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 1
  3. Line angle
    • junction between adjacent surfaces on the same tooth
    • Image Upload 2
  4. Proximal contact
    area where adjacent teeth contact each other
  5. Embrasure
    • v-shaped space around proximal contacts between two teeth
    • Image Upload 3
  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 4
  11. Maxillary Lateral Incisor
    • More convex labial surface
    • More rounded incisal angles
    • Longer root relative to crown length
    • Image Upload 5
  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 6
  13. Mandibular Lateral Incisor
    • Larger than central
    • Mesioincisal angle sharper than distal
    • Crown twisted on root base
    • Image Upload 7
  14. thirds
    Image Upload 8
  15. CEJ
    • Pattern of Cementoenamel Junction (CEJ) Curvature
    • Image Upload 9
  16. tooth surfaces
    Image Upload 10
  17. Palmer Notation
    Image Upload 11
  18. Universal Notation
    Image Upload 12Image Upload 13
Author
emm64
ID
104838
Card Set
morphology1
Description
dental morphology lecture 1
Updated