Anatomy on Radiographs: Occlusal Radiographs


This is the last post I have planned for anatomy and it will be on occlusal radiographs.

Mandible

Short and sweet here with only one anatomical landmark readily visible.

The genial tubercles (yellow arrow) appear as a small radiopaque mass(es) extending off the lingual aspect of the mandible.

Maxilla

The nasal septum (red dotted line) appears as a linear radiopaque band on the midline.

The superior foramina of the nasopalatine canal (blue circles) appear as round to ovoid radiolucent areas superior to the maxillary central incisor apices and lateral to the nasal septum.

The nasolacrimal canal (yellow circles) appear as round to ovoid radiolucent areas at the lateral aspect of the nasal cavity near the level of the first molars.

The border of the maxillary sinus / maxillary sinus (green area) appears as a curved radiolucent area lateral to the nasolacrimal canal and nasal cavity.

The zygomatic process of the maxilla (blue arrow) appears as a radiopaque mass extending lateral of the teeth near the level of the first molars.

The anterior nasal spine (yellow lines) appears as a radiopaque V.  It is on the midline and projected near the midroot portion of the maxillary central incisors.

The soft tissue of the nose (green curved dotted line) appears as a radiopaque area superimposed over the maxillary central incisors.

I hope you find this first post on occlusal radiographic anatomy informative.  If you have any questions, please let me know.

Enjoy!


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