Dental Lamina and Enamel Organ Flashcards
Peach sheet for Quiz on 10/28
T/F
the 20 localized thickenings in the dental lamina corresponds with the future primary teeth
true
T/F
the earliest signs of tooth development are seen during the tenth week in utero
false
T/F the outer (OEE) and inner (IEE) enamel epithelium are both a continuation of the basal layer of oral epithelium
true
t/f
the cap stage begins when the concavity of the cap grows more pronounced
true
t/f
primary teeth develop more quickly than permanent teeth
true
t/f
the vestibular lamina forms in a lingual direction from the dental lamina
false
t/f
the enamel organ is formed from epithelial cells
true
t/f
the dental sac is the same as the dental papilla
false
t/f
the dental lamina thickens first at the anterior midline
true
t/f
without the formation of the vestibular lamina there would be no alveolar ridge
true
t/f
the stellate reticulum is dervied from octodermal cells
true
t/f
the permanent molars develop from successional lamina
false
forms most permanent teeth
successional lamina
forms cementum
dental sac
forms enamel
enamel organ
forms mucobuccal fold
vestibular lamina
forerunner of primary tooth germ
dental lamina
forms pulp
dental papilla
the dental papilla is first seen in the
late bud stage
the various layers of the enamel organ DOES NOT
calcification of enamel
the enamel organ originates from the
ectoderm
the clefting that forms the thickened vestibular lamina eventually becomes a
mucobuccal fold
ectodermal dysplasia can cause poor development of which structures
skin
hair
enamel
successional lamina forms all except the permanent
molars
T/F?
the cells of the IEE change externally and shorten as they develop into ameloblasts. they are responsible for enamel formation
first statement false
second statement true
the basal layer of oral epithelium is composed of _______cells
cuboidal cells
the stratum intermedium develops in the _______ stage
bell
which cells or structures produce ameloblasts
IEE
