?
cross striations, stria of retzius
what structures are shown?
enamel rods
what are a and b?
a- rod sheath
b- rod core
what are a-d?
a- rod core
b- rod sheath
c- rod tail
d- rod head
what is shown here?
enamel rods with HA crystals
what are a and b?
a- rods cut longitudinally
b- rods cut cross sectional
what are the red arrows pointing to?
Hunter Schreger bands
what are a and b?
a- enamel tufts
b- enamel lamella
what are a and b?
a- enamel spindle
b- enamel tuft
what are a-c?
a- enamel tufts
b- DEJ
c- dentin
what are a-c?
a- enamel lamella
b- enamel tuft
c- neonatal line
what are a and b?
a- enamel spindle
b- odontoblast process in dentin
what are a-c?
a- enamel spindle
b- odontoblast process
c- enamel rod