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Flashcards in PAEDIATRIC PREP Deck (29)
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1
Q

what is the general rule of eruption of primary teeth?

A

lowers erupt before uppers

2
Q

what is the seuqence of eruption of primary teeth?

A

A B D C E

3
Q

when do upper central primary incisors erupt?

A

8-12 months

4
Q

when do lower lateral primary incisors erupt?

A

6-10 months

5
Q

when do upper primary first molars erupt?

A

13-19 month

6
Q

when do lower primary first molars erupt?

A

14-18 months

7
Q

when do upper primary canines erupt?

A

16-22 months

8
Q

when do lower primary canines erupt?

A

17-23 months

9
Q

when do upper primary second molars erupt?

A

25-33 months

10
Q

when do upper primary canines erupt?

A
11
Q

when do lower primary second molars erupt?

A

23-31 months

12
Q

how does the morphology of primary teeth differ to permanent teeth as a general rule?

A
  • smaller crown
  • smaller root length
  • narrower roots
  • whiter in colour
  • large pulp chambers that sit occlusally
13
Q

what morphological feature can typically be found on primary upper and lower first molars?

A

prominant mesiobuccal tubercle

14
Q

what specific morphological feature can typically be found on primary upper second molars?

A

transverse ridge

15
Q

what specific morphological feature can typically be found on primary lower second molars?

A

three buccal cusps

16
Q

what is the mixed dentition defined as?

A

the mixed dentition stage begins from the time the first permanent tooth erupts until the exfoliation of the last primary tooth.

17
Q

what ages (usually) does the mixed dentition exist between?

A

between 6 - 11 years of age

18
Q

what is the eruption sequence for the upper arch of the permanent dentition?

A

6 1 2 4 5 3 7 8

19
Q

what is the eruption sequence for the lower arch of the permanent dentition?

A

6 1 2 3 4 5 7 8

20
Q

what permanent teeth would you expect to be present in a 6 year old child?

A
  • upper & lower first molars

- lower central incisor

21
Q

what permanent teeth would you expect to be present in a 7 year old child?

A
  • both first molars
  • lower central incisor
  • upper central incisor
  • lower lateral incisor
22
Q

what permanent teeth would you expect to be present in an 8 year old child?

A
  • both first molars
  • both central incisors
  • both lateral incisors
23
Q

what permanent teeth would you expect to see in a 9 year old child?

A
  • both first molars
  • both central incisors
  • both lateral incisors
  • lower canine
24
Q

what permanent teeth would you expect to see in a 10 year old child?

A
  • both first molars
  • both central incisors
  • both lateral incisors
  • lower canine
  • both first premolars
25
Q

what permanent teeth would you expect to see in a 10 and a half year old child?

A
  • both first molars
  • both central incisors
  • both lateral incisors
  • lower canine
  • both first premolars
  • upper second premolar
26
Q

what permanent teeth would you expect to see in an 11 year old child (approx)?

A
  • both first molars
  • both central incisors
  • both lateral incisors
  • both canines
  • both second premolars
  • lower second molar
27
Q

what permanent teeth would you expect to see in a 12 year old child?

A
  • both first molars
  • both central incisors
  • both lateral incisors
  • both canines
  • both second premolars
  • both second molars
28
Q

at what age (roughly) would you expect third molars to erupt in a child?

A

17 years old

29
Q

a child comes into the surgery, on examination you can see that they have both first molars and their lower central incisors, what age are they roughly?

A

6 years old