Tooth Morphology

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Author:
edgarl
ID:
171230
Filename:
Tooth Morphology
Updated:
2012-09-16 15:36:24
Tags:
Anterior teeth
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Description:
decriptions and labeling
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  1. Maxillary Centrals
    • #8 and #9
    • Erupts between 7-8 yrs old
    • Widest mesiodistally of any anterior teeth
    • Medial incisal edge is sharp or acute
    • Mamelons can be there on eruption
    • Blunted apex
    • Has a Cingulum
  2. Mamelons
    Divots or humps on the incisal edge
  3. Attrition
    wearing away of tooth surface
  4. Imbrication Lines
    slight ridges on the cervical third of tooth
  5. Open Bite
    Anterior teeth have no contact point
  6. Cingulum
    Lingual side raised part of the cervical third
  7. Meisal and Distal CEJ
    Mesial side has more curvature than distal side
  8. Incisal Edge of Centrals
    Forms first at 8-12 months and root is last at about 10 years for completion
  9. Maxillary Laterals
    • #7 and #10
    • Erupts between 8-9 yrs
    • Very in form more than any other tooth
    • Can be peg shaped
    • More likely to be congentially missing
    • Deep developmental grooves to the root
    • Can have twisted roots or distorted crowns
    • Tubercle-lingual accessary cusp
  10. Avulsion
    complete displacement of the tooth from the socket
  11. Diastema
    open contact
  12. Mesiodens
    Maxillary central supranumary teeth
  13. Anodontia (Hypodontia)
    missing teeth
  14. Mandibular Centrals
    • #24 and #25
    • Erupts 6-7 yrs
    • smallest teeth in the mouth
    • occludes with only one opposing tooth
    • hardest to identify
  15. Mandibular Laterals
    • #23 and #26
    • Erupts 7-8 yrs
    • Greater facial curvature than the centrals
  16. Canine Eminence
    bony ridge above canine part of alveolar bone
  17. Lingual Fossa
    Shallow depression on the lingual surface of the tooth
  18. Maxillary Canines
    • #6 and #11
    • Erupts 11-12 yrs
    • Longest tooth in the mouth
    • Holding and tearing tools
    • Most stable teeth in the mouth
    • 4 developmental lobes (3 facial, 1 lingual)
    • Root curves toward the distal
    • root completed between 13-15
    • Evidence of calicifaction 4 months
    • Enamel completion 6-7 yrs
  19. Mandibular Canines
    • #22 and #27
    • Erupts 9-10 yrs
    • Calcification 4 months
    • Enamel completed 7 years
    • Root completion 13 years
    • Number of roots 1 or 2 (bifurcated)
  20. Primary Dentition Eruptions
    • 4-6 months----> 2-2.5 years
    • Mandibular first than Maxillary
    • Centrals, Laterals, 1st Molars, Canines, and 2nd Molars
  21. Mixed Dentition 
    Happens around 6 years old

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