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  1. Lateral fossa. The radiolucency results from a depression above and posterior to the lateral incisor. To help rule out pathology, look for an intact lamina dura surrounding the adjacent teeth
  2. Floor of nasal fossa (red arrows) and anterior border of maxillary sinus (blue arrows), forming the inverted (upside down) Y.
  3. a = floor of nasal fossa, b = maxillary sinus, c = lateral fossa (a & b form inverted Y)
  4. The red arrows point to the soft tissue of the nose. The green arrows identify the lip line.
  5. The red arrows point to an incisive canal cyst; the orange arrow identifies the root of tooth # 7. All the incisors are non-vital and have periapical lesions. The purple arrows point to external resorption; the blue arrow identifies internal resorption.
  6. Superior foramina of the nasopalatine canals (red arrows). These foramina lie in the floor of the nasal fossa. The nasopalatine canals travel downward to join in the incisive foramen.
  7. Red arrow = mesiodens (supernumerary tooth) Blue arrow = chronic periapical periodontitis. Tooth # 9 is non-vital (trauma) and needs endo
  8. a=nasal septum, b=inferior turbinate, d=anterior nasal spine, e=incisive foramen, red(left)=periapical lesion, red(right)=lip line
  9. Soft Tissue of the nose
  10. Median Palatal Suture
  11. Incisive Foramen
  12. Anterior Nasal Spine
  13. Nasal Fossa
  14. Nasal Septum

Card Set Information

2012-03-18 03:26:07
Intra Radiology

Intra 3 Radiology
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