TMJ cortisone injections place a steroid medicine into the jaw joint to reduce inflammation and may be considered for selected joint problems when simpler treatments have not helped. They are not a routine treatment for all jaw pain, and benefit is uncertain. Possible downsides include a temporary pain flare, numbness or other injection-related effects, and concern about damage to joint cartilage. A specialist can discuss whether potential benefits outweigh risks.
What Is a TMJ Cortisone Injection?
The temporomandibular joint (TMJ) connects the lower jaw to the skull, just in front of each ear. It helps you chew, speak, yawn, and open and close your mouth. Temporomandibular disorders (TMDs) are a group of conditions affecting the joint, the chewing muscles, or both.
A TMJ cortisone injection delivers a corticosteroid, a medicine that reduces inflammation, into the joint. The term "cortisone shot" is commonly used for different corticosteroid medicines. Depending on the treatment plan, a local anesthetic may also be used to help numb the area.
These injections are intended to reduce pain and inflammation, not repair damaged cartilage or correct every structural problem in the joint. According to MedlinePlus, corticosteroid shots are used rarely for TMJ disorders, reflecting their limited role among available treatment options.
When Are TMJ Cortisone Injections Used?
A healthcare professional may discuss a corticosteroid injection when symptoms appear to come from inflammation inside the jaw joint and other appropriate treatments have not provided enough relief. Possible clinical situations include selected cases of inflammatory arthritis, osteoarthritis of the TMJ, or persistent joint pain associated with internal joint disorders.
The decision depends on the underlying problem. Jaw pain can arise from the joint itself, the surrounding muscles, dental conditions, or other causes. An injection aimed at the joint may not help when the main source of pain is elsewhere.
Are these injections a first treatment for jaw pain?
No. They are not generally a first-line treatment for TMDs. Many people can begin with less invasive approaches, such as temporary changes to foods that require heavy chewing, warm or cold compresses, jaw exercises recommended by a professional, or appropriate pain-relieving medicines. Treatment should be tailored to the cause of the symptoms.
The American Academy of Family Physicians (AAFP) notes that evidence for injections directly into the TMJ is unclear and highlights concern about possible damage to the joint's cartilage. This is an important reason to weigh the potential benefits against the risks rather than assume an injection is the next step when other treatments fail.
How Much Pain Relief Can a TMJ Cortisone Injection Provide?
Some patients may experience reduced joint pain after an injection, but the amount and duration of relief are not predictable. Results depend partly on the underlying joint condition and the medicine used. A reduction in pain also does not necessarily mean that jaw movement, chewing ability, or long-term joint health will improve to the same degree.
A 2024 systematic review available through the U.S. National Library of Medicine's PubMed database examined 20 randomized clinical trials involving 810 participants. It found evidence that certain corticosteroid approaches may provide better short- or medium-term pain relief than arthrocentesis alone. However, the review did not find convincing evidence that any intervention was better than arthrocentesis for improving jaw movement or quality of life at the assessed follow-up points. Results also differed between steroid treatments.
Other research has raised questions about whether the medicine adds meaningful benefit. In a randomized trial indexed by PubMed, a single injection of methylprednisolone did not provide greater pain relief than a saline injection at four weeks, and treatment-related adverse events were more common in the steroid group. These findings do not mean that every corticosteroid injection has the same results, but they demonstrate why the evidence needs careful interpretation.
What Are the Risks and Side Effects of TMJ Cortisone Injections?
Like other injections into a joint, a TMJ cortisone injection can cause temporary side effects or, less commonly, more significant complications. The risks depend on the medicine, the injection technique, the number of injections, and the person's health. Potential adverse effects include:
- Temporary pain flare: Pain, tenderness, or swelling around the joint may briefly increase after the injection.
- Numbness or tingling: Some people may experience temporary altered sensation in nearby areas.
- Skin or allergic reactions: A rash or local allergic reaction may occur.
- Difficulty moving the jaw: Some patients may notice increased difficulty opening the mouth or changes in how their teeth meet.
- Infection or bleeding: These are potential complications of an injection procedure, although serious complications are uncommon.
- Nerve-related complications: Nearby nerves may be affected, potentially causing sensory changes or temporary facial muscle weakness.
- Possible cartilage damage: Corticosteroids can raise concern about harm to joint cartilage, particularly with repeated exposure. The exact risk associated with TMJ injections is not well established.
The Mayo Clinic's guidance on cortisone shots describes pain flares, infection, nerve damage, and cartilage damage among the possible risks of corticosteroid injections in joints generally. These risks should not be interpreted as equally likely for every joint or every patient. TMJ-specific studies are needed to establish the likelihood of individual complications more precisely.
