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NBDE 1 Dental anatomy > B&B tooth morph > Flashcards

B&B tooth morph Flashcards

1
Q

Anterior Tooth with greatest axial inclination?

A

Maxillary central incisor

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2
Q

Anterior tooth wider mesiodistally than facio-lingual

A

Max. central

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3
Q

Proximal view of all incisors is the shape of the crown?

A

triangular

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4
Q

Most widely varied form anterior tooth?

A

max laterals

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5
Q

Distinguishing characteristic of maxillary lateral incisor

A

distal lingual groove- prone to carries in lingual pit &complicates scaling.

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6
Q

Tooth has a distolingual pit & groove that may extend past CEJ

A

max. lat. incisor

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7
Q

Longest of all maxillary teeth

A

maxillary canine

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8
Q

Tooth with most near vertical long axis?

A

max canine

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9
Q

Where is the cusp tip of the maxillary canine?

A

offset to facial and mesial from center

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10
Q

Tooth has a prominent cingulum and longest root of permanent teeth

A

max. canine

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11
Q

longest maxillary posterior crown?

A

max. 1st premolar

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12
Q

The buccal cusp of the maxillary first premolar is displaced toward the _____ while the lingual cusp is shorter and offset toward the ____

A

The buccal cusp of the maxillary first premolar is displaced toward the distal while the lingual cusp is shorter and offset toward the mesial

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13
Q

The only premolar with bifurcated root

A

Maxillary 1st premolar

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14
Q

Tooth has a mesiolingual groove that complicates cleaning and restoration

A

maxillary first premolar

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15
Q

Premolar with buccal and lingual cusps nearly the same size

A

max 2nd premolar

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16
Q

Buccal cusp of maxillary 2nd premolar leans toward the…

A

mesial

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17
Q

Premolar with wider facolingual than mesiodistal

A

maxillary 2nd premolar

18
Q

Root morphology of maxillary 2nd premolar

A

1 root 1 canal

19
Q

Tooth is broader lingually than buccally

A

max first molar

20
Q

The maxillary right 1st molar has a trapezoid shape with the obtuse angles being on the ____ cusps and acute on the ___

A

Obtuse: ML DB

Acute: MB DL

21
Q

This molar often has to be preped with two separate restorations due to a large oblique rigde

A

maxillary 1st molar

22
Q

Root morphology of maxillary 1st molar

A

3 roots. 3 or 4 canals (4th in mL root)

Mesolingual biggest and wide.

Palatal/lingual longest and flat

Distofacial: shortest smooth.

23
Q

Which teeth are likely to have a triangular shaped pulp cross section

A

max 1st and 2nd

24
Q

The maxillary 2nd molar has the longer _______ than maxillary 1st

A

root trunk

25
Q

The tooth that is most commonly heart shaped is the

A

maxillary 3rd molars.
2nd molar can also have heart shape

26
Q

If mamalons are not warn down, what can this indicate?

A

malocclusion

27
Q

Tooth that is twisted toward distal

A

mandib lat incisor

28
Q

tooth with longest crown in mouth

A

mandibular canine

29
Q

The cusp tip of the mandibular canine is shifted _______while the lingual cusp is shifted _______

A

The cusp tip of the mandibular canine is shifted mesial while the lingual cusp is shifted distal

30
Q

Tooth has a steep occlusal table and a distinctive mesiolingual developmental groove.

A

Mandibular 1st premolar

steep due to underdeveloped lingual cusp

31
Q

Tooth has mesial marginal ridge that is more cervical than the distal marginal ridge

A

mandibular 1st premolar

32
Q

Tooth that frequently has two separate mesial and distal pits that must be restored separately

A

mandibular 2st premolar

33
Q

premolar with two lingual cusps and a U shaped central groove

A

mandibular 2nd premolar

34
Q

Tooth with greatest mesial distal demention

A

mandibular 1st molar

only other teeth with wider MD than FL are: Max Cent&Lat

35
Q

Tooth often has caries in a buccal pit

A

mandib. 1st molar

36
Q

Teeth with wider mesio distal than facolingual

A

max central

max lateral

mandib 1st molar

37
Q

The root apicies of the mandib. 1st molar lye below the _______

A

mylohyoid line

38
Q

Root morphology of mandibular 1st molar

A

two roots, 2-3 canals

mesial often has 2 canals

mandib roots lingually inclined

39
Q

Most symetrical anterior?

Most symetrical molar?

A

mandib. central incisor
mandib. 2nd molar

40
Q

Tooth has plus shaped central grooves

A

mandib 2nd molar.

Similar features of mandib 1st molar.

Root apex below mylohyoid line

2 roots 3 canals

roots inclined lingually

41
Q
A

NBDE 1 Dental anatomy (9 decks)

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