canine presentation
TRANSCRIPT
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Similarities between Maxillary And
Mandibular Canine…
prepared by Momal Ibrahim..
“Dow dental college , duhs”
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“Chronology”Maxillary Canine Mandibular Canine
Appearance of Tooth Bud:5 (m. i. u). 5 (m. i. u).
Initiation of Calcification : 4-5 months. 4-5 months.
Crown Completion :6-7 years. 6-7 years.
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Introduction: Canines are 3rd teeth from the mid line.“Canine eminence” is the elevated bone ridge over the labial portion of the roots.There are four canines placed at the corner of the mouth and hence called the ‘corner stones’ of the dentition.They have a single pointed cusp (also called cuspids):Mesial Contact : with lateral incisors. Distal Contact : with 1st premolar. Longest tooth in the entire arch (both crown & root).
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Functions of Canine:
Support.Esthetics.Cutting & tearing.Ideal smile.
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Ideal Smile rests On Canines.
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Labial Surface….
Labial aspect
Labial ridge
Cusp tip
Distal cusp ridge Mesial Cusp
Ridge
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Labial aspects:1. Shape: Pentagonal.2. Labial Surface: is convex.3. Incisal Outline: Mesioincisal slope
is generally shorter than distoincisal slope.
4. Cusp Tip: is located directly over the root center.
5. C.E.J: is curved towards the apex of the root.
6. Regardless of the prominency Labial ridge & Developmental depressions are present in both canines.
7. Height of contour: is in the cervical third.
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Lingual Surface….
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Lingual Aspects: 1. Mesial , Distal and Incisal
outlines: are similar to their labial surface.
2. Cervical outline: asymmetrical and offset towards distal.
3. Lingual ridge and Mesiolingual & Distolingual fossae are the only characteristic feature of canines.
4. Cingulum: is prominent in both canines.
5. Height of contour: is in the cervical third.
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Mesial Surface….
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Mesial Aspects:1. Shape: triangular like incisors.2. Dimensions: convex and widest
labiolingually of any anterior teeth .3. Labial outline: entirely convex with height of
contour in cervical third.4. Lingual outline: concane in incisal half and
convex in cingulum area.5. C.E.J: is evenly curved incisally.
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Distal Surface….
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Distal aspects:1. In both canines Distal
surface is similar to the Mesial surface of its own.
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Incisal Surface….
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Incisal aspects:1. Shape: roughly diamond .2. Cingulum: is offset towards distal.3. Labiolingually: crown is thicker towards
mesial while distally it is thinner.
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Root….
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Root:
1. Roots of both canines are single and the longest of the arch in which they are present.
2. Tip or Apex of the root is slightly offset towards distal.
3. Wider labiolingually than mesiodistally.4. Cross section at the neck of the root is
roughly ovoid.
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Message From My Side To All My 49 Friends…
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