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Oral Anatomy > Primary Teeth > Flashcards

Primary Teeth Flashcards

1
Q

Adult teeth 4-13 replace

A

Primary teeth A-J

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2
Q

Adult teeth 20-29 replace

A

Primary teeth K-T

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3
Q

Succedaneous teeth

A

Incisors, Canines, Premolars

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4
Q

Non-succedaneous teeth

A

Molars

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5
Q

Hard tissue forms between ___ and ____

A

4-6 months in utero

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6
Q

All primary teeth erupt by:

A

2-3 years

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7
Q

All roots are complete by:

A

3 years

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8
Q

Tooth Emergence:

  1. No teeth
  2. Primary teeth erupting
  3. Primary teeth only
  4. Mixed Dentition
  5. Permanent teeth only
  6. 3rd molars
A
  1. Birth-6 months
  2. 6 months - 2 years
  3. 2-6 years
  4. 6-12 years
  5. 12+ years
  6. Late teens - early 20s
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9
Q

Rule of 3s:

A

Crown formation + 3 years = Eruption

Eruption + 3 years = Root completion

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10
Q

Order of emergence of primary teeth (general)

A
  1. Mandibular central incisor (6 mo)
  2. Other incisors
  3. First molars
  4. Canines
  5. Second molars (2 yr)
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11
Q

Order of emergence of secondary teeth

A
  1. First molars and mandibular centrals (6)
  2. Other incisors (7-9)
  3. Mandibular canines (9-10)
  4. Premolars (10-12)
  5. Maxillary canines (12)
  6. Second molars (12)
  7. Third molars
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12
Q

In permanent and primary dentition, which is larger?

First molars
Second molars?

A

In permanent, first molars are larger.

In primary, second molars are larger

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13
Q

Maxillary incisor roots in primary teeth bend in which directions?

A

Lingually in the cervical half and labially in the apical half

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14
Q

What is unique about the contact of maxillary canines in primary teeth?

What tooth shares this quality?

A

Mesial contact of the maxillary canine crown is more cervical than distal.

Mandibular first premolar in the permanent teeth shares this quality

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15
Q

What is unique about the mesial cusp ridge of maxillary canines in primary teeth?

What tooth shares this quality?

A

The mesial cusp ridge is longer than the distal.

Maxillary first premolar in permanent teeth shares this.

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16
Q

Maxillary molars in primary teeth are wider

A

BL

17
Q

Mandibular molars in primary teeth are wider

A

MD

18
Q

All primary molars have ____ (like the mandibular 2nd molar in permanent teeth)

A

Prominent buccal bulges (mesiobuccal)

19
Q

In primary molars: The cervical line curves ___ in the ___ half

A

Apically in the mesial half of the buccal surface

20
Q

Primary second molars resemble secondary ___

A

First molars

21
Q

Primary second molars (max) can have how many cusps?

A

Four cusps plus Carabelli

22
Q

In primary second molars (max), which cusp is larger: MB or ML?

Which is larger in permanent?

A

Neither. The MB and ML cusp are the same.

In permanent teeth, ML is the largest (first molars)

23
Q

Primary second molars (mand) can have how many cusps?

A

5 cusps

24
Q

In primary second molars (mand), which cusp is the widest: DB, MB, D?

A

DB is the widest. MB and D are almost the same

25
Q

Which cusps are most prominent on maxillary first molars in primary teeth?

A

MB and ML. DB and DL are very small

DL can also be absent (like permanent)

26
Q

Primary maxillary 1st molar has a __ shaped groove pattern

A

H shaped

27
Q

Pulps in primary teeth are:

A

Larger (in proportion to tooth)

28
Q

Molar pulp chambers in primary teeth are located mostly:

A

In the crown (due to short trunk)

29
Q

Primary tooth eruption:

Mandibular:

Maxillary:

A

Mandibular

  1. Centrals (6 mo)
  2. Laterals (9 mo)
  3. 1st molar (12 mo)
  4. Canine (16 mo)
  5. 2nd molar (20 mo)

Maxillary

  1. Centrals (7 mo)
  2. Laterals (7 mo)
  3. 1st molar (14 mo)
  4. Canine (18 mo)
  5. 2nd molar (2-3 years)
30
Q

Permanent tooth eruption:

Mandibular:

Maxillary:

A

Mandibular

  1. 1st molar (6-7)
  2. Central (6-7)
  3. Lateral (7-8)
  4. Canine (9-10)
  5. 1st premolar (10-12)
  6. 2nd premolar (11-12)
  7. 2nd molar (11-13)

Maxillary

  1. 1st molar (6-7)
  2. Central (7-8)
  3. Lateral (8-9)
  4. 1st premolar (10-11)
  5. 2nd premolar (10-12)
  6. Canine (11-12)
  7. 2nd molar (12-15)
31
Q

What teeth are often the last to erupt

A

Primary maxillary canines

Oral Anatomy (2 decks)

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