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MANDIBLE

MANDIBLE. RT 233. MANDIBLE ANATOMY. rami coronoid process body mental foramen condyle mental symphysis alveolar process mentum mental protuberance. Mandible. Mandible. Mandible. Indications for x-ray Fractures Neoplastic Processes Inflammatory Processes. Mandible.

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MANDIBLE

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  1. MANDIBLE RT 233

  2. MANDIBLE ANATOMY rami coronoid process body mental foramen condyle mental symphysis alveolar process mentum mental protuberance

  3. Mandible

  4. Mandible

  5. Mandible Indications for x-ray Fractures Neoplastic Processes Inflammatory Processes

  6. Mandible

  7. Essential Projections: Mandible PA – rami PA-body PA axial – rami PA axial-body Axiolateral obliques for rami, body, symphysis

  8. Additional Projections SMV AP Axial (Townes) True Lateral

  9. PA Mandible (for rami)

  10. Mandible-PA (for rami) • Mandibular rami • Lateral portion ofbodyare visualized • Demonstrate the entire mandible without rotationor tilt • Will show medial or lateral displacement of fractures

  11. PA Mandible Rami- Diagram

  12. Projection??

  13. Projection? Justify your answer

  14. Mandible-PA (for body)

  15. Mandible-PA (for body) • Contrast and density are sufficient to view body and rami • Sharp bony detail indicating no motion

  16. Projection? Identify labels:…..

  17. Mandible-PA Axial (for rami)

  18. Mandible- PA Axial (for rami) • Heads of condyles are visible through mastoidprocesses. • Condyloid processes are well visualized, slightly elongated. • Proper Density • No rotation or tilt

  19. PA Axial (body)Mandible Positioning

  20. PA Axial (body)Mandible Radiographs • TMJ’s just inferior to mastoid process • Symmetric rami • Adequate contrast and density

  21. AP Axial – Towne Method

  22. AP Axial- Towne Method Radiograph • Demonstrates condyloid processes symmetrically • Clear visualization of TMJ fossae and condyle relationship • Minimal SI of TM fossae and mastoid portions

  23. Axiolateral Oblique Positioning for Ramus

  24. Axiolateral Oblique Radiograph for Ramus • No overlap of ramus by opposite side of mandible • No elongation or foreshortening of ramus • No superimposition of ramus by c-spine

  25. Axiolateral Oblique Positioning for Body

  26. Axiolateral Oblique Radiograph for Body • No overlap of body by opposite side of mandible • No elongation or foreshortening of body • No superimposition of body by c-spine

  27. Axiolateral Oblique Positioning for Mandibular Symphysis

  28. Axiolateral Oblique Radiograph for Mandibular symphysis • No overlap of mentum by the opposite side of mandible • No foreshortening of the mentum region

  29. Mandible Watch this 86 times ! ! !

  30. Mandible Watch it live!!

  31. Panorex Mandible

  32. Panorex Mandible Radiographs • Demonstrates teeth, mandible, TMJ’s • Density are uniform across image • No artifacts

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