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Boards - Dental Anatomy Facts from videos > Dental Anatomy Facts Part 1 > Flashcards

Dental Anatomy Facts Part 1 Flashcards

1
Q

Which are less mineralized and more worn

Primary or Permanent teeth

A

Primary

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2
Q

The difference in space from primary to permanent dentition in the arch

A

2-4 mm

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3
Q

Mamelons that remain beyond what age generally indicate what condition

A

beyond age 10 indicate an open bite

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4
Q

Calcification of primary roots is normally completed by what age

A

3-4 years of age

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5
Q

Usual pattern of eruption for primary teeth

additional notes
exception to rule

A

centrals, laterals, 1st molars, canines, 2nd molars

front to back except canine
Lowers before uppers except laterals

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6
Q

Primate space is where on maxillary primary dentition

A

between lateral and canine

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7
Q

Mandibular primary primate space

A

between canine and first molar

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8
Q

Spacing in primary anterior teeth is most frequently caused by

A

growth of dental arches

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9
Q

The direction of primary (deciduous) enamel rods in cervical third

A

occlusal direction

outer (or opposite) direction for permanent enamel rods

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10
Q

A main difference in primary molar roots from permanent

A

more divergent roots

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11
Q

What small or lacking in primary molars

A

a root trunk (CEJ to furcation)

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12
Q

Which tooth has smallest faciolingual crown dimension

A

Primary mandibular central incisor

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13
Q

Most bilaterally symmetrical tooth

A

both the primary and permanent mand central incisor

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14
Q

What results from delayed resorption of primary incisors

A

lingual eruption of permanent incisors

shark teeth

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15
Q

Cervical third of primary central incisors exhibit what

A

prominent cervical ridges facially and lingually

max central?

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16
Q

From a facial view, which slope on primary canine is longer

A

mesio-incisal slope is longer than the disto-incisal

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17
Q

Cusp tip of primary canine off set to which direction

A

distal

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18
Q

The maxillary 1st primary molar crown resembles what tooth

A

a permanent premolar

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19
Q

The maxillary 1st primary molar has roots that resemble which tooth

A

Permanent maxillary molar

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20
Q

Cervical ridge of max 1st primary molar most prominent where

A

Mesio-facial suface

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21
Q

Primary maxillary 2nd molar resembles which tooth

A

Permanent maxillary first molar

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22
Q

Primary maxillary 2nd molar is the only posterior primary tooth to have

A

Oblique ridge and
Transverse ridges and
Disto-lingual grooves

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23
Q

Cusp of carabelli in primary dentition found where

A

Primary maxillary 2nd molar

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24
Q

Last tooth to erupt in primary teeth

A

Maxillary primary 2nd molar

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25
Q

What primary tooth from maxilla has more cusps

A

2nd primary maxillary molar has more cusps than 1st maxillary molar

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26
Q

Which primary tooth has the most prominent cervical ridge

A

Primary mandibular first molar

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27
Q

Which portion of the tooth is the most prominent cervical ridge of primary teeth

A

Facial cervical ridge of primary mand. 1st molar

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28
Q

Facial view of primary mandibular 1st molar, the CEJ is most apical where

A

on mesial third

dips down apically here

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29
Q

What’s up with the fossa of primary mandibular 1st molar

A

Exhibits distal triangular fossa - central fossa displaced to distal
some call it distal or main fossa rather than central

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30
Q

Which tooth has most distinct transverse ridge

A

primary mandibular 1st molar

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31
Q

Which tooth does not look like any permanent tooth

A

primary 1st mandibular molar

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32
Q

Highest and sharpest cusp on primary mandibular first molar

A

Mesiolingual

not mesiobuccal

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33
Q

Teeth whose function is primarily for biting

A

Max central incisors

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34
Q

Tooth with greatest facio-lingual axial inclination

A

Max central incisors

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35
Q

Which tooth has the greatest cervical curvature of any other tooth

A

Max central incisor

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36
Q

The CEJ dips deeper on

A

Anterior teeth than posterior teeth
Max than Mand
Mesial side than distal
Greatest on mesial of Max central incisor

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37
Q

The only anterior teeth that are wider mesio-distally than facio-lingually

A

Max central incisors

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38
Q

Max central incisor has which dimension that is longer than any anterior tooth

A

Mesio-distal

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39
Q

Compare measurements of Inciso-cervical vs Mesio-distal dimensions of max central incisor

A

Nearly identical

40
Q

Contact between max central and lateral incisors makes which embrasure larger

A

makes lingual embrasure larger than facial

typical of most teeth

41
Q

Which incisal embrasure is larger

between max centrals or between central and lateral

A

central and lateral

42
Q

which tooth has most crown shape variations

A

Max lateral

43
Q

Which tooth exhibits most deviation in crown morphology

A

third molars

44
Q

Except for third molars, which tooth exhibits the most deviation in crown morphology

