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Dental Anatomy > Unique Characteristics and General Information (all teeth) > Flashcards

Unique Characteristics and General Information (all teeth) Flashcards

1
Q

The largest mesiodistal crown dimension of any anterior tooth

A

Maxillary Central Incisor

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2
Q

The squarest (least I-C and M-D dimensional difference) of any incisor

A

Maxillary central incisor

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3
Q

Greatest curvature on mesial surface than all other teeth (curvature of cervical line)

A

Maxillary central incisor

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4
Q

Long axis bisector passes through incisal edge

A

Maxillary central AND lateral incisors

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5
Q

Smallest mesio-distal crown dimension of any maxillary tooth

A

Maxillary lateral incisor

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6
Q

3 teeth with the most crown form variations

A

Maxillary lateral incisor

Maxillary 3rd molar

Manidular 3rd molar

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7
Q

Squareness of crown: least difference in ucco-lingual and mesio-distal dimensions of any anterior tooth

A

Maxillary lateral incisor

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8
Q

Greatest incisal edge curvature of any incisor

A

Maxillary lateral incisor

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9
Q

Most cervically located distal proximal contact of any incisor (and describe precisely where it is)

A

Maxillary lateral incisor (located halfway between incisal edge and cervical line)

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10
Q

Smallest mesiodistal, buccolingual and incisal-cervical dimensions of any tooth

A

Mandibular central incisor

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11
Q

Only tooth with symmetrical mesial and distal halves (bilaterally symmetrical crown)

A

Mandibular central incisor

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12
Q

Sharpest mesio-incisal AND disto-incisal angle of any tooth

A

Mandibular central incisor

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13
Q

Mesial and distal proximal contacts located at same level along incisal-cervical axis

A

Mandibular central incisor

Mandibular 1st premolar

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14
Q

Long axis bisector passes just buccal to incisal edge (3)

A

Mandibular central incisor

Mandibular lateral incisor

Mandibular canine

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15
Q

Distal half of cron rotated lingually over root

Rotation is greater than for any other tooth

A

Mandibular lateral incisor

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16
Q

Sharpest mesio-incisal angle (only) of any tooth

A

Mandibular lateral incisor

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17
Q

Consequence of not respected cervical anatomy

A

Inflammation (i.e. crowns are wrong shape or too deep beneath gingiva)

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18
Q

Diastema

A

A space between two teeth

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19
Q

Consequence of not respecting natural morphology when closing a diastema

A

Creation of a breeding ground for bacteria (higher risk for food and plaque accumulation) –> chronic infection –> alveolar bone loss

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20
Q

Define black triangle

A

Papilla relies on underlying bone for structure, so loss of bone –> loss of papilla –> black triangle

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21
Q

What may cause plaque accumulation on the root? What is the consequence?

A

Groove/depression/concavity on root

May compromise a patient’s ability to maintain good oral hygiene (can’t access)

In time, may lead to an inflammatory process and eventual loss of alveolar bone

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22
Q

Consequence of triangular incisor teeth

A

Contribute to incisally displace contact points –> inesthetic black triangles

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23
Q

Define peg laterals

A

Unusually small lateral incisors

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24
Q

Golden proportions

A

Use lateral incisors as reference

So central maxillary incisor = 161% view

Canine = 61% view

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25
Q

Define axial inclincation

A

Anterior teeth angle slightly towards the midline

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26
Q

Define gingival zenith

A

Highest most cervical point of gingiva, just distal of midline

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27
Q

Greatest overall length of any tooth (2)

A

Maxillary and mandibular canines

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28
Q

Greatest bucco-lingual crown dimension of any anterior tooth

A

Maxillary canine (center image)

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29
Q

Greatest distal bulge of any other tooth (more tooth structure extends lateral to the root)

A

Maxillary canine

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30
Q

Only anterior tooth whose cusp tip is buccal to the long axis bisector

A

Maxillary canine

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31
Q

Largest cingulum of any anterior tooth

A

Maxillary canine

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32
Q

Largest lingual ridge of any anterior tooth

A

Maxillary canine

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33
Q

Most bulbous-looking anterior tooth from a proximal view (substantial cervical bulk/prominence; height of contour)

A

Maxillary canine

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34
Q

Most prominent buccal ridge of any anterior tooth

A

Maxillary canine

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35
Q

Distal proximal contact is exactly in the middle; cnetered along the incisal-cervical and bucco-lingual axes

A

Maxillary canine

36
Q

Longest root of any tooth

A

Maxillary canine

37
Q

Greatest incisal-cervical crown dimension

A

Mandibular canine

38
Q

Crown and root form a straight mesial outline

A

Mandibular canine

39
Q

Convex (C-shaped) buccal contour

A

Mandibular canine

40
Q

Longest root in mandibular arch

A

Mandibular canine

41
Q

Define interincisal angles

A

Angle between the mesial and distal incisal edges of two adjacent teeth

42
Q

Define coronal borders

A

The most superior and inferior borders (buccal) on the anterior teeth

43
Q

Canine profile

A

Red = emergence profile

Black = central buccal plane

Green = cusp tip

44
Q

Only premolar where the mesial cusp ridge is longer than the distal cusp ridge

A

Maxillary 1st premolar

45
Q

Only tooth with a deep groove that crosses the marginal ridge

A

Maxillary first premolar

46
Q

Only tooth with a deep depression on mesial surface (mesial crown concavity)

