A Panorex is a great screening tool but there is distortion as well as potential bony overlay that will limit the view of the TMJ’s. The arc and path of the machine increases the 'size' of the condyle and reverses the condylar poles. (What you think is the lateral pole is actually the medial or inside pole of the condylar head) It is used as a screening tool to see if there are condylar fractures or condylar head degenerative changes.
Pros and Cons
Quick imaging and accessible.
Distorts the condyles of the mandible.
There is bony overlay making it harder to see the condylar head.
Tomograph is a cyclical TMJ imaging device that creates a clearer picture but is still two dimensional.
Lateral cephalometric for skull, jaw, tooth and cervical positioning. Primarily used in orthodontics and is focused on neutral angles of the head, jaw, teeth, hyoid and neck.