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Biomedical Science 1 > Deciduous Teeth > Flashcards

Deciduous Teeth Flashcards

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1
Q

How many deciduous teeth are present in each quadrant?

A

5

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2
Q

What are the deciduous teeth present in each quadrant?

A

2 incisors
1 canine
0 pre-molars
2 molars

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3
Q

What is the function of interproximal spaces between primary teeth?

A

Allows for proper alignment of future permanent dentition

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4
Q

What is the average age for the eruption of the first tooth?

A

6-10 months

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5
Q

What are 4 potential problems with the premature loss of deciduous teeth?

A
  1. Loss of arch length
  2. Delayed of premature eruption of permanent tooth
  3. Alteration in bite
  4. Shift in midline of teeth
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6
Q

What are 6 main comparisons between deciduous and permanent teeth?

A
  1. Deciduous teeth are whiter
  2. Deciduous teeth are smaller in overall size
  3. Deciduous teeth have a more prominent cervical ridge
  4. Deciduous teeth roots are more divergent
  5. Deciduous teeth have less mineralised crowns
  6. Deciduous teeth have proportionately larger pulp cavities
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7
Q

What is the general order of eruption of deciduous teeth?

A
  1. Central incisor
  2. Lateral incisor
  3. First molar
  4. Canine
  5. Second molar
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8
Q

Which dental arch tends to have teeth erupt first?

A

Mandibular

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9
Q

What is a rough rule which compares the number of teeth erupted and time taken?

A

6/4 - For every 6 months aged, 4 teeth emerge

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10
Q

What is the general order of eruption of permanent teeth?

A
  1. 1st molar
  2. Central incisor
  3. Lateral incisor
  4. Canine
  5. 1st premolar
  6. 2nd premolar
  7. 2nd molar
  8. 3rd molar
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11
Q

When is the first evidence of crown formation?

A

5 months in utero

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12
Q

At what age are the crowns of the incisors complete?

A

By 5 months

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13
Q

When does the crown of the 1st permanent molar begin to form?

A

Birth

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14
Q

When does the first deciduous molar erupt?

A

12-16 months

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15
Q

By what age have all deciduous teeth erupted?

A

36 months

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16
Q

At what age are the roots of all deciduous teeth fully formed?

A

3 years

17
Q

At what age is the crown of the first permanent molar complete?

A

3 years

18
Q

At what age is the crown of the permanent incisors complete?

A

4-5 years

19
Q

At what age does resorption of the roots of deciduous teeth begin?

A

5 years

20
Q

At what age does the permanent first molar erupt?

A

7-8 years

21
Q

At what age are the deciduous incisors replaced by permanent incisors?

A

6-9 years

22
Q

What is the term used to describe when both deciduous and permanent teeth are present?

A

Mixed dentition

23
Q

At what age have the roots of all erupted permanent teeth been completed?

A

14-16 years

24
Q

At what age does the 3rd molar erupt?

A

17-21 years

Biomedical Science 1 (19 decks)

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