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    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
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    Floor of nasal fossa (red arrows) and anterior border of maxillary sinus (blue arrows), forming the inverted (upside down) Y.
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    a = floor of nasal fossa, b = maxillary sinus, c = lateral fossa (a & b form inverted Y)
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    The red arrows point to the soft tissue of the nose. The green arrows identify the lip line.
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    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.
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    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.
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    Red arrow = mesiodens (supernumerary tooth) Blue arrow = chronic periapical periodontitis. Tooth # 9 is non-vital (trauma) and needs endo
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    a=nasal septum, b=inferior turbinate, d=anterior nasal spine, e=incisive foramen, red(left)=periapical lesion, red(right)=lip line
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    Soft Tissue of the nose
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    Median Palatal Suture
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    Incisive Foramen
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    Anterior Nasal Spine
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    Nasal Fossa
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    Nasal Septum
Card Set
Intra 3 Radiology