Ear symptoms like pain, pressure, tinnitus, and dizziness aren't always caused by ear problems; they can be referred pain from temporomandibular disorders (TMD) and jaw dysfunction. Understanding the anatomical connections between the jaw, ear, and surrounding nerves helps identify when TMD is the true cause and when specialist referral is needed.
- Earache can originate from an inflamed temporomandibular joint as referred pain, not middle ear infection, especially when the jaw condyle presses against ear canal structures.
- Ear pressure may result from disc displacement creating tension on the discomalleolar ligament, which connects to the malleus bone in the middle ear.
- Tinnitus can have a somatosensory component triggered by jaw tension, clenching, or neck muscle inflammation that worsens during TMD flare-ups.
- Dizziness and balance issues may stem from jaw or cervical dysfunction disrupting proprioceptive input, with some Ménière's disease cases improving when TMD is treated.
Ear symptoms aren't always caused by issues within the ear itself. In some cases, they may be related to the jaw, head, or neck. We'll explore four common symptoms often attributed to the ear and how they may relate to orofacial pain conditions, particularly temporomandibular disorders (TMD).
Earache
While often associated with a middle ear infection (otitis media), deep ear pain can originate from an inflamed temporomandibular joint (TMJ). This is known as referred pain or pain spread.
Pain from an inflamed TMJ can be perceived as pain in or in front of the ear canal. Discomfort when wearing earplugs, earbuds, or hearing aids and difficulty achieving a consistent fit could relate to the condyle pressing against the bone, separating the ear canal from the joint. The condyle can temporarily change the shape of the ear canal as the jaw closes, especially if it is posteriorly displaced when the teeth occlude.
The auricular branch of the vagus nerve and the auriculotemporal nerve innervate the skin of the ear canal. Pressure on these nerves can also be uncomfortable, particularly if inflammation is present.
Ear pressure
Dr. Kim Ledermann.
Pressure or fullness in the ear in the absence of otitis media may relate to the anatomical relationship between the articular disc and the malleus of the middle ear, which are connected by the discomalleolar (Pinto's) ligament.
When the disc is displaced, there may be tension on this ligament. That tension can transmit force to the malleus, which may alter the tension of the tympanic membrane (eardrum) and produce a sensation of fullness or pressure.
In patients who clench, the tensor tympani muscle may tense the eardrum, adding to a sense of fullness.
Another possible contributor is intraoral tightness in the tensor veli palatini muscle and fascia, or improper posterior tongue elevation when swallowing. Either may interfere with the opening of the eustachian tube.
Tinnitus
There are many causes of tinnitus, including viral infections, ototoxic medications, and noise exposure. Tinnitus can also have a somatic (somatosensory) component and can be triggered, modulated, or exacerbated by tension or inflammation in the muscles, joints, or tendons of the head and neck.
If tinnitus changes with neck or jaw positioning, jaw opening or clenching, or if it worsens during flare-ups of neck and jaw pain, a somatosensory relationship is more likely. Addressing those issues may reduce tinnitus in some people.
Vertigo, dizziness, and balance issues
The semicircular canals are part of the inner ear and the body's vestibular system, which is responsible for our sense of balance and spatial orientation.
While true vertigo typically originates in the vestibular system, balance also depends on proprioception, the body's internal sense of position. It relies on mechanoreceptors throughout the musculoskeletal system that tell the brain where the body is and how its parts are moving.
A sudden change, such as a shift in occlusion with disc displacement (locking), edema in the joint compartment, muscle spasms, or changes within the cervical spine, can disrupt proprioceptive input and may contribute to dizziness or a sense of imbalance.
Some studies have reported improvement in some Ménière's disease symptoms when temporomandibular joint or cervical dysfunction is treated, suggesting these disorders may be a contributing factor in some people.
When to refer: If a patient has otologic symptoms such as sudden, unexplained hearing loss, ear drainage, or facial weakness, prompt referral to an ear, nose, and throat specialist or other physician is warranted.
The bottom line: Ear symptoms can have many causes, and TMD and other orofacial pain conditions are important considerations when evaluating and treating these patients.
Dr. Kim Ledermann, MS, is the owner and clinical director of the Minnesota Craniofacial Center for TMJ and Sleep Treatment. A former speech language pathologist, she earned her Doctor of Dental Surgery degree from the University of Minnesota. She is a diplomate of the American Board of Facial Pain, the American Board of Craniofacial Pain, the American Board of Dental Sleep Medicine, and the American Board of Craniofacial Dental Sleep Medicine. Ledermann is an adjunct professor at Northwestern Health Sciences University and a continuing education instructor in orofacial pain.
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