OralHisto Long Quiz Midterms Flashcards

1
Q

when does primary teeth develop

A

prenatal period

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2
Q

how many teeth in primary dentition

A

20

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3
Q

how many teeth in permanent teeth

A

32

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4
Q

overlapping of primary and permanent teeth

A

mixed dentition

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5
Q

physiological processes

A

induction
proliferation
differentiation
morphogenesis
maturation

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6
Q

interaction between embryological cells

A

induction

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7
Q

controlled cellular growth and accumulation of by-products

A

proliferation

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8
Q

change in identical embryonic cells to become distinct structurally and functionally

A

differentiation

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9
Q

development of specific tissue morphology or differing form due to embryonic cell migration and inductive interactions

A

morphogenesis

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10
Q

attainment of adult form and size due to proliferation, differentiation, and morphogenesis

A

maturation

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11
Q

morphologic stage/s in:
initiation

A

dental lamina

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12
Q

morphologic stage/s in:
proliferation

A

bud stage
cap stage
early bell stage

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13
Q

morphologic stage/s in:
histodifferentiation

A

bud stage
cap stage
early bell stage
advanced bell stage

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14
Q

morphologic stage/s in:
morphodifferentiation

A

bud stage
cap stage
early bell stage
advanced bell stage
formation of enamel and dentin matrix

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15
Q

most permanents are developed during?

A

fetal period

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16
Q

the outer part of the ectoderm gives rise to?

A

oral epithelium
(primary epithelial band)

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17
Q

the embryonic process in which one group of cells, the inducing tissue, directs the development of another group of cells, the responding tissue

A

embryonic induction

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18
Q

oral epithelium is induced to produce?

A

dental lamina
and
vestibular lamina

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19
Q

labial and buccal to the dental lamina; develop independently

A

vestibular lamina

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20
Q

aka lip furrow band

A

vestibular lamina

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21
Q

subsequently hollows and forms the oral vestibule between the alveolar portion of the jaws, lips and cheeks

A

vestibular lamina

22
Q

bud stage beginning week

A

8th week of prenatal development

23
Q

extensive proliferation of the dental lamina into buds/ oval masses that penetrate into the ectomesenchyme

A

bud stage

24
Q

at the end of this proliferation both arches will each have?

A

10 buds

25
Q

acellular structure that separates the oral epithelium and ectomesenchyme

A

basement membrane

26
Q

cap stage week

A

8-10th week
(prenatal devt)

27
Q

unequal growth in different parts of the tooth bud

A

cap stage

28
Q

what physiological processes occur in cap stage

A

proliferation
differentiation
morphogenesis

29
Q

a depression results in the deepest part of each tooth bud forming the cap called the?

A

enamel organ

30
Q

enamel organ is derived from?

A

ectoderm

31
Q

what does enamel organ produce

A

enamel
on the outer surface of the tooth

32
Q

the innermost margin of the cap shape

A

enamel organ

33
Q

a part of the ectomesenchyme deep to the buds has condensed into a mass within the concavity of the cap of the enamel organ

A

dental papilla

34
Q

produce the future dentin and pulp

A

dental papilla

35
Q

future dentinoenamel junction (DEJ)

A

basement membrane

36
Q

the remaining ectomesenchyme surrounding the outside of the enamel organ condenses into the?

A

dental sac
or
dental follicle

37
Q

the dental follicle produces?

A

periodontium
(cementum, periodontal ligaments, alveolar bone)

38
Q

appear as an extension of the dental lamina into the ectomesenchyme lingual to the developing primary tooth germs

A

successional dental lamina

39
Q

bell stage week

A

11-12th week
(prenatal devt)

40
Q

bell stage physiological processes

A

proliferation
differentiation
morphogenesis
differentiation

41
Q

4 types of cells found during bell stage

A

IEE
OEE
stellate reticulum
stratum intermedium

42
Q

outer cuboidal cells; protective barrier for the rest of the enamel organ during enamel production

A

OEE

43
Q

tall columnar cells; differentiate into ameloblasts

A

IEE

44
Q

enamel-secreting cells

A

ameloblast

45
Q

star shaped

A

stellate reticulum

46
Q

flat to cuboidal cells

A

stratum intermedium

47
Q

differentiates into odontoblasts

A

outer/peripheral cells

48
Q

dentin-secreting cells

A

odontoblast

49
Q

becomes the primordium of the pulp

A

inner/central cells

50
Q

final stage of odontogenesis

A

apposition

51
Q

matrices fully mineralize

A

maturation