A

Maxillary 1st premolar

47
Q

2 characteristics that make the maxillary first premolar particularly prone to caries

A

Mesial marginal ridge groove + mesial crown concavity

48
Q

Most symmetrical crown (from occlusal view) posterior tooth

A

Maxillary 2nd premolar

49
Q

Premolar where the buccal and lingual cusps are closest in height

A

Maxillary 2nd premolar

50
Q

Posterior tooth with the mesial and distal pits closest to each other

A

Maxillary 2nd premolar

51
Q

Tooth that has a mesio-lingual groove that separates the mesial marginal ridge from the lingual cusp

A

Mandibular 1st premolar

52
Q

Posterior tooth with the smallest bucco-lingual crown dimension

A

Mandibular 1st premolar

53
Q

Mandibular tooth with the least difference in bucco-lingual and mesio-distal dimensions

A

Mandibular 1st premolar

54
Q

Only tooth where the mesial contact is cervical to the distal contact

A

Mandibular 1st premolar

55
Q

Tooth where much of the occlusal surface is visible from the lingual view

A

Mandibular first premolar

56
Q

Tooth where the lingual cusp is much shorter than the buccal cusp

A

Mandibular first premolar

57
Q

Tooth with the largest difference between cusps

A

Mandibular first premolar

58
Q

Only tooth whose mesial marginal ridge is cervical to the distal marginal ridge

A

Mandibular 1st premolar

59
Q

Only tooth whose occlusal surface tilts lingually

A

Mandibular first premolar

60
Q

Tooth whose mesial marginal ridge tilts lingually at a 45º angle

A

Mandibular first premolar

61
Q

Only premolar with multiple lingual cusps

A

Mandibular 2nd premolar

62
Q

Only premolar with a lingual groove

A

Mandibular 2nd premolar

63
Q

Only premolar with a central pit

A

Mandibular 2nd premolar

64
Q

Tooth where the mesio-distal crown dimensions is greater on the lingual half of tooth

A

Mandibular 2nd premolar

65
Q

Tooth where the lingual height of contour is located in the occlusal 1/3 of crown

A

Mandibular 2nd premolar

66
Q

Describe the importance of interproximal contacts

A

Absence = food impaction between teeth -> periodontitis + bone loss

67
Q

Largest bucco-lingual crown dimension of any tooth

A

1st and 2nd maxillary molars

68
Q

Maxillary posterior tooth with the least difference in bucco-lingual and mesio-distal dimensions

A

Maxillary 1st molar

69
Q

Teeth where the palatal half of the tooth has greater mesio-distal dimension than the buccal (2)

A
  • Maxillary 1st molar
  • 3-cusp mandibular 2nd premolar
70
Q

Tooth with the cusp of Carabelli

A

Maxillary 1st molar

71
Q

Define the Cusp of Carabelli

A

A 5th cusp attached to the mesio-palatal cusp

72
Q

Teeth with an oblique ridge (3)

A
  • Maxillary 1st molar
  • Maxillary 2nd molar
  • Maxillary 3rd molar
73
Q

Teeth whose distal proximal contact is centered along the occlusal-cervical and bucco-lingual axes (5)

A
  • Maxillary 1st molar
  • Maxillary lateral incisor
  • Maxillary canine
  • Maxillary 2nd molar
  • Mandibular 2nd molar
74
Q

Smallest occlus-cervical crown dimension of any tooth

A

Maxillary 3rd molar

75
Q

Shortest root length of any maxillary tooth

A

Maxillary 3rd molar

76
Q

More distal root inclination than any other maxillary tooth

A

Maxillary 3rd molar

77
Q

Largest mesio-distal crown dimension of any tooth

A

Mandibular 1st molar

78
Q

Largest bucco-lingual crown dimension of any mandibular tooth

A

Mandibular 3rd molar

79
Q

Largest occlusal-cervical crown dimension of any mandibular molar

A

Mandibular 1st molar

80
Q

Longest root length of any molar

A

Mandibular 1st molar

81
Q

Great mesio-distal root separation of any molar

A

Mandibular 1st molar

82
Q

Tooth whose mesial root has the largest bucco-lingual dimension

A

Mandibular 1st molar

83
Q

Mandibular molar with a mseio-buccal crown prominence

A

Mandibular 2nd molar

84
Q

Smallest occlusal-cervical crown dimension of any mandibular tooth

A

Mandibular 3rd molar

85
Q

Most distal root inclination of any mandibular tooth

A

Mandibular 3rd molar

86
Q

Shortest root length of any mandibular tooth

A

Mandibular 3rd molar

87
Q

Define furcation involvement

A

Describes bone loss usually as a result of periodontal disease. It is when the space between the division of the roots is exposed = harder to clean for both dentist and patient

Dental Anatomy (6 decks)

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