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30 Cards in this Set

  • Front
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arch trait incisor
mandibular
- generally smaller
- look more alike
-more similar sized
-crowns are flatter on M and D
contact closer to incisal edge
-wider F-L than maxillary wider M-D
-longer roots proportional to crowns
-smoother lingual surfaces
Traits - Maxillary central
- Maxillary lateral

labial view
Central
-larger crown, wider cervical
-MI angle = right angle
-D contact is more incisal
-less likely root tip deflection
-I edge more horizontal

Lateral
-narrower
-cervical line
-MI angle is rounder
- D contact mid 3rd
-Root tip w/ distal deflection
-I edge slopes D
MAXILLARY right from left incisor lingual view
central
-cingulum toward distal
-D marginal ridge more curved than mesial

Lateral
- longer, straighter mesial marginal ridge

BOTH have longer mesiolingual marginal ridge
Maxillary Incisors Labial view
- crown longer IC than MD
- narrowest cervical 1/3
- lateral incisor much more narrow MD
- lateral incisor labial surface more convex than central incisor
-lateral mamelons are less common and prnounced
maxillary incisors labial view
Max. centrals
- (MI) angle is nearly right
- (DI) angle more rounded

Lateral I
-(MI) and (DI) angles are more round
-MI is more acute than DI

Both
-mesial contacts on I 3rd
- distal contacts on I 3rd more cervical
Maxillary incisors root
CI vs LI
-CI root smallest of all teeth proportional to crown LI is longer relatively
-CI root as thick cervically MD FL
-CI root no apical bend common
-LI root commonly bent distally
Maxillary central vs Lateral Traits
Central
-Deeper lingual crown concavity
-root outline more curved on lingual than facial
-lateral slightly shallow lingual crown concavity
-more even root taper facially than lingually
Maxillary incisors Crest of contour
for both this is found on the cervical 3rd faciolingually
Maxillary central vs lateral incisal view
-Central outline roughly triangular
-cingulum off center distally
-incisal edge curves MD

Lateral
-crown more round or oval
-cingulum centered
-incisal edge straighter
Mandibular Central vs Lateral Lingual view
central cant tell central R from L
-cingulum centered
-same length M D marginal ridges

Lateral
-cingulum distal to center
-longer mesial marginal ridge
Mandibular central vs lateral
labial view
Central
-more symmetrical crown
-min. D and M bulge
-prox. contacts are on same level M D
*smaller than lateral
Mandibular central and lateral Incisors crest of contour proximal view
The labial crest of contour are in cervical 3rd for both type
canine maxillary vs mand.
Maxillary
-crown wider MD
- cusp angle sharper/acute
- M cusp ridge shorter than D
- more pronounced labial ridge
- more pointed root tip

Mand.
-crown narrower MD
- cusp more blunt
-M cusp ridge much shorter than D
canines max. vs mand prox contacts
mesial max. incisal/mid. jxn
mand. incisal 3rd
distal max. middle 3rd
mand. incisal/mid jxn
canines
mand. vs max.
lingual
max.
-more prominent lingual anatomy
-cingulum centered

mand.
-smoother lingual surface
-cingulum centered or to distal
canine
max. vs mand.
proximal
max.
-more prominent cingulum
- crest of contour (labial) less cervical/more pronounced

Mand.
-crest of curvature more vercial/ less pronounced
- less prominent cingulum
-cusp tip lingual to root axis line
canines
max. vs mand.
cusp tip
max.
-cusp tip usually labil to root axis line

mand.
-cusp tip centered or lingual to -root axis line
canine
max. vs mand.
crest of curvature
max.
- as with all of crest of curvature is in the cervical 3rd facially

mand.
-more cervical
canine
max. vs mand.
incisal view
max.
-less symmetry
-centered faciolingually
-centered cingulum

Mand.
-more symmetry
-much greater FL than MD
- cingulum distal
dentition formations
primarys emerge 6-28(+/- 4) months

mixed dentition 6-12 yrs
-perm emergence
- pre molars 1st

completed except 3rd molars by 14-15 yrs

-3rds 18-25yrs
Four tooth tissue
Alveolar process
alveolus
cementum----hard tissue
dentin-----------hard tissue
enamel---------hard tissue

pulp- soft

Alveolar process: portion of serving as support for tooth

Alveolus: bone of the tooth socket
surface and ridges

labial
buccal
occlusal
lingual
facial
labial: incisor and k9 surface towards lips

buccal- PM and molar surface facing cheek

facial: buccal + labial

lingual: all surfaces facing the tongue

Occlusal: surface of premolar and molars that contacts those of opposite jaw.
line angle
point angle
line angle: formed by jxn of 2 surfaces and is named after ea (labioincisal)

Point angle: formed by jxn of 3 surfaces and derives its name from all. ( mesio labio incisal)
incisor function
-cut food
-enable articulate speech
-support the lip / appearance
-help guide mandible -posteriorly during cloing
incisor class traits
mamelons
lobes
mamelons: 3 rounded elevations on the incisal edge

lobes: 3 lobes (above) form facial surface

-4th lingual love forms lingual bulge - cingulum
incisor facial view
- widest mesiodistally at incisal edge
- narrowest in cervical 3rd
* maxillary arc more convex on distal than mesial
* mandibular arch symmetrical (facial view) (central mandibular)
incisor facial view
- mesioincisal MI angle are more acute than DI angles

-contact areas: Mesial on incisal 3rd , D more cervical except mand. central

-incisal edge slopes distally(before wear)

- cervical line curves towards the apex in the middle of facial surface.
incisor lingual view
incisor crown have more narrow L surface because M and O surfaces converge lingually toward the cingulum
incisor incisal view
-lingual fossa just incisally of cingulum

-marginal ridges converge toward cingulum

-crown tapers from proximal contacts towards cingulum
incisor proximal views
- wedge or triangle shaped

-facially more convex cervically when height of contour is greatest *lingual is the same*

-lingual surface is S shaped convex over cingulum, concave towards incisal edge

**concave portion is important guiding factor*