Articular Eminence
The bony convexity on the temporal bone that forms the anterior boundary of the glenoid fossa, guiding condylar movement during jaw opening.
Full Definition
The articular eminence is a transverse ridge of the temporal bone situated anterior to the glenoid (mandibular) fossa. During mandibular depression and protrusion, the condyle translates forward and downward along the posterior slope of the articular eminence. Its steepness influences the arc of jaw movement and has implications for TMJ function and appliance design in dentofacial orthopedics. In radiographic and CBCT reports, the morphology and inclination of the articular eminence may be described as part of a comprehensive temporomandibular joint assessment. Editors should note the correct adjectival spelling ('articular,' not 'articulate') and distinguish this structure from the articular disc.
Usage
Usage note: Do not abbreviate. Distinguish clearly from the articular disc in descriptions of TMJ anatomy.
In Context
- "CBCT imaging revealed a steep articular eminence, consistent with the patient's reported joint clicking." — Radiographic report
- "The author used 'articular eminence' and 'glenoid fossa' interchangeably, which is anatomically incorrect and must be revised." — Copyediting note