Can repeated TMJ cortisone injections damage cartilage?
Cartilage damage is one of the main concerns when considering corticosteroids inside a joint. Cartilage covers the ends of the bones and helps them move against one another. Damage to this tissue may affect how a joint functions.
Repeated corticosteroid exposure can be a concern for joint cartilage, but the precise long-term effects of repeated injections into the TMJ remain uncertain. The potential consequences matter because the jaw joint has to move repeatedly during everyday activities. There is no sound basis for assuming that repeat injections are harmless simply because an earlier injection reduced pain.
Before proceeding with another injection, the treating specialist should review the benefit of previous injections, the duration of relief, any side effects, and alternative approaches. A treatment that provides only brief relief may not justify repeated exposure to its risks.
What Happens During and After the Injection?
A clinician experienced in TMJ disorders will first review the symptoms, medical history, examination findings, and, when appropriate, imaging results. This helps determine whether the pain is coming from the joint and whether an injection is appropriate. The area is cleaned before the needle is placed, and a local anesthetic may be used depending on the procedure. The injection may be performed with imaging guidance when the clinician considers it appropriate.
Afterward, the care team may recommend temporarily avoiding activities that place heavy demands on the jaw and following specific aftercare instructions. Some discomfort can occur initially. Patients should ask when they can return to their normal diet and activities and which pain-relief options are suitable for them.
Contact the treating clinician promptly if pain or swelling continues to worsen, the area becomes increasingly warm or red, or a fever develops. Seek urgent medical assessment for new facial weakness, persistent or spreading numbness, or a sudden major change in jaw function. These symptoms need evaluation rather than being assumed to be ordinary post-injection effects.
Who Needs Extra Caution Before a TMJ Injection?
The clinician should know about relevant medical conditions, allergies, medicines, and previous reactions to injections before treatment. An existing infection, a history of reaction to the planned medicine or anesthetic, or medicines that increase bleeding risk may change how the procedure should be planned. People with diabetes should also discuss their condition and current glucose control because corticosteroids can temporarily raise blood sugar after an injection.
Are TMJ cortisone injections appropriate for children?
Children and adolescents need particular consideration when the TMJ is affected by inflammatory conditions such as juvenile idiopathic arthritis. Intra-articular corticosteroid injections have been studied for selected children with TMJ inflammation, but evidence of their long-term benefits and safety remains limited. The effect on growth of the lower jaw is also an important concern because the facial skeleton is still developing.
A systematic review indexed by the U.S. National Library of Medicine found that evidence was insufficient to establish the long-term effects of intra-articular steroid injections on mandibular growth or disease progression in children with juvenile idiopathic arthritis. Decisions for a child should therefore involve clinicians experienced in both the underlying inflammatory disease and pediatric jaw-joint care. Adult treatment evidence should not automatically be applied to a growing child.
What Alternatives Should Be Discussed?
The best alternative depends on whether symptoms arise mainly from the joint, the chewing muscles, or another cause. A clinician may discuss conservative measures before considering an invasive procedure. These can include:
- Self-management: Temporarily choosing softer foods, avoiding gum chewing, and reducing habits such as clenching when possible.
- Heat, cold, and guided exercises: These may help some people manage discomfort and maintain jaw movement.
- Medication: An appropriate pain reliever or anti-inflammatory medicine may be considered after reviewing medical history and contraindications.
- Physical therapy: A tailored program may help improve movement and address muscle-related problems.
- Other specialist procedures: Depending on the diagnosed joint problem, a clinician may discuss alternatives such as arthrocentesis, a procedure that flushes the joint with fluid.
None of these options suits every TMD. The goal is to select a treatment that matches the source of the symptoms while avoiding unnecessary procedures and their potential harms.
Questions to Ask Before Agreeing to a TMJ Cortisone Injection
A useful discussion with the treating clinician should cover the reason for the injection, what benefit is realistic, and what may happen if it does not work. Consider asking:
- What findings suggest that the joint itself is causing the pain?
- Why is a corticosteroid injection being recommended instead of a less invasive treatment?
- What evidence supports the proposed medicine for this particular joint problem?
- What side effects should prompt a call or urgent assessment?
- How will we judge whether the injection helped, and what would be the plan if symptoms return?
- What other treatments are reasonable, and what are their respective risks?
TMJ cortisone injections may have a role in selected cases of painful joint inflammation, but they are not a universal solution for jaw pain. Evidence of benefit is mixed, and potential cartilage damage and other injection-related complications deserve consideration. An individualized discussion with a qualified clinician can help determine whether the expected benefit is meaningful for the specific joint problem.