- The temporomandibular joint (TMJ) is located between the temporal bone and the mandible.
- More specifically, it is located between the mandibular fossa of the temporal bone and the condyle of the mandible.
- The TMJ is a synovial, modified hinge, uniaxial joint.
- The TMJ allows:
- Elevation/Depression in the sagittal plane
- Protraction/Retraction (nonaxial)
- Left lateral deviation / Right lateral deviation (nonaxial)
- There is a fibrocartilaginous disc located within the TMJ that divides it into two separate cavities: superior and inferior.
- When there is pain and/or dysfunction at the temporomandibular joint (TMJ), it is referred to as TMJ Syndrome.