November 2013 – Page 2 – 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 Interpretation

Locate the Object: November 2013

This month I have two cases to use your image shift and SLOB (Same-Lingual, Opposite-Buccal) information. 1. The object in question is the round radiopaque entity labeled A. Where is it located (buccal or lingual) compared to the maxillary second premolar? 2. The object in question is the supernumerary tooth…

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Anatomy Monday

Anatomy Monday: Glossopharyngeal air space

This is the last post on air spaces on pantomographs; the glossopharyngeal air space. It presents as a radiolucent band superimposed over the angle of the mandible at the lateral aspects of the pantomograph. If the cervical vertebrae are visible, it is seen anterior to them. If you have any…

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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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Anatomy Monday

Anatomy Monday: Nasopharyngeal air space

This week is the air space superior and lateral to the palate (on the radiograph); the nasopharyngeal air space. It is seen as a radiolucent area superimposed over the ramus near the mandibular notch and neck of the condyle. If you have any questions or comments, please leave them below.…