radiographic technique – Dr. G's Toothpix

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Radiographic Technique

Radiographic Technique: PosteroAnterior (PA) Skull Radiograph

This week is a less commonly made extraoral radiograph but still occasionally seen in dentistry. Here is how to position a patient for this radiograph. 1. Place the coronal plane of the patient parallel with the image receptor. If there is a craniostat to help position this will be GENTLY…

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Radiographic Technique

Radiographic Technique: Lateral Cephalometric Skull Radiograph

This week and next I will be covering two extraoral radiographs made in dentistry. The first one is a lateral cephalometric skull radiograph which is commonly made for orthodontic purposes. Here is how to position a patient for this radiograph. 1. Place the midsagittal plane of the patient parallel with…

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Radiographic Quality Evaluation: Bad Pantomographs (Part 3)

The last two criteria – 5 and 6. 5. Patient has tongue to roof of the mouth and lips around bite block or closed together gently. Error: Patient does not have tongue to roof of the mouth creating a radiolucent band over the maxillary teeth. Note the radiolucent band over…

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Radiographic Quality Evaluation: Bad Pantomographs (Part 2)

Onto criteria 3 and 4. 3. Frankfort horizontal plane is positioned on the correct anatomical landmarks creating a slight concave occlusal plane. Error: Improper patient positioning of the Frankfort horizontal plane in the unit causing distortion of the final image. Note the V-shaped occlusal plane Correction: Move chin superiorly and…

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Radiographic Quality Evaluation: Ideal Pantomograph

This week I am showing an example of an ideal pantomograph along with 6 criteria that are used when determining the quality of a pantomograph. The next couple weeks will be showing examples of when those 6 criteria are not met and how to correct them. 1. Patient has anterior…