Illustrated Dental Embryology, Histology, and Anatomy E-Book
This document describes insight on the permanent mandibular molars. It describes the anatomy of mandibular molars such as the size difference, the ridges, the cusps, and much more.
Mandibular Molars
Dotheyeruptbefore or after max molars Howmanyroots are there
6months lyear before 2 roots M D
what is the outlinefrom the occlusal view whichway do the roots tilt
Rectangularorpentagonal D
which way are the crownsinclined Has depression from CETtofurcation furcationis
Lingually the way down
Has 4 5 majorcusps Deep root concavities offorcalsurfaces ofbothroo
Aretheywider MD or BL
MD
Mandibular First Molars
when do theyerupt Largest mand tooth
6 7 years How many pulpcanals are present
when is root completion 3
9 10years How many cusps do they have
the first perm teethto erupt 5 MB DB D ML DL
dentitionperiod occasionally cusp missing rarely 6thcusppresen
ITfafbygifftp.ifd concavity on m surface of m root in furcaofboth
primary mandibular 2nd molars Are the roots the samelength
widest crown MD Yes if one is longer than it's m
where are the contactareas which root is wider stronger
occlusal 3rd w D more occlusal m
Buccal Lingual
outline outline
whatis theoutline for the m DBgroove what is the outline from the m
rfore
concave at Ces convex at CET
what is the outline for the geigel what is the outline from the
convexdue to cusp straight from the CEJ
Has a B cervicalridge outline smaller than B
Is it wider MD or Bu L groove divides the cusps
MD cusps
cusps pointed ML DL visible
Howmany B cusps are present Are the B D cusps visible
3 only cusp slightly flattened
can the cusps beviewedfrom this view Roots
Yes Is there a depression
which B cusp is the largest widest Yes deepdepression at bifurcation
, smallerthan ma of the bifurcation
whichis p y ifeng.ge 9th
4mm
whichis thelowestcusp
cusp Mesial
Grooves
which 2 grooves divide the cusps For all mandibular teeth the crown isincline
MBA DB which way on all proximalviews
slight depression or pit at the base ofeachgroove Lingually
sometimes DB groove is not seen it DB D where is the crown widestfrom the proximal view
cusp appear fused more cervically
roots concavity at ces continuing onto the root
How long is the bifurcation from the CET whichcusps are visible
3mm MB mu cusps visible
M D roots curve move toward mm ridge about1mmbelowcusptips
m root is broad straight tapering at
Is there a depression apical3rd
Yes at the furcation what is theheightof contour of the buccal
B cervicalridge it isrounded
Distal where is the L height of contour
middle3rd
some of B surface is visible what is the shape of the CEJ
How far down is the DMridge nearlystraight slopesupwardtowardlingual
mm groove is present
what is s fi eti
straight
DM groove present
Is there adepression on the root
Yes shallow depression most of the root
Occlusal
cusps ridges
what is theshape from occlusalview are there transverseridges
pentagonalshape no
whatarethe sizesfromlargesttosmallest what are the triangular ridges
MB ML DL DB D triangular ridge of MB DB ML
cusp is the smallest w a sharpcusp DL cusp
Grooves 5th cuspmakes other cusps offset
what are the grooves for the 1st mand molar Fossae
How manyfossae what are they
In mem.is
I'empiteiiiiijiiiiest re s central mtriangular triangular
utilized central pit is the deepest divides the centra
MB DB L groove into M D halves
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