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adv pos arth TMJ
advanced positioning TMJ arthrography
| Question | Answer |
|---|---|
| TMJ arthrography is done to: | diagnose abnormalities of the articular disk, or anterior displacement of disk due to trauma |
| Articular disk | oval disk of fibrocartilage that separates the 2 joint cavities of the TMJ |
| How much contrast is used for a TMJ arthrogram? | .5-1 ml |
| Where is the puncture site for a TMJ arthrogram? | ½” anterior to the tragus |
| What preliminary x-rays are taken before a TMJ arthrogram? | open and closed tomograms |
| post injection projections for TMJ arthrography | after the injection of contrast tomo or x-ray with mouth open, closed, and partially closed. |
| Types of contrast used for TMJ arthrograms | single/opaque |