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Dental Anatomy > Maxillary Incisors > Flashcards

Maxillary Incisors Flashcards

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
Q

Mandib. Lateral: Facial

  • Erupts @age:__
  • Slightly ___ than mandib central
  • Incisal edge slopes ___ toward __
  • DI angle=___ rounded than MI
  • M contact @ ___
  • D Contact @___
A
  1. 7-8
  2. Larger
  3. gingivally
  4. Distal
  5. More rounded
  6. Incisal third
  7. more cervically positioned but still incisal third
26
Q

Mandib Lateral: Lingual

  • ___ tapers towards lingual (___ NOT as much)
  • Distal Marginal ridge is ___ than Mesial Marginal ridge b/c ___
  • Cingulum location___
A
  1. Crown
  2. Root
  3. Slightly SHORTER
  4. B/c the incisal edge slopes gingivally towards the distal
  5. Distally positioned
27
Q

Mandib Lateral: Mesial

  • Broad ___
  • Root depression is present but shallower than mandib central.
A
  1. Facio-lingually
28
Q

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
A
  1. MORE
  2. Shorter
  3. Twisted
29
Q

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
30
Q

Max. Canine

  • Erupts___
  • developmental lobes__
  • Crown:root ratio___
  • M&D incisal ridges___
A
  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
Q

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
A
  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
Q

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
A
  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
Q

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=___
A
  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
Q

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
A
  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
Q

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)=___ &___
A
  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
Q

Max. Canine: Root

  • Longest root of all teeth
  • Wider ___ than ___
  • ___ pulp canal
  • apical third of root inclines __
A
  1. FL
  2. MD
  3. SINGLE
  4. Distially
37
Q 
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
A
  1. FL
  2. MD
  3. SINGLE
  4. Distially
38
Q

Mandib. Canine:

  • erupts @age__
  • generally the last tooth to be lost
  • ___ longest tooth in the mouth
A
  1. 9-10

2. 2nd

39
Q

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
A
  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
Q

Mandib canine: Lingual

  • L anatomy is ___ pronounced vs Max. Canine
  • Lingual taper
41
Q

Mandib Canine: Mesial

  • ___ facial curvature than Max. Canine
  • Lingual profile is ___ pronounced compared to Max. canine
  • Cusp tip= ___ to bisecting line
  • Root depression visible
A
  1. LESS
  2. LESS
  3. Lingual (Max. canine= Facial)
42
Q

Mandib canine: Distal

-D surface is ___ than M inciso-gingivally

43
Q

Mandib. Canine: Incisal

  • Crown= wider ___ than ___
  • Cusp tip= is ___ and __ to center of crown
A
  1. FL
  2. MD
  3. Mesial
  4. Lingual (so more facial surface is visible)

Dental Anatomy (1 decks)

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