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Tooth identification
Lecture 5
46
Biology
Undergraduate 4
12/09/2013

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Term
Mesioincisal angle is sharp (90 degrees) while the distoincisal angle is rounded
Definition
Maxillary Central Incisor
Term
Labial surface is relatively flat, convexity confined to cervial third.
Definition
Maxillary Central Incisor
Term
Marginal ridges and cingulum moderately pronounced
Definition
Maxillary Central Incisor
Term
Cervical line curvature is more pronounced than any other tooth
Definition
Maxillary Central Incisor
Term
Triangular in outline form, crown is wider mesiodistally than labiolingually.
Definition
Maxillary Central Incisor
Term
Roughly cone-shaped roots, slightly longer than the crown, triangular cross section.
Definition
Maxillary Central Incisor
Term
Rounded incisial ridge and rounded incisal angles mesially and distally, crown is small in all dimensions as compared to central incisor. Peg Lateral possible.
Definition
Maxillary Lateral Incisor
Term
Lingual fossa is more concave and circumscribed than on maxillary central incisor, often deep developmental groove on distal side of cingulum, deep faults and pits are often found in deep portions of the grooves.
Definition
Maxillary Lateral Incisor
Term
Mesiodistal width of crown is relatively narrow, labial profile is distinctly rounded, the outline is ovoid form.
Definition
Maxillary Lateral Incisor
Term
Root usually has definite distal bend in apical third and is ovoid in cross section
Definition
Maxillary Lateral Incisor
Term
Has pointed cusp instead of incisal edge, labial surface strongly convexed with labial ridge extending from cervical ridge to cervical line
Definition
Maxillary Cuspid
Term
Distance from cusp tip to mesial contact area is shorter than distance to distal contact area, cusp tip lies mesial to long axis
Definition
Maxillary Cuspid
Term
Only cusp tooth with functional lingual surface.
Definition
Maxillary Cuspid
Term
Tooth is very wide at cervical third of both crown and root, cusp tip lies labial to long axis or crown.
Definition
Maxillary Cuspid
Term
Labiolingual dimension is wider or same size as mesiodistally, incisal aspect of crown is asymmetric.
Definition
Maxillary Cuspid
Term

Longest and strongest root in the human dentition, depression along distal surface is deeper than on mesial surface

 

Definition
Maxillary Cuspid
Term
Mesial slope is long and straight, distal slope is short and curved, has 2 cusps with lingual cusp being shorter than labial.
Definition
Maxillary First Premolar
Term
Central groove extends over mesial marginal ridge and forming a spillway and mesial developmental groove that runs along mesial surface and ends in large shallow concavity where the interradicular groove continues to bifurcated area, Bifurcation=1 lingual root, 1 buccal root.
Definition
Maxillary First Premolar
Term
Occlusal Outline is Hexagonal.  Buccolingual dimension  is greater than mesiodistal.
Definition
Maxillary First Premolar
Term
If there is single root there will be two pulp canals
Definition
Maxillary First Premolar
Term
Smallest crown of maxillary premolars
Definition
Second Maxillary Premolar
Term
Mesial slope of buccal cusp is less than distal slope, buccal cusp is generally same height as lingual.
Definition
Maxillary Second Premolar
Term
Crown occlusal outline is ovoid
Definition
Maxillary Second Premolar
Term
One root, usually longest of maxillary premolars, possibility of two roots, two root canals not uncommon.
Definition
Maxillary Second Premolar
Term
2 Buccal cusps, MB cusp and DB cusp, wider buccolingually than mesiodistally
Definition
Maxillary First Molar
Term
Has extra cusp that is non-functional mesiolingually, lingual root is longest, mesiolingual cusp is longest, distolingual cusp is spheroid and smooth
Definition
Maxillary First Molar
Term
Outline of crown is rhomboidal, occlusal table consists of Trigon and Talon, prominent oblique ridge from DB cusp to ML cusp.
Definition
Maxillary First Molar
Term
3 roots, 4 canals, two MB, one lingual and one buccal
Definition
Maxillary First Molar
Term

3 different types of crowns, roots tend to be closer together.

 

Definition
Maxillary Second Molar
Term
No fifth cusp, less rhomboidal overall and more heart shaped.
Definition
Maxillary Second Molar
Term
3 roots,mesiobuccal root tends to curve toward distal in apical 1/3.
Definition

Maxillary Second Molar

 

Term
Has triangular or heart shaped occlusal outline
Definition
Maxillary Third Molar
Term

 


Narrowest mesiodistal tooth of all incisors. Bilaterally symmetrical. Mesial & distal incisal angles are 90 degrees. Root is narrow and conical
Definition
Mandibular Central Incisor
Term
Labiolingual is wider than Mesiodistal. Smallest tooth in the mouth. Occludes with only one opposing tooth. Triangular outline
Definition
Mandibular Central Incisor
Term
Mesiodistal angle is sharp and distinct. Distoincisol angle is rounded & cervically situated. Lingual aspect is not symmetrical
Definition
Mandibular Lateral Incisor
Term
Crown twisted slighlty distally on its root. Root is longer than central incisor. Outline is triangular
Definition
Mandibular Lateral Incisor
Term

 

 

Cusp does not appear as pointed as the max. canine. Root is narrower mesiodistally than labiolingually. may have bifurcated roots, or 1 root w/ 2 canals. If two roots; one would be lingual & and one labial
Definition
Mandibular Cuspids
Term
Crown form buccal is bilaterally asymmetrical. Buccal cusp is long and sharp. Lingual cusp is much lower than the buccal cusp
Definition
Mandibular First Premolar
Term
Crown is ditinctly tilted lingually. Occlusal outline is diamond. Occlusal table is triangular in outline. One root w/ marked tapering toward the lingual and narrower mesiodistaly than the mandibular second premolar
Definition
Mandibular First Premolar
Term
Crwon is bilaterally symmetrical. Mesiolingual cusp is larger than the distolingual. Larger crown than first premolar
Definition
Mandibular Second Premolar
Term
3 forms: H, Y, and U. Occlusal outline is square or round.
Single root
Definition
Mandiular Second Premolar
Term

2 Developmental grooves: Mesiobuccal & distobuccal.

3 fairly flat buccal cusps MB, DB, and distal. Distal cusp is shortest and rounded. Lingual cusps higher than buccal cusps. Crown is widest mesiodistally

Definition
Mandibular First Molar
Term
Roots are widley seprated and vertical. 5 cusps: 3 buccal & 2 Lingual. Distal cusp is shortest and rounded, 5th funct. cusp. Occlussal outline is Pentagonal. Bifurcated root: Mesial (2 canals) & Distal (1 canal)
Definition
Mandibular First Molar
Term
One developmental buccal grove. Crown is smaller than mandibular first molar. Two buccal cusps: MB & DB
Definition
Mandibular Second Molar
Term
One developmental buccal grove. Crown is smaller than mandibular first molar. Two buccal cusps: MB & DB
Definition
Mandibular Second Molar
Term
Crown is noticeably shorter occlusocervical. Occlusal outline is rctangular. 4 cusps: MB, ML, DB, and DL. 1/3 of teeth have undivided mesial root canal. 
Definition
Mandibular Second Molar
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