Maxillary Incisors Flashcards

(43 cards)

1
Q

__ incisors are wider mesodistially than faciolingually

A

Maxillary

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2
Q

__ incisors are wider FL than mesiodistally

A

Mandibular

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3
Q

__ anterior teeth have more defined Lingual anatomy than __ anterior teeth

A
  1. Maxillary

2. Mandibular

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4
Q

Max. Central: Facial

  • Crown is longer __ than mesiodistally.
  • M outline is __ with contact @ __
  • D outline is more __ with contact @ __
  • Mesio incisal angle=__ and Distal incisal angle=__
A
  1. inciso-gingivally
  2. Straight
  3. incisal 1/3
  4. More rounded than M
  5. jxn of incisal and middle third
  6. aprox. 90 degrees
  7. more rounded
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5
Q

Max. Central incisor is the widest __ of any of the anterior teeth

A
  1. Mesiodistially
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6
Q

Max. Central: Lingual

-__ than facial aspect mesio-distially due to __

A
  1. Narrower

2. Lingual taper

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7
Q

Max. Central: Mesial

  • Crown is ___
  • Bisecting line passes thru the center of the tooth will bisect __&__
  • Facial & Lingual height of contour=__
  • Due to the turn of the tooth along the arch.. all lingual convexities are ___
  • CEJ
A
  1. wedge shaped
  2. Root apex
  3. incisal ridge (therefore inline w center of root)
  4. Cervical third
  5. Visible
  6. Mesial CEJ is most pronounced of all teeth
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8
Q

Max. Central: Distal

  • Prox. Contact area= more ___ positioned than M (@jxn of incisal & middle thirds)
  • Due to the turn of the tooth along the arch, you see more of the ___ surface and ___ is NOT visible from distal
A
  1. cervically/Gingivally
  2. Facial
  3. Mesial Marginal ridge
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9
Q

Max. Central: Incisal

-___ outline

A
  1. Triangular outline
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10
Q

Max. Central: Root/ cervical x-section

  • crown:root ration=__
  • __ pulp canal
  • X-section shows and external____ outline & pulp outline
  • Many Max. Centrals have ___ canals
A
  1. 1:1 1/2
  2. ONE
  3. rounded triangular
  4. Accessory
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11
Q

Max. Lateral

  • Erupts @ age:
  • ___ variable than all teeth except 3rd molar
  • Aka:__
  • Root inclines___
A
  1. 8
  2. More
  3. Peg lateral
  4. distally
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12
Q

Max. Lateral: Facial

  • exhibits ___ curvature than Max. centra
  • incisal edge may slope ___ towards ___
  • M contact: ___
  • D contact: ___
A
  1. More
  2. Gingivally
  3. Distal
  4. jxn of incisal and middle third
  5. middle third
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13
Q

Max. Lateral: Lingual

  • ___ pronounced lingual anatomy of all anteriors
  • Crown tapers __
A
  1. Most… Cingulum, marginal ridges, fossa- more pronounced
  2. Lingual taper
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14
Q

Max. Lateral: Mesial

  • Incisal edge is ___ over center of tooth
  • Cingulum= more ___ than max central
A
  1. Centered

2. Convex

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15
Q

Max. Lateral: Distal

  • Facial Contour is ____ rounded that Max. central
  • ___ groove visible if present
A
  1. More rounded

2. Distal Lingual groove

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16
Q

Max. Lateral: Incisal

  • More ___ outline Facially and lingually than central (i.e LESS __ looking)
  • Prox. Contact area are in the __ of the ___third of crown & inline w/ incisal edge
  • Marginal ridges and cingulum= __ prominent that max. central
  • Cingulum is ___ centered compared to Max central
A
  1. Convex
  2. Less triangular
  3. Middle
  4. Middle
  5. more
  6. More
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17
Q

Max. Lateral: Cervical X-section

  • __ outline
  • wider ___ than ___
  • Facial aspect= wider MD compared to __
A
  1. Ovoid outline(aswell as pulp)
  2. Facio-lingually
  3. Mesio-distially
  4. Lingual bc of Lingual taper
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18
Q

