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DAM 1001 > Central & Lateral Incisors > Flashcards

Central & Lateral Incisors Flashcards

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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
# Incisors The marginal ridges go in what direction?
They taper from incisal edge to converge at the cingulum
26
# Incisors What arch of incisors hare wider FL than MD, with smoother linguaal surfaces.
Mandibular incisors
27
Mandibular incisors have the inscial edge postioned where in respect to the mid tooth axis?
Lingual to midtooth axis
28
Maxillary incisors have the inscial edge postioned where in respect to the mid tooth axis?
Facial to the mid tooth axis
29
On which arch of inciors are root depression more prominant?
Mandibular!
30
In Maxillary incisors Is the mesial or distal root depression deeper?
DIstal deeper
31
# Max central or lateral? WIder MD
Central
32
# Max central or lateral? MI and DI edges are more rounded *MI is still sharper though
Lateral
33
34
# Max central or lateral? Mesial & distal contact are both incisal 3rd of tooth. **DIstal contant is a tiny bit more cervical**
Central
35
# Max central or lateral? Both mesial and distal contact are in incisal 3rd. **but distal contact may be in middle 3rd of tooth*
Lateral
36
# Max central or lateral? Root is much longer than crown. Large R:C
Lateral
37
# Max central or lateral? Root length is pretty proprotionate to crown lenght. R:C close to 1. | *root is still slightly longer though*
Central
38
# Max central or lateral? Root can have a slight distal bend, compared to its thicker straighter counterpart
Lateral
39
40
# Max central or lateral? Have a centered cingulum, much more lingual pits and fossa.
Laterals
41
# Max central or lateral? DIstal cingulum to make room for interdental papilla, less pronouced pits and ridges
Central
42
Maxillary laterals may have a ____, that extends past cingulum into the root resulting in more severe decay and periodontal disease
lingual (acessory) groove
43
On the maxillary centrals, the ____ marginal ridge is longer due to the ____ postion of the cingulum
Mesial marginal ridge is longer, due to distal postion of the cingulum
44
# Max Central or Lateral? May have a distolingual twist of the incisal edge due to the distal cingulum
Centrals
45
On both maxilary centrals and laterals, the CEJ in the ____ is more incisal. This feature is even more pronouced on centrals or laterals?
CEJ on mesial is MORE incisal! Centrals mesial CEJ is the deepest!
46
# Max Central or Lateral? Root has a flatter lingual outline in the cervical 3rd (wider) then tapers up.** WIDER.** Proximal view
Centrals
47
# Max Central or Lateral? Have a more round uniform taper of the root, from proximal view. **Narrower**
Centrals
48
# Max Central or Lateral? MD width= FL width relatively from an incisal view Oval shape
Laterals
49
# Max Central or Lateral? MD width>> FL width relatively from an incisal view Triangular shaped
Centrals
50
# Mand Central or Lateral? Very, extremly symmettryical.
Centrals..
51
# Mand Central or Lateral? WIdder MD b.c it occludes with 2 teeth oposing.
Lateral
52
# Mand Central or Lateral? Narrower MD, b.c it occludes with 1 tooth each oposing.
Centrals
53
Where are the proximal contacts of the mandibular central incisors?
Both in inscial 3rd, **meisal contact in even more incisal. **
54
Where are the proximal contacts of the mandibular central incisors?
Both in inscial 3rd, **meisal contact in even more incisal. **
55
What is the trend of proximal contacts in the mandibular incisors?
Both contacts are in the incisal 3rd. But the **mesial contact **is always **more incisal** than the distal.
56
# Mand Central or Lateral? Root MAY bend distally
Lateral
57
In Mandibular incisors Is the mesial or distal root depression deeper?
Distal more depressed
58
# Mand Central or Lateral? Has a distal cingulum resulting in a what?
Lateral, distolingual twist
59
# Mand Central or Lateral? Have more curved CEJs on the mesial.
BOTH. but centrals might be more symmetrical.
60
All mandibular roots are what?
Narrower MD and wider FL
61
All mandibular incisors havea wider ____ dimenstion than a __
Wider FL, narrower MD
62
# Mand Central or Lateral? Cingulum centered to the midroot axis
Central
63
63
# Mand Central or Lateral? A more distally curved incisal edge due to distal cingulum
Laterals
64
# Mand Central or Lateral? Have a facial contour slightly convex and lingual contour decidedly convex (more curved)
ALL mandibular
65
What incisors have centered cingulum?
Maxillary laterals, and Mandibular centrals
66
What incisors have a distal cingulum?
Maxillary Centrals, Mandibular laterals.
67
What shape of incisors can result in a flat triangle gap forming between the maxillary central incisors?
Trapezoid!
68
Extremely deep, lingual, fossa's with lots of pit, and decay is a characteristic of what shape style incisor?
Shovel shaped teeth!
69
# What inciors? The distal proximal crest of curvature is more cervical than the mesial height of contour. All expcept which?
Mandibular centrals! Symmertical.
70
# Whihc incisor? This tooth has the largest curvature of the mesial cervical line.
Maxillary central incisor

DAM 1001 (13 decks)

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