LLU Tooth Morphology of High Yield * Questions & Blue Book Questions
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| "O-C dimension is less than M-D and F-L (FL>MD>OC) " | "Maxillary Molars ; also: MAXILLARY MOLARS,
Maxillary 3rd Molar,
Maxillary 2nd Molar,
Maxillary 1st Molar,
(think ""Max=Fat...Molars Occlude"")"
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| "Presence of oblique ridge and distolingual groove* " | Maxillary Molars
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| What is the Maxillary geometric crown shape? | "Crowns are trapezoidal from facial, lingual, proximal views
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| What is the Maxillary Molar facial HOC? | Facial HOC at cervical third (like all permanent teeth)
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| What is the Maxillary Molar Lingual HOC? | "Lingual HOC at middle third -- on all _molars & _premolars.
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| Rank the root branches on the Maxillary Molars? | Usually 3 root branches: L>MB>DB (largest to smallest)
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| "Initial calcification: at birth* " | Maxillary 1st Molars
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| "DB cusp sharper* (sharpest of 4 cusps) " | Maxillary 1st Molars
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| "M-D width as wide or wider lingually than facially* ( very little lingual taper) ( MDL>=MDF) " | "Maxillary 1st Molars ;
(similar to Man.PreM.: FL>=MD)
"
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| Explain: Cusp of Carabelli* | "Maxillary 1st Molar
Lingual surface of ML cusp
Varies in size: non-existent to prominent"
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| "Lingual root depression* " | Maxillary 1st Molars
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| "Pronounced distal cervical crown/root concavity* " | "Max 1st premolar on mesial.
Max 1st molar on distal.
"
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| "Largest F-L dimension of any tooth* " | Maxillary 1st Molars
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| Maxillary 1st Molar - Geometric form | Rhomboidal OR Heart-shape (5-sided-pentagonal)(Leans Mesialy)
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| "Occlusal View: F-L and M-D dimensions more nearly similar* " | Maxillary 1st Molars
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| "M-D width as wide or wider lingually than facially* " | Maxillary 1st Molars
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| Cusp "Trigon" | "Maxillary 1st Molars .
Cusps: ML > MB > DB > DL (arrow in out in) "
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| "Oblique Ridge - About same height as the marginal ridges* " | "Maxillary 1st Molars .
Has Transvers and Oblique Ridge."
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| "Only root: Wider M-D > F-L* " | "Maxillary 1st Molars .
""M-D-Blade-like root""
"
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| "MB root 2nd largest. Apex in line with MB cusp tip.* DB root Smallest of three. " | "Maxillary 1st Molars .
So Think:
Lingual > MB > DB
Think: Long Molar Deep (roots)
on Max 1st M.
(arrow in out in - same as cusps)
"
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| "DB root area may have pronounced cervical concavity* " | Maxillary 1st Molars
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| "MB root tip in line with buccal groove* " | Maxillary 2nd Molars
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| "MB root apex in line with buccal groove* " | Maxillary 2nd Molars
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| "Maxillary 1st or 2nd? M-D and F-L dimensions more similar with _____ …narrower M-D with ______?" | "Maxillary 1st and 2nd Molars:
M-D and F-L dimensions more similar (square) with 1st,
…narrower M-D with 2nd*
"
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| "Maxillary 1st or 2nd? What are the MB Cusp or Buccal Groove to root alignments? " | "Maxillary 1st and 2nd Molars:
MB root apex in line with MB cusp tip with first,
Vs.
in line with buccal groove with second*
"
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| "Only maxillary tooth that has single opposing tooth* " | Maxillary 3rd Molar
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| "Smallest of all molars - shortest O-C dimension of any tooth* " | Maxillary 3rd Molar
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| "Shorter root: Crown to root ratio nearly 1:1* " | Maxillary 3rd Molar
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| "More supplemental occlusal grooves* " | Maxillary 3rd Molar
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| Has the shortest occlusocervical crown dimension of any tooth in the mouth | Maxillary 3rd Molar
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| The maxillary third molar has the shortest root in the mouth? | "Maxillary & Mandibular 3rd Molar .
Maxillary 3rd Molar has the shortest root in the mouth (according to four authors) vs. (two text books found:) Max. & Man. 3rd shared the shortest root dimension. "
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| Greatest morphologic variation of any teeth. | "Maxillary & Mandibular 3rd Molar .