Radicular Grooves

A

mostly @ palatal(lingual) aspect of Max. Lateral w distal position predominating

19
Q

Mandib. Central:

  • Erupts @ age:
  • narrowest & shortest of all perm. teeth
  • crown: root ratio
  • Can have 2 pulp canals
A
  1. age 6-7

2. 1:1

20
Q

Mandib. Central: Facial

  • Crown is bilaterally ___
  • incisal edge is straight & __to long axis of tooth
  • Root= short, conical and very narrow ___
A
  1. Bilaterally symmetrical
  2. perpendicular
  3. Mesio-distally
21
Q

Mandib. Central: Lingual

-___ distinct Marginal ridges, L fossa and cingulum compared to Max. central

22
Q

Mandib. Central: Mesial

  • Incisal edge in relation to bisecting line:__
  • Root is BROAD ____
  • Root surface:___
A
  1. Slightly lingual to bisecting line
  2. Facio-lingually
  3. Developmental depression(deeper the concavity, m,ore likely 2 pulp canals)
23
Q

Mandib Central: Incisal

  • Bilat. symmetrical
  • incisal edge is straight & __ to center
  • Incisal edge is ___ to the facio-lingual bisecting line
  • Wider ___ than ___
  • ___ crown outline
  • Cingulum= offset ___
  • More of ___ surface seen when viewed from incisal b/c of ___
A
  1. Lingual
  2. perpendicular
  3. FL
  4. MD
  5. Triangular
  6. Distally
  7. Facial
  8. bc of incisal edge being slightly lingual to tooth center
24
Q

