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Dental Anatomy > Development and eruption > Flashcards

Development and eruption Flashcards

1
Q

Which population often has shovel shaped incisors?

A

Asian/Native Alaskan Populations

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2
Q

What does chronological eruption indicate?

A

Age and Development of Dentition

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3
Q

Is there a lot of variability regarding tooth formation, shape, size, color, etc. that dentists need to adapt to?

A

Yes

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4
Q

If one has less developed enamel, are they more or less susceptible to decay?

A

More

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5
Q

What is enamel hypoplasia?

A

Pitting/holes due to malformation of enamel

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6
Q

What is systemic fluorosis?

A

Over exposure to fluoride

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7
Q

Hypocalcifications can give what?

A

can give a basis for estimating time of defect

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8
Q

True or False: Eruption is only defined as a tooth’s emergence through gingiva

A

FALSE- also includes until it makes contact with opposing arch

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9
Q

When does a tooth stop erupting?

A

When it makes occlusal contact with opposing tooth

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10
Q

What is a synonym for eruption?

A

Emergence

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11
Q

How long does it take for primary dentition to be completed?

A

2-3 years

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12
Q

What is another name for enamel organ?

A

Dental Organ

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13
Q

What is the origin of the developing tooth, that is responsible for initiation of dentin formation, formation of enamel, and establishment of the shape of tooth’s crown?

A

Enamel organ

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14
Q

Does the Enamel Organ develop at the same time and rate?

A

no

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15
Q

Is it possible for some of the primary teeth to have root resorption while the crown is still developing?

A

Yes

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16
Q

What is more resistant to environmental influences, crown or root formation?

A

both are resistant

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17
Q

After the crown development ends, the root development forms the cementum at the cervix which covers what?

A

Dentin

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18
Q

Is the cementum more or less calcified than dentin?

A

less

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19
Q

When is permanent dentition formation fully formed, including third molars?

A

18-25 years of age

20
Q

What is another name for primary teeth?

A

Deciduous

21
Q

What stage of dentition can a dentist detect and prevent problems before permanent dentition sets in?

A

Mixed dentition

22
Q

What week of gestation does teeth start to develop?

A

6TH WEEK

23
Q

What week does calcification of primary teeth occur?

A

13-16 weeks

24
Q

When is crown formation complete in primary dentition?

A

3 to 10.5 months

25
Q

Does primary dentition have more or less space in the mouth?

A

Typically more space

26
Q

When does the adult dentition start?

A

12-15 years

27
Q

What is the eruption sequence in primary teeth typically?

A

Central Incisor, Lateral Incisor, 1st Molar, Canine, 2nd Molar

28
Q

When does mixed dentition begin?

A

eruption of the mandibular first molar 6-7

29
Q

When does mixed dentition end?

A

Loss of last primary tooth (11-12)

30
Q

True or false: if you remove a baby tooth prematurely, you may slow down permanent tooth eruption

A

true

31
Q

When is adult dentition complete?

A

18-25 years

32
Q

How many lobes/centers of formation does each tooth develop from?

A

4 or more

33
Q

When canines and incisors of permanent dentition are coming in, are they lingual or labial to the primary roots of corresponding tooth?

A

lingual to

34
Q

Where do permanent premolars erupt between?

A

within the bifurcation/trifurcation of primary molars

35
Q

Are the size of teeth genetically determined?

A

Can be

36
Q

Who have the smallest teeth?

A

Saami

37
Q

Who have the largest teeth?

A

Australians

38
Q

What is a CT organ inside of dentition, that is soft tissue, and essential for tooth development, but once the root is completed the ability for blood to pass is restricted?

A

Dental pulp

39
Q

What happens to the pulp cavity with age?

A

small and more constricted

40
Q

Where does the gum tissue stop?

A

cej

41
Q

Is there gum tissue that continues across the attachment at the CEJ?

A

yes

42
Q

What is the gingiva called that comes up as a collar?

A

free gingival margin

43
Q

How do you relate the position of the gingival margin and attachment to the CEJ?

A

periodontal probe

44
Q

What should be the distance between the bone height and the free gingival margin?

A

3 mm- if its greater, this may be a sign of periodontal disease

45
Q

What is dental age based on?

A

Formation and eruption of teeth

Dental Anatomy (17 decks)

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