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PEDIATRIC DENTISTRY > L.2 Development of the Dentition > Flashcards

L.2 Development of the Dentition Flashcards

1
Q

When do the PRIMARY TEETH begin to develop?

A

6-8 weeks in utero

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2
Q

When do the PRIMARY TEETh begin to calcify?

A

14-19 weeks in utero

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3
Q

What are the first PRIMARY teeth to erupt? Which teeth?

A

6 months…mand centrals

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4
Q

Which Primary teeth typically come in the arch first, mandibular or maxillary?

A

mandibular, usually 2 months earlier than its maxillary counterpart

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5
Q

What are the LAST PRIMARY teeth into the dentition? When?

A

Maxillary 2nd molars…24 months

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6
Q

What are the three main stages of tooth development in order please? What are the OFFICIAL NAMES of these stages?

A

Bud (initiation), Cap(proliferation), Bell (differentiation)

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7
Q

What is the most common PRIMARY tooth to never develop?

A

Primary Maxillary Lateral Incisior

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8
Q

What is HANDS DOWN, the most common PERMANENT tooth to not develop?

A

3rd molar

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9
Q

Besides the MOST OBVIOUS Permanent tooth to be missing (3rd molar), what are the next three most common in order?

A

1.Mand 2nd PM 2.Max Lat Incisior 3.Max 2nd PM (most distal tooth in each set!)

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10
Q

Who is most effected by supernumerary teeth? male or female?

A

male 2:1

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11
Q

Are supernumeraries more common in the form of permanent teeth or primary teeth?

A

permanent (5:1)

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12
Q

Which arch has 90% of supernumerary tooth development?

A

maxilla

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13
Q

What percent of primary supernumerary teeth have a permanent successor?

A

33%

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14
Q

What two stages do gemination and fusion occur?

A

initiation (bud) and proliferation (cap)

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15
Q

When does concrescence occur?

A

after formation

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16
Q

What is more common fusion or gemination?

A

FUSION (94% of the time!)

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17
Q

Which teeth arise from Dental Lamina?

A

all non-succedaneous (so all primary teeth and permanent molars)

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18
Q

What are the 3 teeth most likely to me microdontic?

A

1.Maxillary Lateral Incisiors 2.2nd PMs 3.3rd molars

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19
Q

Some of the signs for Dentinogenesis Imperfecta: _______ is undermineralized

A

dentin

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20
Q

Some of the signs for Dentinogenesis Imperfecta: _______ color

A

opalescent

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21
Q

Some of the signs for Dentinogenesis Imperfecta: the pulp is ________ or small

A

obliterated

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22
Q

What is unique about type I dentinogenesis imperfecta?

A

it is also considered osteogenesis/brittle bones

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23
Q

What are 2 unique things about type II dentinogenesis imperfecta?

A

its TEETH ONLY and its more common

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24
Q

What is the unique thing about type III Dentinogenesis imperfecta?

A

its only found in Brandywine

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25
Q

What are these describing?: Enamel thin and wears easily Dentin and pulp normal Yellow discoloration

A

Amelogenesis imperfecta

26
Q

What is the characteristic of type I Amelogenesis Imperfecta?

A

HypoPlastic

27
Q

What is the characteristic of type II Amelogenesis Imperfecta?

A

HypoMaturation

28
Q

What is the characteristic of type III Amelogenesis Imperfecta?

A

HypoCalcified

29
Q

Which dental abnormality is associated with Nails, Hair, Teeth, Sweat glands?

A

Ectodermal Dysplasia

30
Q

Which dental abnormality is associated with defective ameloblast maturation?

A

Enamel Hypocalcification

31
Q

Which dental abnormality is associated with defective enamel matrix formation VitD, Illness in infancy/prematurity?

A

Enamel Hypoplasia

32
Q

Apposition: Decreased number =

A

hypoplasia

33
Q

Apposition: poor quality =

A

hypocalcified

34
Q

Apposition: increased size =

A

hypertrophy

35
Q

Which of the following is a hereditary dental defect in which the enamel of the teeth is soft and under-calcified in context, yet normal in quantity? hypoplasia, hypocalcification, Fluorosis

A

hypo calcification

36
Q

Now don’t get confused. You’ve got primary eruption DOWN. but now heres the catch. whats the sequence of calcification of primary teeth?

