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Test#3 > Odontogenesis > Flashcards

Odontogenesis Flashcards

1
Q

In which stage does the basement membrane form to separate the oral epithelium and ectomesenchyme?

A

The Bud Stage

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2
Q

In the bud stage what grows into a bud shape that penetrates growing ectomesenchyme?

A

Dental Lamina

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3
Q

In the Bell Stage, the Inner Enamel Epithelium, Stellate Reticulum, and the Stratum Intermediate form?

A

Enamel

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4
Q

Outer Enamel Epithelium

A

Unstratified Cuboidal

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5
Q

Inner Enamel Epithelium

A

Unstratified Columnar

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6
Q

IEE cells become what to make enamel?

A

Ameloblast

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7
Q

The Stellate Reticulum are star shaped cells between what?

A

IEE & OEE

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8
Q

The Stratum Intermediate is a compressed layer between the____?

A

IEE& OEE

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9
Q

What attracts water in the area, in the bell stage?

A

Glycosamino (GAG’s)

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10
Q

In the bell stage, differentiation of the enamel organ into the bell shape has 4 cell types. Name them

A

1) Outer enamel epithelium
2) Inner enamel epithelium
3) Stellate reticulum
4) Stratum Intermediate

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11
Q

In the bell stage, differentiation of the dental papilla has 2 cell types. Name them and what the develop into.

A

1) Outer Cells-dentin

2) Inner Cells-pulp

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12
Q

The Initiation Stage is in what weeks?

A

6th & 7th week

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13
Q

The Bud Stage occurs in what week?

A

Week 8

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14
Q

The Cap Stage occurs in what weeks?

A

9th and 10th week

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15
Q

The Bell Stage occurs in what weeks?

A

11th & 12th weeks

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16
Q

During root formation, what is formed by the IEE and OEE?

A

Cervical Loop

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17
Q

When there is no SR or SI in the cervical loop what does it make?

A

Dentin

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18
Q

During root formation, the cervical loop stimulate cells to be come what?

A

Odontoblasts

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19
Q

What part of the cervical loop functions to shape the root and induce root dentin formation?

A

Hertwig’s Epithelium Root Sheath

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20
Q

During Crown Formation, the IEE elongates and becomes_____?

A

Pre-ameloblasts

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21
Q

What age is a child if they are missing their mandibular central incisors, O& P?

A

6 years old

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22
Q

A 7 year old is missing what teeth?

A

Maxillary central incisors E & F

Mandibular lateral incisors Q & N

23
Q

What teeth does a 7 year old have coming in?

A

1st molars-3,14,19,30

Mandibular central incisors 24 & 25

24
Q

If a child is missing their maxillary lateral incisors, how old are they?

A

8 years old

25
Q

An 8 year old has what teeth erupting?

A

Maxillary central incisors 8 & 9

Mandibular lateral incisors 23 & 26

26
Q

If a child is missing their mandibular canines and has their maxillary lateral incisors erupting, how old are they?

A

9 years old

27
Q

A 10 year old is missing what teeth?

A

Maxillary pre molars A,B,I,J

28
Q

If a child has their mandibular 1st premolars and mandibular canines erupting, they are how old?

A

10 years old

29
Q

If a child is missing their maxillary 2nd premolars, maxillary canines, mandibular 1st premolar, and mandibular 2nd premolars, how old are they?

A

11 years old

30
Q

An 11 year old has what teeth erupting?

A

Maxillary 1st premolar 5&12

Mandibular 2nd molars begin to form 18 & 31

31
Q

If a child has their maxillary canines, and premolars and mandibular premolars and 2nd molars erupting, how old are they?

A

12 years old

32
Q

At what age do teeth #1, #16, #17, #32 start erupting?

A

Around 18 years old

33
Q

In Primary Dentition, the central incisors erupt ____?

A

Maxillary-7 to 8 months

Mandibular-6 months

34
Q

In Primary Dentition, the lateral incisors erupt ____?

A

Maxillary- 9 months

Mandibular 7 months

35
Q

In Primary Dentition, the canines erupt ____?

A

Maxillary and mandibular erupt at 16-18 months

36
Q

In Primary Dentition, the first molars erupt ____?

A

Maxillary and Mandibular erupt at 12 to 14 months

37
Q

In Primary Dentition, the 2nd molars erupt ____?

A

Maxillary-24 months

Mandibular-20 months

38
Q

In Permanent Dentition, the central incisors erupt ____?

A

Maxillary - 7 to 8 years

Mandibular- 6 to 7 years

39
Q

In Permanent Dentition, the lateral incisors erupt ____?

A

Maxillary-8 to 9 years

Mandibular-7 to 8 years

40
Q

In Permanent Dentition, the canines erupt ____?

A

Maxillary- 11 to 12 years

Mandibular-9 to 10 years

41
Q

In Permanent Dentition, the first premolars erupt ____?

A

Maxillary- 10 to 11 years

Mandibular- 10 to 12 years

42
Q

In Permanent Dentition, the second premolars erupt ____?

A

10 to 12 years

43
Q

In Permanent Dentition, the first molar erupts_____?

A

6 to 7 years

44
Q

In Permanent Dentition, the 2nd molar erupts____?

A

Maxillary -12 to 13 years

Mandibular-11 to 13 years

45
Q

In Permanent Dentition, the 3rd molars erupt ____?

A

17- 21 years

46
Q

On the maxillary what teeth have 4 lobes (3 being Facial, 1 lingual)?

A

Premolar to Premolar 4-13

47
Q

On the mandibular, what teeth have 4 lobes (3 facial,1 lingual)?

A

22-27 canine to canine

48
Q

On the maxillary what teeth has 5 lobes (2 buccal, 3 lingual)?

A

1st molar. 3&14

49
Q

On the mandibular, what teeth has 5 lobes (2 lingual,3 buccal)?

A

1st molar 19&30

50
Q

On the maxillary and mandibular, what teeth have 4 lobes ( 2 buccal, 2 lingual)?

A

2nd and 3rd molars 1,2 15,16 17,18 31,32

51
Q

In week 1, preimplantation takes place within ____?

A

4 to 7 days

52
Q

Blastocysts are_____?

A

Fluid filled collection of cells

53
Q

Fertilization is the Union of ____?

A

Sperm and ovum

54
Q

In which stage to the ectomesenchyme and the oral epithelium interact to create the dental lamina?

A

Initiation stage

Test#3 (1 decks)

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