A

Max lateral

45
Q

Nature of Max lateral relation and contact with adjacent teeth

A

Most often in abnormal relation and contact with adjacent teeth

46
Q

Most congenitally missing tooth

A

3rd molars

47
Q

Other than 3rd molars, which tooth is most congenitally missing

A

Max lateral incisor

48
Q

The non-molar tooth that most frequently has a mesial and distal pulp horn

A

Max central incisor

49
Q

Non-molar tooth that is least likely to have a bifurcated root is

A

maxillary central incisor

50
Q

The anterior tooth that most likely would demonstrate lingual pit caries

A

Max Lateral

51
Q

What anatomical feature of Max lateral incisor complicates root planning

A

disto-lingual groove

52
Q

Of all max anterior teeth, which incisal angle has the greatest convexity

A

max lateral disto-incisal angle

53
Q

Where are the most prominent marginal ridges of all anterior teeth found

A

Max lateral

54
Q

Which teeth have the most distinct and deepest lingual fossas of all anterior teeth

A

Max lateral

55
Q

Which tooth has smallest mesio-distal crown width of any maxillary tooth

A

Max lateral

56
Q

Which tooth has nearly identical dimensions mesio-distally and facio-lingually

A

Max lateral incisor

don’t confuse with max central that has identical inciso-cervical and mesio-distal dimensions

57
Q

Furthest cervical contact of any incisor found where

A

Distal contact of max lateral incisor

58
Q

Nature of distal contact of max lateral incisor

A
  • furthest cervical contact of any incisor

- centered both inciso-cervically and facio-lingually

59
Q

Compare root lengths of max central and laterals

A

Max lateral roots are equal to or longer than central root lengths

60
Q

Which side of mand central incisors is the cervical curvature greater

A

greater on mesial than on distal

61
Q

Anatomical feature of mand centrals and laterals root surfaces

A

mesial and distal concave areas

62
Q

Smallest crown dimensions of any tooth

A

mand centrals

63
Q

Most symmetrical crown

A

Mand. Central

64
Q

Sharpest set of incisal angles (mesial and distal)

A

mand central

65
Q

mnemonic for contacts of max anterior teeth, starting at central

A

IJ JM JM
I Just Jacked Michael Jackson’s Moped

I - incisal
J - junction of incisal and middle
M - middle

66
Q

Nature of proximal contacts of mand centrals

A
  • they are at the same level
  • same level on mesial and distal
  • same incisocervical level
67
Q

What are the only maxillary teeth that occlude with only one opposing tooth

only mandibular teeth that occlude with only one tooth

A

Max third molars

Mand central incisors

68
Q

First succedaneous tooth to erupt

A

permanent mandibular central incisor

remember - Permanent firs molar is not succedaneous

69
Q

Size relation of buccal and lingual embrasures of mand central incisors

A

may bet the same

70
Q

The crown of the mand lateral special feature

A

tilts distally in relation to long axis

71
Q

On which tooth can you see the distal marginal ridge from a mesial view

A

mand lateral

because of the distal tilt of its crown in relation to the long axis

72
Q

Compare mesio-distal widths of mandbular centrals and laterals

A

laterals are wider

73
Q

Greatest cervical prominence of any anterior tooth

A

Max canine

74
Q

The tooth that is positioned most nearly to the vertical axis when viewed from a proximal view

A

Max canine

75
Q

Which tooth has overall greatest tooth length

A 
Max canine
(not longest crown)
76
Q

Which tooth has longest root

A 
Max canine
(not longest crown)
77
Q

Greatest facio-lingual dimension of any anterior tooth

A

Max canine

78
Q

Nature of distal contact of max canine

A

It is centered

79
Q

In intercuspal position, which tooth has the potential to contact both anterior and posterior teeth

A

Max canine

Occludes with mand canine and mand premolar

80
Q

Max canine cusp tip located where

A

Located facial to long axis

-centered or slightly facial, so lingual aspect is more visible from incisal view

81
Q

Which lobe of max canine includes the cusp tip

A

middle facial lobe

82
Q

Why are the mesial and distal of max canine asymmetric

A

because of the distal bulge of max canine

83
Q

Outline shape of max canine from facial view

A

pentagonal

84
Q

Tooth with straightest mesial alignment of crown to root

A

Mand canine

85
Q

What tooth has a mesial surface of the crown that is almost parallel to the long axis

A

Mand canine

86
Q

Tooth with longest crown dimension

A

Mand canine

87
Q

Which canine has less prominent cingulum

max or mand

A

mand

88
Q

how does the mesio-distal measurements compare between max and mand canine

A

mand canine is narrower

think distal bulge on max and flat mesial on mand

89
Q

Anterior tooth most likely to exhibit a bifurcated root

A

Mand canine

90
Q

Bifurcation of mand canine roots results in what roots

A

a facial root and lingual root

91
Q

Tooth with longest root of all mandibular teeth

A

Mand canine

longest root of any tooth is max canine

92
Q

Shape of cross section of root of mand canine

A

irregularly oval or ovoid

93
Q

In the cross section of a mandibular canine root at the CEJ, what is the shape and where is it wider

A

Ovoid shape

wider mesio-distally at the labial end

94
Q

In cervical cross section (lower down on root) the root of the mand canine is what shape

A

flattened in a mesio-distal direction

95
Q

Compare max and mand canine proximal contact areas

A

mandibular canine contacts are more incisal than max

-think of mand incisors, all even, all high

96
Q

The convexity of mandibular canine

A

continuous convex facial surface from incisal to apical end

continuous C shape from crown tip to root apex

97
Q

Mandibular canine incisal edge is what direction from long axis

A

lingual
see more of the facial aspect when viewing from occlusal
opposite from max canine

Boards - Dental Anatomy Facts from videos (7 decks)

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