Mandib. Central: Root/ Cervical x-section

  • root=single, short, & straight
  • root= narrow____ & broad ___
  • X-section shape=___
A
  1. MD
  2. FL
    3: Hour glass… Can see M&D developmental depressions
25
Mandib. Lateral: Facial - Erupts @age:__ - Slightly ___ than mandib central - Incisal edge slopes ___ toward __ - DI angle=___ rounded than MI - M contact @ ___ - D Contact @___
1. 7-8 2. Larger 3. gingivally 4. Distal 5. More rounded 6. Incisal third 7. more cervically positioned but still incisal third
26
Mandib Lateral: Lingual - ___ tapers towards lingual (___ NOT as much) - Distal Marginal ridge is ___ than Mesial Marginal ridge b/c ___ - Cingulum location___
1. Crown 2. Root 3. Slightly SHORTER 4. B/c the incisal edge slopes gingivally towards the distal 5. Distally positioned
27
Mandib Lateral: Mesial - Broad ___ - Root depression is present but shallower than mandib central.
1. Facio-lingually
28
Mandib Lateral: Distal - ___ of Incisal ridge shows b/c distal surface is ___ inciso-gingivally than mesial - Crown is slightly ___ which allows you to see more of labial surface
1. MORE 2. Shorter 3. Twisted
29
Mandib. Lateral: Incisal - Crown appears ___ @its base - Incisal edge is NOT perpendicular to long FL bisecting line bc Distal aspect of incisal edge is more lingually positioned
1. twisted
30
Max. Canine - Erupts___ - developmental lobes__ - Crown:root ratio___ - M&D incisal ridges___
1. 11-12 2. 4 developmental lobes (3F/1L) 3. 1:2.. Max. Central= largest tooth in mouth 4. The cusp has a M&D incisal ridge... Mesial half of crown contacts Lateral incisor and distal contacts P1...Therefore the contact areas of Max. Canine are @ diff Lvls cervico-incisally
31
Max. Canine: Facial - Cusp tip is ___ in relation to center of root but ___ to center of crown - M contact: @___ - D contact @___ - M cusp ridge is ___ than Distal - Prominent facial ridge(middle lobe) that is ___ to center - Crown & root are narrower ____ than Max. Central
1. in-line 2. Mesial 3. jxn of incisal and middle thirds 4. Middle third--> more gingivally positioned than M contact 5. SHORTER... Therefore the Cusp tip is offset mesially 6. Mesial 7. MD
32
Max. Canine: Facial - Cusp tip is ___ in relation to center of root but ___ to center of crown - M contact: @___ - D contact @___ - M cusp ridge is ___ than Distal - Prominent facial ridge(middle lobe) that is ___ to center - Crown & root are narrower ____ than Max. Central
1. in-line 2. Mesial 3. jxn of incisal and middle thirds. 4. Middle third--> more gingivally positioned than M contact (marked concavity btween contact area and cervical line 5. SHORTER... Therefore the Cusp tip is offset mesially 6. Mesial 7. MD
33
Max. Canine: Lingual - Prominent cingulum (centered over root) & Marginal ridges - Lingual ridge: Extends from ____ to ___ which divides L fossa into 2 fossae(__ &__) - Lingual aspect of root& crown= Narrower than Facial ___ due to ___ - B/c of the lingual taper, root depressions are visible on M&D and their fxn=___
1. Cingulum to 2. Cusp tip 3. ML fossa(smaller) 4. DL fossa (larger) 5. MD 6. Lingual taper 7. furnish the secure anchorage the tooth in the maxilla,... D root depression= deeper than M
34
Max. Canine: Mesial - Crown shape=__ - Wider ___ than max. Central - L outline = ___ @ cingulum - Prox. Contact @___ - Cusp tip is ___ to center of crown - Root apex is ___ to bisecting line
1. Wedge shaped 2. FL 3. Convex... The cingulum is 1/2 the incisocervical dimension (cervical line to incisal edge) 4. jxn of incisal and middle third (centered btween facial and incisal surface) 5. Facial 6. Lingual
35
Max. Canine: Incisal - Outline ____ symmetrical - Cusp tip= ___ &___ to center of the crown - FL dimension is ____ than MD - Prox. Contact, Cusp slopes (M&D), and cusp tip ____ - Cingulum=___ & centered ___ - Facial ridge(middle lobe)=___ &___
1. NOT (M half flat and broad FL... D half=highly convex & Narrow FL) 2. Mesial 3. Facial 4. Greater 5. on a straight line 6. Prominent 7. Centered mesio-distally 8. Prominent 9. Mesial to center of crown
36
Max. Canine: Root - Longest root of all teeth - Wider ___ than ___ - ___ pulp canal - apical third of root inclines __
1. FL 2. MD 3. SINGLE 4. Distially
37
``` Max. Canine: Root/ cervical x-section -Longest root of all teeth -Wider ___ than ___ -___ pulp canal -apical third of root inclines __ Root canal wide FL and narrow MD ```
1. FL 2. MD 3. SINGLE 4. Distially
38
Mandib. Canine: - erupts @age__ - generally the last tooth to be lost - ___ longest tooth in the mouth
1. 9-10 | 2. 2nd
39
Mandib. Canine: Facial - Narrower than Max. canine - M crown outline___ - M contact area@____ - D crown outline____ - D contact area___ - M cusp ridge=___ &___ than Distal (all more so than Max. canine) - Crown= ___ towards the ___ w/ respect to long axis of tooth - Cusp tip= ____ w/ center of root & ____ to center of crown - Sharp root
1. Relatively straight 2. incisal third near MI angle 3. MORE rounded than M (DI angle=more rounded 4. jxn of incisal and middle third 5. Shorter 6. Horizontal 7. Tilted 8. Distially 9. In-line 10. Mesial
40
Mandib canine: Lingual - L anatomy is ___ pronounced vs Max. Canine - Lingual taper
1.LESS
41
Mandib Canine: Mesial - ___ facial curvature than Max. Canine - Lingual profile is ___ pronounced compared to Max. canine - Cusp tip= ___ to bisecting line - Root depression visible
1. LESS 2. LESS 3. Lingual (Max. canine= Facial)
42
Mandib canine: Distal | -D surface is ___ than M inciso-gingivally
1. SHORTER
43
Mandib. Canine: Incisal - Crown= wider ___ than ___ - Cusp tip= is ___ and __ to center of crown
1. FL 2. MD 3. Mesial 4. Lingual (so more facial surface is visible)