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NBDE I > Dental Anatomy Permanent Incisors > Flashcards

Dental Anatomy Permanent Incisors Flashcards

1
Q

what is the primary function of incisors?

A

biting

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2
Q

which permanent tooth has the greatest FL axial inclination?

A

maxillary central incisors

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3
Q

which permanent tooth has the greatest cervical curvature of any other tooth?

A
  • maxillary central

- curvature is on the mesial

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4
Q

what are the 3 rules associated with cervical curvatures?

A

dips deeper on…

  • anterior teeth than posterior teeth
  • maxillary than mandibular
  • mesial than distal
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5
Q

which teeth are the only anterior teeth that are wider MD than FL?

A

maxillary central incisors

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6
Q

which tooth has the greatest MD crown dimension of any other anterior tooth?

A

maxillary central incisors

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7
Q

which two measurements of maxillary central incisors are nearly identical?

A

incisocervical and mesiodistal

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8
Q

the contact between a maxillary central and a lateral incisor makes the lingual embrasure (smaller/larger) than the facial

A

larger

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9
Q

the incisal embrasure between the maxillary centrals is (smaller/larger) than between the central and lateral

A

smaller

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10
Q

which permanent tooth has the most variation in crown shape?

A

maxillary lateral incisors

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11
Q

the ___ exhibits the most deviation in crown morphology, followed by the ___

A
  • 3rd molars

- maxillary lateral incisor

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12
Q

which tooth is most often in abnormal relation and contact with adjacent teeth?

A

maxillary lateral incisor

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13
Q

the ___ is most often congenitally missing, followed by ___

A
  • 3rd molars

- maxillary lateral incisors

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14
Q

the non-molar tooth that most frequently has a M and D pulp horn is the ___

A

maxillary central incisor

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15
Q

the non-molar tooth that is least likely to have a bifurcated root is the ___

A

maxillary central incisor

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16
Q

the anterior tooth that most likely would demonstrate lingual pit caries is the ___

A

maxillary lateral incisor

17
Q

what anatomical feature of maxillary lateral incisors complicates root planing?

A

DL groove

18
Q

the distoincisal angle of which teeth has the greatest convexity of all maxillary anterior teeth?

A

maxillary lateral incisor

19
Q

which teeth generally have the most prominent marginal ridges of all anterior teeth?

A

maxillary lateral incisors

20
Q

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

A

maxillary lateral incisors

21
Q

which tooth has the smallest MD crown width of any maxillary tooth?

A

maxillary lateral incisor

22
Q

which maxillary tooth has a MD measurement that is nearly identical to its FL measurement?

A

maxillary lateral incisor

23
Q

the MD width of the maxillary lateral incisor is (wider/narrower) than the maxillary central incisor

A

narrower

24
Q

which incisor has a distal contact that is the farthest cervical of any incisor?

A

maxillary lateral

25
Q

the maxillary lateral distal contact is located where?

A

centered both inciso-cervically and facio-lingually

26
Q

the maxillary lateral incisor is usually equal to or larger than the ___ in root length

A

maxillary central incisor

27
Q

how are mandibular central incisors distinguished from each other?

A

their cervical curvature, which is greater on the M than the D

28
Q

mandibular central and laterals most frequently have concave areas on which root surface?

A

M and D

29
Q

which tooth has the smallest crown dimensions of any tooth?

A

mandibular central incisors

30
Q

which tooth has the most symmetrical crown?

A

mandibular central incisor

31
Q

which tooth has the sharpest set of incisal angles (M and D)?

A

mandibular central incisors

32
Q

the proximal contacts of the mandibular central incisors are ___

A

at the same level (incisal)

33
Q

which permanent teeth generally only occlude with only one opposing tooth?

A

mandibular central incisors and maxillary 3rd molars

34
Q

___ is the first succedaneous tooth to erupt in the mouth

A
  • permanent mandibular central incisor

- remember, the permanent 1st molar is not succedaneous

35
Q

___ and ___ embrasures of mandibular central incisors may be the same size

A

B and L

36
Q

the crown of the mandibular lateral incisor tilts (mesially/distally) in relation to the long axis

A

distally

37
Q

the MD width of the mandibular lateral incisor is (narrower/wider) than the mandibular central incisor

A

wider

NBDE I (7 decks)

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