Temporomandibular Joint
Pronunciation: tem-poh-roh-man-DIB-yoo-lar
Also written as: TMJ — Temporomandibular Joint
The bilateral synovial joint connecting the mandibular condyle to the temporal bone, enabling the movements of mastication, speech, and jaw function.
Full Definition
The temporomandibular joint (TMJ) is a complex bilateral diarthrodial joint formed by the articulation of the mandibular condyle with the glenoid fossa and articular eminence of the temporal bone, separated by an articular disc. In oral and maxillofacial surgery, the TMJ is referenced in operative notes for arthroscopy, arthroplasty, condylectomy, and disc repositioning procedures. Editors must ensure consistent use of the abbreviation 'TMJ' only after its first full expansion in the document. Common editorial errors include hyphenating 'temporomandibular' (incorrect) and confusing TMJ disorders (TMD) with the joint itself.
Usage
Usage note: Do not hyphenate 'temporomandibular'. Distinguish the joint (TMJ) from its associated disorders (TMD) in all documentation.
In Context
- "The referral letter described left-sided temporomandibular joint arthralgia with restricted mouth opening and clicking on lateral excursion." — Referral Letter
- "The editor noted that the abbreviation TMJ had been used without prior expansion in the abstract and flagged it for correction per journal style." — Journal Abstract Review