Main Content
Your healthcare provider will also measure how much your mouth opens. They may do this by wearing gloves and measuring with their fingers. In adults, the normal mouth opening is about 3 finger widths. If your mouth opens less than 2 finger widths, it may mean you have temporomandibular joint (TMJ) dysfunction.
In most cases, you will not need more tests unless you need to see a specialist. If you are being referred to a specialist, your healthcare provider may ask you to have an MRI or a CT scan.
Download or print the full patient pathway (PDF) and summary (one-page PDF) to learn more about how to manage and treat TMJ dysfunction.Patient Pathway Summary
Go to Top