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DAM 1001 > Central & Lateral Incisors > Flashcards

Central & Lateral Incisors Flashcards

1
Q

WHat are central incisor numbers?

A

7,8,9,10
26,25,24,23

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2
Q

Function of incisors?

A
  1. Cut food
  2. articulate speech
  3. support lips
  4. guide mandible during movment
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3
Q

Natural dention uses what guidence?

A

Incisor and canine guidence

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4
Q

Dentures use what occlsuion?

A

Balanced occlsuion.

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5
Q

How many lobes do incisors have?

A

4 Developmental lobes

3 labial 1 lingual

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6
Q

Grooves on inciors that wear off eventually and if not signal incorrect occlusion

A

Mamelons

3 total one for each lobe

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7
Q

maxillary laterals are _____ than central shorter inciso-cervically than maxillary centrals

A

shorter

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8
Q

Mandibular incisors are all what?

A

Relatively the same lenght and width

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9
Q

Wear facets on maxillary incisors are where?

A

Lingual

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10
Q

Wear facets on mandibular incisors are where?

A

Facial

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11
Q

Maxillary incisal edge slope up _____ when viewing facially

A

Slope up distally

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12
Q

Inciors are shaped like a ____ and facially, the crowns tapers ____

A

Trapezoid, crown taper cervically.

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13
Q

On all inciors besides mandibular centrals the mesial contact is more _____ than the distal contact

A

Mesial more incisal

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14
Q

On maxillary incisors & Mandibular laterals the mesial corner is what?

A

More of a sharp right angel

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15
Q

Incisors

On maxillary central incisors the mesial and distal contacts are what?

A

Alligned at almost the same height on each side.

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16
Q

Incisors

For inciors, the contacts are all in the ___ 3rd

A

Inscial 3rd!

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17
Q

Incisors

All incisors, root tapers where

A

TOwards apex

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18
Q

Incisors

Which arch of inciors have more pronounced lingual anatomy and cingulum?

A

Maxillary. Mandibular still have small cingulum.

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19
Q

Maxillary incisors

Which inciors is narrower M-D.

A

Max Lateral

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20
Q

Incisors (class)

Where are crest of contours located??

A

Lingual and facial both on cervical 3rd

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21
Q

Incisors

When present, root depression is deeper where?

A

Distal!

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22
Q

Incisors

The** FL width > MD width **of all inciors BESIDEs which one?

A

Maxillary centrals

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23
Q

Incisors

SOMETIMES the root bends ____ but it is always straight on ______

A

Distally,
always straight on max centrals.

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24
Q

Incisors

The lingual fossa is _____ to the cingulum

A

Concave to the cingulum

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25
Q

Incisors

The marginal ridges go in what direction?

A

They taper from incisal edge to converge at the cingulum

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26
Q

Incisors

What arch of incisors hare wider FL than MD, with smoother linguaal surfaces.

A

Mandibular incisors

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27
Q

Mandibular incisors have the inscial edge postioned where in respect to the mid tooth axis?

A

Lingual to midtooth axis

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28
Q

Maxillary incisors have the inscial edge postioned where in respect to the mid tooth axis?

A

Facial to the mid tooth axis

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29
Q

On which arch of inciors are root depression more prominant?

A

Mandibular!

30
Q

In Maxillary incisors Is the mesial or distal root depression deeper?

A

DIstal deeper

31
Q

Max central or lateral?

WIder MD

A

Central

32
Q

Max central or lateral?

MI and DI edges are more rounded
*MI is still sharper though

A

Lateral

33
Q
A
34
Q

Max central or lateral?

Mesial & distal contact are both incisal 3rd of tooth.
DIstal contant is a tiny bit more cervical

A

Central

35
Q

Max central or lateral?

Both mesial and distal contact are in incisal 3rd. **but distal contact may be in middle 3rd of tooth*

A

Lateral

36
Q

Max central or lateral?

Root is much longer than crown. Large R:C

A

Lateral

37
Q

Max central or lateral?

Root length is pretty proprotionate to crown lenght. R:C close to 1.

root is still slightly longer though

A

Central

38
Q

Max central or lateral?

