Anatomy Monday: Zygomatic Process of the Maxilla

This anatomy can be tricky for some to visualize as its appearance is understood by knowing the direction of x rays and how they course through this process. So to try and show that I’m adding some 3D renderings from a CBCT scan. The zygomatic process of the maxilla appears […]

Lateral Cephalometric Skull Anatomy – Part V

Today is all about the mandible. Condyle (black curved dotted line) Coronoid process (white triangular dotted line) Mandibular first molar (green oval) Infradentale (yellow dotted arrow) – Superior facial bone height near the level of the cemento-enamel junction of the mandibular incisors. B point (white solid arrow) – The posteriormost […]

Anatomy Monday: Floor of the nasal cavity (maxilla) 1

The floor of the nasal cavity that is visible on radiographs is actually the junction of the floor and lateral wall or vomer.  On intraoral radiographs this will appear as a single radiopaque straight line superior to the maxillary teeth.  It is visible on any periapical radiograph (anterior and posterior).  […]

Anatomy Monday: Y line of Ennis (maxilla) 6

Today I am starting a new series for Mondays on anatomy. I will be showing different anatomical landmarks for both intraoral and extraoral radiographs.  This first entity I am showing is a radiographic anatomical landmark; the Y line of Ennis.  This is sometimes referred to as an Inverted Y.  It […]

Case of the week: Double Lingual Foramina 4

This weeks case is an interesting variant of normal anatomy – two lingual foramina seen on a periapical radiograph.  Some patients can have up to three lingual foramina. Note the two well-defined, circular radiolucent entities inferior to the mandibular central incisors.  The superior one is larger than the inferior one. […]