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108 Cards in this Set
- Front
- Back
max m1 root with 2 canals
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mesiobuccal root
|
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3 roots
3 canals |
max m1
|
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wide B-L
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mesiobuccal root
|
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4th canal in MB
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15%
|
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4th canal
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lingual to mesiobuccal canal
|
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pulp horns prominent
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max m1
|
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highest pulp horns in max m1
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MB
ML |
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root canal join pulp chamber
|
apical to CEJ in all molars
|
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trifurcation
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max molars
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single root
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max/mand incisors
max/mand canines max pm2 mand pm1/pm2 |
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bifurcation in roots
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max pm1
mand molars |
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trifurcation
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max m1
max m2 |
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third longest root of any max teeth
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palatal root of max m1
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wider M-D root
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palatal of max m1
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longitudinal depression on lingual side
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palatal root of max m1
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concave on buccal surface
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palatal root of max m1
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max m1 palatal root apex
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in line with buccal groove
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roots much less spread apart
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max m2
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palatal root is straighter
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max m2
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root into max sinus during OMFS
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max m1
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mand molar : max molars
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5:4
major cusps |
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occlusal view mand molars
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rectangular
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occlusal view max molars
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rhomboidal
|
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2 roots m
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mand molars
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3 roots
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max molars
|
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pits/grooves on occlusal/buccal surface
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mand molars
|
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pits/groove on occlusal/lingual
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max molars
|
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wider M-D
|
mand molars
|
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wider F-L
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max molars
|
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equal sized lingual cusps
|
mand molars
|
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transverse ridge
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mand molars
|
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oblique ridge
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max molars
|
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oblique ridge is union of
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distal cusp ridge of MLC
& triangular ridge of DBC |
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fissured groove >
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max molars-lingual surface
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fissured groove =
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distolingual dev grooves
|
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occlusal cavity preps usually extended on lingual surface
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max molars
ditolingual dev groove= fissured groove |
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groove originates as
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occlusal pit
|
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groove terminates
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in a pit on lingual surface
|
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mand molar roots
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2 pulpal canals
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2 pulp canals found
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mesial root
|
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distal root of mand molar root
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one canal
|
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x-sec apical to bifurcation
of mand molar |
kidney shaped canal is found in distal root
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mand molar root-
MB canal > |
MB canal curves more than ML canal
|
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mand molar mesial root
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thin M-D
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mand molar mesial root
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concave on both mesial/distal surfaces
|
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smalles pulp horn in mand molar
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distal pulp horn
|
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higher pulp horn in mand molar
|
mesial
|
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max molar
shape of floor of pulp chamber |
triangular
|
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base of triangle of pulp chamber
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base= buccal canals
|
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apex of triangle
max molar |
palatal canal
|
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line connecting mesial canal with palatal canal in max molar
|
longest
|
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mand molar prox view
|
rhomboidal outline
|
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max molar prox view
|
trapezoidal
longest uneven side=base of crown |
|
perm molar cusp that gets smaller as move posterior
|
DL
|
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most obvious character that differentiates
m1, m2, m3 |
distolingual cusp
|
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primary cusp triangle
|
max molars
ML MB DB |
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max m1 distal marginal ridge=
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max m2 mesial marginal ridge
|
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elevations of enamel
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marginal ridges
|
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least variation in root inclination
|
max teeth
|
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greatest root inclination variation
|
mand centrals
mand canine |
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tip distally relative to long axis of root
|
mand molar
|
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HOC is lowered apically to middle third
|
mand molar
|
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placement of instruments sub-G more dificult
|
mand molar
|
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parotid duct opens on cheek surface near
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max M2
|
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stensons
|
parotid
|
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buccal aspect of
max m1 how many roots can you see |
3 roots
|
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max molar palatal root has
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concavities on facial/lingual
|
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max m1
mesial furcation |
close to cervical line
|
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deep dev groove on root trunk of
|
max m1
|
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deep dev groove on max m1
starts |
at bifurcation
|
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deep dev groove on max m1
terminates |
cervical line
|
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max m1 root trunk
distal surface |
concavity
|
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how many plane can the mandible move
|
3
-frontal -horizontal -sagittal |
|
frontal
|
up/down
|
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side/side
|
horizontal
|
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sagittal
|
forward/backward
|
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five factors of mand movement
|
1-initiatin position
2-types of motion 3-direction of motion 4-degree of movement 5-sig of movement |
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initiating position of mand movement
|
stable
easily reproduced |
|
types of motion
|
rotation
translation |
|
direction of motion
=planes |
frontal
sagittal horizontal |
|
sagittal section of mand movement
|
forwards/back
posselt's envelope |
|
posterior border movement of mandible
|
rotational movement
& translatinal movement |
|
movement of condyles
|
rotational movement
|
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terminal hinge axis
|
rotational movement
|
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movement of condyles returning to CR
|
rotational movement
|
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movement of mandible returning to where the condyle are in CR
|
translational
|
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muscle guided position
|
rest position of mandible
|
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3 jaw positions
|
-CO
-rest position of mandible -CR |
|
tooth guided
|
CO
|
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muscle guided position
|
rest position of mandible
|
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ligament guided position
|
CR
|
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postural position
|
rest position of mand
|
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tonic stretch reflex
|
rest position of mand
|
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condyles in
upper most midmost position in mand fossa |
?
|
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dont have translation
|
hinge axis movement
|
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CR= condyles are considered
|
terminal hine position
|
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normal swallowing
|
masseter muscle contracts
|
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tooth contacts are of longer duration
|
in swallowing than in chewing
|
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working side movement=
max m1-oblique ridge passes thru which sulcus of mand m1- |
DB sulcus
|
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intercuspal position:
max m1- MB triangular ridge opposes Man m1-MB groove |
-
|
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working side:
max m1-MBC passes mand m1-lingual groove |
-
|
|
working side:
max m2- MBC passes Mand m2-facial groove |
-
|
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postural position
|
no tooth contact
|
|
intercuspation of teeth determines
|
position of mandible in relation to max
|
|
free way space
|
2-6mm
|
|
supporting muscles of mandible
|
8 muscles of mastication
suprahyoids infrahyoids |
|
interocclusal distance=
|
freeway space
|
|
mand moves to left-
|
right condyle >
moves anterior downward medially |