Root can have a slight distal bend, compared to its thicker straighter counterpart

A

Lateral

39
Q
A
40
Q

Max central or lateral?

Have a centered cingulum, much more lingual pits and fossa.

A

Laterals

41
Q

Max central or lateral?

DIstal cingulum to make room for interdental papilla, less pronouced pits and ridges

A

Central

42
Q

Maxillary laterals may have a ____, that extends past cingulum into the root resulting in more severe decay and periodontal disease

A

lingual (acessory) groove

43
Q

On the maxillary centrals, the ____ marginal ridge is longer due to the ____ postion of the cingulum

A

Mesial marginal ridge is longer, due to distal postion of the cingulum

44
Q

Max Central or Lateral?

May have a distolingual twist of the incisal edge due to the distal cingulum

A

Centrals

45
Q

On both maxilary centrals and laterals, the CEJ in the ____ is more incisal.

This feature is even more pronouced on centrals or laterals?

A

CEJ on mesial is MORE incisal!
Centrals mesial CEJ is the deepest!

46
Q

Max Central or Lateral?

Root has a flatter lingual outline in the cervical 3rd (wider) then tapers up.** WIDER.**
Proximal view

A

Centrals

47
Q

Max Central or Lateral?

Have a more round uniform taper of the root, from proximal view. Narrower

A

Centrals

48
Q

Max Central or Lateral?

MD width= FL width relatively from an incisal view

Oval shape

A

Laterals

49
Q

Max Central or Lateral?

MD width» FL width relatively from an incisal view

Triangular shaped

A

Centrals

50
Q

Mand Central or Lateral?

Very, extremly symmettryical.

A

Centrals..

51
Q

Mand Central or Lateral?

WIdder MD b.c it occludes with 2 teeth oposing.

A

Lateral

52
Q

Mand Central or Lateral?

Narrower MD, b.c it occludes with 1 tooth each oposing.

A

Centrals

53
Q

Where are the proximal contacts of the mandibular central incisors?

A

Both in inscial 3rd, **meisal contact in even more incisal. **

54
Q

Where are the proximal contacts of the mandibular central incisors?

A

Both in inscial 3rd, **meisal contact in even more incisal. **

55
Q

What is the trend of proximal contacts in the mandibular incisors?

A

Both contacts are in the incisal 3rd. But the **mesial contact **is always more incisal than the distal.

56
Q

Mand Central or Lateral?

Root MAY bend distally

A

Lateral

57
Q

In Mandibular incisors Is the mesial or distal root depression deeper?

A

Distal more depressed

58
Q

Mand Central or Lateral?

Has a distal cingulum resulting in a what?

A

Lateral, distolingual twist

59
Q

Mand Central or Lateral?

Have more curved CEJs on the mesial.

A

BOTH. but centrals might be more symmetrical.

60
Q

All mandibular roots are what?

A

Narrower MD and wider FL

61
Q

All mandibular incisors havea wider ____ dimenstion than a __

A

Wider FL, narrower MD

62
Q

Mand Central or Lateral?

Cingulum centered to the midroot axis

A

Central

63
Q
A
63
Q

Mand Central or Lateral?

A more distally curved incisal edge due to distal cingulum

A

Laterals

64
Q

Mand Central or Lateral?

Have a facial contour slightly convex and lingual contour decidedly convex (more curved)

A

ALL mandibular

65
Q

What incisors have centered cingulum?

A

Maxillary laterals, and Mandibular centrals

66
Q

What incisors have a distal cingulum?

A

Maxillary Centrals, Mandibular laterals.

67
Q

What shape of incisors can result in a flat triangle gap forming between the maxillary central incisors?

A

Trapezoid!

68
Q

Extremely deep, lingual, fossa’s with lots of pit, and decay is a characteristic of what shape style incisor?

A

Shovel shaped teeth!

69
Q

What inciors?

The distal proximal crest of curvature is more cervical than the mesial height of contour.
All expcept which?

A

Mandibular centrals! Symmertical.

70
Q

Whihc incisor?

This tooth has the largest curvature of the mesial cervical line.

A

Maxillary central incisor

DAM 1001 (13 decks)

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