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Tim's Cards > Dental Anatomy I > Flashcards

Dental Anatomy I Flashcards

1
Q

Where does the lettering of Primary Dentition begin?

A

Right Maxillary 2nd Molar

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2
Q

How many primary teeth?

A

20

A through T

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3
Q

What are the 5 teeth in each quadrant in primary dentition?

A 
Central incisor
Lateral incisor
Canine (cuspid)
First molar
Second molar
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4
Q

What 2 teeth have no proximal surface?

A

Central incisors

Distal surface 3rd Molar

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5
Q

What are the 4 axial surfaces of Posterior Teeth?

A

Mesial
Distal
Facial
Lingual

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6
Q

What 2 structures fuse to make up the Oblique Ridge?

A

Triangular ridge of distofacial cusp

Distal cusp ridge of the mesiolingual cusp

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7
Q

Why aren’t Oblique Ridges pure transverse ridges?

A

Both aren’t triangular

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8
Q

Where are Cervical Ridges found?

A

Greatest convexity
Facial and Lingual surfaces
Cervical

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9
Q

T/F

A sulcus and groove are the same

A

False

*sulcus is space above a groove

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10
Q

Where is a Sulcus found?

A

Between two ridges/cusps

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11
Q

T/F

The incisal ridge is not considered a surface

A

True

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12
Q

T/F

The mesioincisal line angle combines planes of two surfaces

A

False

Incisar ridge isn’t a surface, so 2 line angles come together

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13
Q

Name 3 line angles of the anterior teeth

A

Mesioincisal
Mesiofacial
Distofacial

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14
Q

T/F

Emergence and Eruption are the same

A

False

*emergence technically tooth 1st appearance through gingiva

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15
Q

When the apical foramen closes completely and calcification of a tooth is complete:

A

Root completion

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16
Q

What is the term for tooth loss?

A

Exfoliation

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17
Q

What is the 1st and last Primary Crown to be completed?

Months?

A

Maxillary Central Incisor
(1.5 months)

Maxillary 2nd Molar
(11 months)

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18
Q

T/F

All primary tooth crowns are completed by 1 year of age

A

True

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19
Q

What 2 teeth have completely formed crowns at birth?

A

Primary mandibular 1st molar

Primary mandibular Central Incisor

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20
Q

What teeth have begun calcification at birth?

A

Permanent Mandibular 1st Molars

21
Q

At what age does anterior tooth spacing stop expanding?

A

6 years

22
Q

What teeth erupt at 6 years?

A

Permanent 1st Molars

23
Q

What 3 Permanent crowns have completely calcified at 6?

A

Incisors
1st Premolars
1st Molars

24
Q

What contains the developing tooth?

A

Dental Follicle

*sac-like structure

25
Q

Where is the follicle position in the development of permanent anterior teeth?

A

Lingual to Primary roots

26
Q

Where is the developing tooth follicle of permanent premolars located?

A

within Bifurcation/Trifurcation of primary molar roots

27
Q

Where are developing follicles located in relation to the primary Molar teeth?

A

Distal or Posterior

28
Q

What permanent teeth initiate calcification from birth to 1 year?

A

First molar
Central incisor
Canine
Lateral incisor

29
Q

What permanent teeth initiate calcification from 2 to 4 year of age?

A

Premolars

Second Molars

30
Q

When have the 3rd molars begun calcification?

A

9 years

31
Q

What is a single cone structure called?

A

Haplodont

32
Q

What are 3 straight line cusps called?

A

Triconodont

33
Q

What are 3 cusps in a primary triangle?

A

Tritubercular Molar

34
Q

What are 4 cusps in a rectangular or rhomboid form?

A

Quadritubercular Molar

35
Q

What 3 cusps make up the Trigon Primary Cusp Triangle?

What cusp is left out?

A

Mesiofacial
Distofacial
Mesiolingual

Distolingual left out

36
Q

What 2 teeth have only one antagonist in the opposing arch?

A

Maxillary 3rd molars

Mandibular central incisors

37
Q

What is the acronym to remember Proximal Contact Areas of the Maxillary Anterior Teeth?

A

IJJMJM

38
Q 
Match the Proximal Contacts:
Midline:
Distal of Central:
Mesial of Lateral: 
Distal of Lateral:
Mesial of Canine:
Distal of Canine
A 
Incisal third
Junction of incisal/middle thirds 
Junction of incisal/middle thirds
Middle third
Junction of incisal/middle thirds
Middle third
39
Q

Contour and location of Maxillary anterior teeth for
Facial surface:
Lingual surface

A

Facial: 0.5 mm Cervical 3rd

Lingual: 0.5 mm Cervical 3rd

40
Q

Contour and location of Maxillary posterior teeth for
Facial surface:
Lingual surface:

A

Facial: 0.5 mm Cervical 3rd

Lingual: 0.5 mm MIDDLE 3rd

41
Q

How does the periodontal ligament attach the tooth to the alveolar bone?

A

Inserts into Cementum and bone

42
Q

T/F

The periodontal ligament is functionally expressed as strategically placed fibers

A

True

43
Q

Where is the smallest Embrasure in the maxilla?

anterior teeth

A

midline incisors

44
Q

Where is the largest Embrasure in the maxilla?

anterior teeth

A

Between canine and premolar

45
Q

T/F

Mesial portions of crowns are generally more developed than distal

A

True

46
Q

T/F

Mesial cusps are smaller than distal cusps

A

False

47
Q

T/F

Mesial marginal ridges are usually taller than distal marginal ridges

A

True

*1st premolar exception

48
Q

T/F

Molars taper mesiodistally

A

True

49
Q

What 2 teeth don’t taper faciolingually?

A

Maxillary 1st molar

Mandibular 2nd premolar
Y-grooved

Tim's Cards (140 decks)

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