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108 Cards in this Set
- Front
- Back
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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
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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
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mand molars
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wider F-L
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max molars
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equal sized lingual cusps
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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
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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
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longest
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mand molar prox view
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rhomboidal outline
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max molar prox view
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trapezoidal
longest uneven side=base of crown |
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perm molar cusp that gets smaller as move posterior
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DL
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most obvious character that differentiates
m1, m2, m3 |
distolingual cusp
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primary cusp triangle
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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
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max teeth
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greatest root inclination variation
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mand centrals
mand canine |
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tip distally relative to long axis of root
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mand molar
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HOC is lowered apically to middle third
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mand molar
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placement of instruments sub-G more dificult
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mand molar
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parotid duct opens on cheek surface near
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max M2
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stensons
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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
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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
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3
-frontal -horizontal -sagittal |
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frontal
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up/down
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side/side
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horizontal
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sagittal
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forward/backward
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five factors of mand movement
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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
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stable
easily reproduced |
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types of motion
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rotation
translation |
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direction of motion
=planes |
frontal
sagittal horizontal |
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sagittal section of mand movement
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forwards/back
posselt's envelope |
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posterior border movement of mandible
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rotational movement
& translatinal movement |
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movement of condyles
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rotational movement
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terminal hinge axis
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rotational movement
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movement of condyles returning to CR
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rotational movement
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movement of mandible returning to where the condyle are in CR
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translational
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muscle guided position
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rest position of mandible
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3 jaw positions
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-CO
-rest position of mandible -CR |
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tooth guided
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CO
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muscle guided position
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rest position of mandible
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ligament guided position
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CR
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postural position
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rest position of mand
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tonic stretch reflex
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rest position of mand
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condyles in
upper most midmost position in mand fossa |
?
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dont have translation
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hinge axis movement
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CR= condyles are considered
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terminal hine position
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normal swallowing
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masseter muscle contracts
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tooth contacts are of longer duration
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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 |
-
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working side:
max m2- MBC passes Mand m2-facial groove |
-
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postural position
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no tooth contact
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intercuspation of teeth determines
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position of mandible in relation to max
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free way space
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2-6mm
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supporting muscles of mandible
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8 muscles of mastication
suprahyoids infrahyoids |
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interocclusal distance=
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freeway space
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mand moves to left-
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right condyle >
moves anterior downward medially |