A

A-D-B-C-E….what was eruption again? (a-b-d-c-e)

37
Q

If you were to see an infancy ring on a primary tooth when did an event most likely happen and where on a 2nd molar might it be found?

A

it probably happened at 10 months and it would be at the CEJ.

38
Q

If you were to see a neonatal ring on a primary tooth when did it most likely happen and where on a max 2nd molar would you find it?

A

most likely at birth and it will be toward the occlusal surface

39
Q

****What is the sequence of ERUPTION for primary teeth?

40
Q

I love dat shit- What is the trick to learning the age of when the primary teeth erupt?

A

7 + 4….7 months = 0 teeth, 11 mo = 4 teeth, 15 mo = 8 teeth etc…

41
Q

Formation and Eruption of Primary teeth: when do Primary teeth begin to form?

A

6 weeks in utero

42
Q

Formation and Eruption of Primary teeth: when does Calcification begin?

A

14-19 weeks IN UTERO

43
Q

Formation and Eruption of Primary teeth: WHEN is enamel of all primary teeth usually complete?

A

1st year of life

44
Q

Formation and Eruption of Primary teeth: when have all the primary teeth usually erupted?

A

by the 2nd year of life

45
Q

Formation and Eruption of Primary teeth: When are the roots of all primary teeth usually complete?

A

3rd year of life

46
Q

General Characteristics of Primary vs Permanent teeth: Crown- _______ than in permanent, Constricted _______ table AND ______ area

A

SHORTER….occlusal…cerivcal

47
Q

General Characteristics of Primary vs Permanent teeth: Crown: the enamel and dentin are ______ in primary teeth

48
Q

General Characteristics of Primary vs Permanent teeth: Crown: what two words describe pedo teeth contacts?

A

broad and flat

49
Q

General Characteristics of Primary vs Permanent teeth: Crown-what is their typical shade?

A

lighter and more opaque

50
Q

General Characteristics of Primary vs Permanent teeth: Which dimension of the primary tooth has the largest pulp horn? (fascinating!)

A

MB portion of the tooth is largest pulp horn

51
Q

Which portion of the Pedo pulp has more tortuous/irregular/accessory canals

A

radicular pulp

52
Q

What are the three types of INCLUSION CYSTS possible in the newborn? What is a key feature of treating them?

A

Epstein’s Pearls, Bohn’s Nodules, and Dental Lamina Cysts…THEY ARE BENIGN and Will go away w/o Tx!!

53
Q

What are remnants of epithelial tissue trapped along mid palatal raphe?

A

Epstein’s Pearls

54
Q

What are Buccal & Lingual aspects of dental ridges/Junction hard, soft palate Remnants of mucous gland tissue?

A

Bohn’s Nodules

55
Q

What is the result of remnants of dental lamina on the crest of alveolar ridge?

A

Dental-Lamina Cyst

56
Q

What are teeth called if they are present at birth?

A

Natal Teeth

57
Q

What are teeth that erupt within 30 days of birth?

A

Neonatal teeth

58
Q

What is the sore called on the bottom of the tongue caused by neonatal teeth?

59
Q

What are these describing? Supernumerary teeth, defective, mobile, Incidence 1 in 4000, Risk for aspiration, removal is generally recommended

A

Pre-Deciduous teeth

60
Q

What is this describing? Normal primary teeth, Incidence 1 in 2000, Should not be extracted (if possible) Radiograph helpful

A

primary teeth erupted prematurely

61
Q

What is a Bluish, opaque swelling, that is Asymptomatic, is Overlying an erupting tooth, is an Accumulation of fluid in the follicular sac and is Self-limiting on gingival emergence?

A

an Eruption Hematoma!

62
Q

Is an eruption hematoma associated with infection or hematoma?

A

NO! Mis-nomer! its not actually a hematoma!

PEDIATRIC DENTISTRY (11 decks)

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