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morphology1

  1. ISO
    • Binomial system
    • First number identifies the quadrant and dentition:
    • 1 � Permanent maxillary right 5 � Primary maxillary right
    • 2 � Permanent maxillary left 6 � Primary maxillary left
    • 3 � Permanent mandibular left 7 � Primary mandibular left
    • 4 � Permanent mandibular right 8 � Primary mandibular right
    • Second number identifies specific tooth in quadrant (1-8 permanent) and 1-5 primary
  2. Height of contour
    • location of greatest curvature on each tooth surface
    • Image Upload 2
  3. Line angle
    • junction between adjacent surfaces on the same tooth
    • Image Upload 4
  4. Proximal contact
    area where adjacent teeth contact each other
  5. Embrasure
    • v-shaped space around proximal contacts between two teeth
    • Image Upload 6
  6. Anterior Teeth Features
    • Incisal edge or one cusp
    • Cingulum and lingual fossa(e)
    • Marginal ridges parallel long axis
    • Facial and lingual heights of contour in cervical third
  7. Incisor Functions
    • Mastication:�incising� or biting, holding
    • Phonetics: forming certain sounds
    • Esthetics: most visible when smiling
  8. Incisor Features
    • Incisal edge
    • Single root
    • Cingulum and lingual fossa
    • Marginal ridges parallel to long axis
    • Wider mesiodistally than faciolingually
    • Facial and lingual heights of contour in cervical third
    • CEJ curvature greater on mesial than distal surface
  9. Incisors: Relative Sizes
    • From largest to smallest:
    • Maxillary central
    • Maxillary lateral
    • Mandibular lateral
    • Mandibular central
  10. Maxillary Central Incisor
    • Mesioincisal angle is very sharp
    • Distoincisal angle slightly more rounded
    • Incisocervical and mesiodistal dimensions are most nearly equal
    • Prominent cingulum
    • Image Upload 8
  11. Maxillary Lateral Incisor
    • More convex labial surface
    • More rounded incisal angles
    • Longer root relative to crown length
    • Image Upload 10
  12. Mandibular Central Incisor
    • Smallest permanent tooth
    • Smooth lingual surface
    • Most symmetrical incisor
    • Mesio- and distoincisal angles both sharp
    • Curvature of CEJ is greater on mesial than on distal
    • Image Upload 12
  13. Mandibular Lateral Incisor
    • Larger than central
    • Mesioincisal angle sharper than distal
    • Crown twisted on root base
    • Image Upload 14
  14. thirds
    Image Upload 16
  15. CEJ
    • Pattern of Cementoenamel Junction (CEJ) Curvature
    • Image Upload 18
  16. tooth surfaces
    Image Upload 20
  17. Palmer Notation
    Image Upload 22
  18. Universal Notation
    Image Upload 24Image Upload 26
Author
emm64
ID
104838
Card Set
morphology1
Description
dental morphology lecture 1
Updated

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