Short Answer
Opening range, pain starting point, jaw deviation, joint sounds, muscle tenderness, imaging, and bite records may be checked.
How to think about it
Limited opening is not judged only by how many millimeters the mouth opens. The pattern of pain, catching, deviation, muscle tenderness, trauma, and bite changes helps decide what to evaluate next.
Evidence and limits for this question
What this question checks
This page uses the question "What examinations are used for limited mouth opening?" to organize a symptom pattern before assuming a TMJ-related cause.
What to rule out first
Urgent, organ-specific, dental, ENT, neurologic, traumatic, infectious, or breathing-related warning signs should be considered before jaw-related interpretation.
What is reviewed in clinic
Consultation details, symptom timing, jaw movement, chewing muscle tension, bite changes, previous exam results, and recurrence patterns may be reviewed together.
What not to decide from this page
Do not use this page alone to choose a diagnosis, appliance, procedure, medication, or emergency response.
Safety note
Sudden severe limitation, trauma, swelling, fever, dislocation feeling, or difficulty eating and speaking may need prompt evaluation.