The transducer is placed distal and parallel to the zygomatic arch to bridge the coronoid and condylar processes. The lateral pterygoid muscle can be seen originating from the condylar process and attaching to the lateral pterygoid plate.
Caption: Figure 4: (a) Panoramic dental scan depicting enlarged inferior alveolar canal (arrow) with residual tumor mass (asterisk) and hypoplastic condylar process (chevron), (b) axial CT in bone window showingthe residual mass in alveolar margins of maxilla and mandible (arrow) and concavity of mandibular ramus (chevron), (c) axial CT scan showing apparent foramen (arrow) due to lytic erosion of mandibular cortex, (d) 3D CT scan image showing hypoplastic condylar process (chevron), apparent foramen (arrow), and tumor in maxillary alveolus (asterisk), (e) coronal CT image showing rudimentary styloid process of right side (arrow), and (f) axial CT image of sutural diastasis (chevron) and persistent metopic suture (arrow).
The human TMJ is composed of the condylar process of the mandible, the mandibular fossa and the articular tubercle of the squamous part of the temporal bone (Vasconcellos et al).