"
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| The palatal root have a greater mesiodistal dimension than faciolingual dimension, a unique characteristic to these roots. | "Maxillary 1st Molar, &
Maxillary 2nd Molar"
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| The oblique ridge is a unique feature. | "Maxillary 1st Molar, &
Maxillary 2nd Molar"
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| The presence of a distolingual (distal oblique) groove is a unique aspect. | "Maxillary 1st Molar, &
Maxillary 2nd Molar"
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| The tricuspid (triangular) arrangement of the msiolabial, distofacial and mesiolingual cusps is unique. | "Maxillary 1st Molar, &
Maxillary 2nd Molar"
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| The mesiolingual cusp usually has two triangular ridges. | "Maxillary 1st Molar, &
Maxillary 2nd Molar"
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| The distal proximal contact is centered both faciolingually and occlusocervical, a characteristic shared with which four other teeth? | "Maxillary 1st Molar, &
Maxillary 2nd Molar:
shared with (
Max.Lat.Incisor,
Max.Canine, ,
Man.2nd.M. )"
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| Has the largest faciolingual dimension of any tooth? | Maxillary 1st Molar
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| The mesiodistal and faciolingual dimension are more nearly equal than any other posterior teeth? | Maxillary 1st Molar
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| "The mesiodistal dimension of the lingual half of this tooth is often slightly greater that the mesiodistal dimension of the facial half--a unique feature frequently shared with 3-cusp mandibular second premolars. | Maxillary 1st Molar
In other words, the this tooth does not have the usual lingual crown taper."
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| Has 5th cusp (Cusp of Carabelli) attached to the mesiolingual cusp, a characteristic not present on other ______? | Maxillary 1st Molar; not present on other Max.Molars
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| When viewed facially, the two facial roots curve laterally and then toward each other in the manner that resembles the angles of a pair of pliers, a unique form shared with only the _____________. | "Maxillary 1st Molar.
Shared with mandibular first molar."
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| Has the largest mesiodistal dimension of any tooth | Mandibular 1st Molars
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| The occlusocervical and faciolingual dimensions of the ____ are greater than any other mandibular ____ . | Mandibular 1st Molars
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| ___ have three facial cusps, as do some mandibuar _____, a unique characteristic among posterior teeth. | Mandibular 1st Molars; Mandibular 3rd Molars
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| Has the longest root of any molar. | Mandibular 1st Molars
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| Has the greatest mesiodistal root separation of any molar. | Mandibular First Molars
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| The mesial root has the greatest faciolingual dimension of any root in the mouth. | Mandibular First Molars
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| Has the shortest occlusocervical crown dimension of any mandibular tooth. | Mandibular 3rd Molars
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| Some dispute among authors of which tooth and which arch has the shortest root? | Mandibular and Maxillary 3rd Molars
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| _____ along with ____ have the greatest morphologic variation of any teeth. | Mandibular 3rd Molars, Maxillary 3rd Molors
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| Often have bulbous crowns, more bulbous than other mandibular teeth when viewed proximally. | Mandibular 3rd Molars
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| Some _____ have three facial cusps, as do ______, a unique characteristic amongst posterior teeth. | "Mandibular 3rd Molars;
Mandibular 1st Molars"
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| When viewed occlusally, the _______ has a mesiofacial prominance, a unique feature for _________ . | mandibular second molar , unique for mandibular molars.
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| The distal proximal contact is centered both faciolingually and occlusocervical, a characteristic shared with the distal contact on which four other teeth? | "Maxillary Lateral Incisor,
Maxillary Canine,
Maxillary 1st Molar, and
Maxillary 2nd Molar"
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| "Two lingual cusps about same size* " | "Mandibular Molars
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| "Wider M-D than F-L* " | "Mandibular Molars;
MD > FL ,
MD Man.M = FL Max.M
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| "Initial calcification: at birth* " | "Mandibular 1st Molars;
Cal En Er Rt
@0 3 6 9
"
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| "Buccal surface - largest surface of any tooth " | "Mandibular 1st Molars
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| "CE line more occlusal on lingual than buccal ~ 1 mm " | "Mandibular 1st Molars
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| "Root length of lingual > buccal length " | "Mandibular 1st Molars
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| "More symmetrical than first molar* " | "Mandibular 2nd Molars
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| "More symmetrical and simple than first molar* " | "Mandibular 2nd Molars
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| Less lingual taper than first | Mandibular 2nd Molar, less taper than 1st Molar
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| Five cusps: MB>ML>DL>DB>D (largest to smallest) and Lingual cusps are the tallest. | Mandibular 1st Molars
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| Shortest O-C of any mandibular tooth | Mandibular 3rd Molars
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| Largest crown in mouth | Maxillary 1st Molar
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