will a mouthguard help tmj

will a mouthguard help tmj

Temporomandibular joint disorder (TMJ) is a condition that affects the jaw joint and surrounding muscles, causing pain, discomfort, and difficulty in jaw movement. Many people with TMJ seek various treatment options to alleviate their symptoms, including the use of mouthguards. In this article, we will explore whether a mouthguard can help with TMJ from different perspectives.

1. Overview of TMJ

TMJ is a common condition characterized by pain or tenderness in the jaw joint, clicking or popping sounds, difficulty in opening or closing the mouth, and headaches. It can be caused by various factors, including teeth grinding, jaw clenching, arthritis, or injury. The severity of TMJ symptoms can vary from mild to severe, affecting daily activities and quality of life.

2. Types of Mouthguards

There are three main types of mouthguards: stock mouthguards, boil-and-bite mouthguards, and custom-made mouthguards. Stock mouthguards are pre-formed and come in fixed sizes, while boil-and-bite mouthguards can be customized by softening them in boiling water and then molding them to fit the individual’s teeth. Custom-made mouthguards are professionally made by dentists based on the patient’s dental impressions.

3. Protection and Cushioning

A mouthguard can provide a protective barrier between the upper and lower teeth, reducing the impact of teeth grinding or clenching. It acts as a cushion, absorbing and distributing the forces exerted on the jaw joint, thus minimizing the strain on the temporomandibular joint. This protection can help alleviate TMJ symptoms and prevent further damage to the joint.

will a mouthguard help tmj

4. Alignment and Bite Adjustment

Some mouthguards, particularly custom-made ones, can be designed to help align the jaw and adjust the bite. By providing a stable and properly aligned bite, the mouthguard can help relieve tension in the jaw muscles and reduce TMJ symptoms. This realignment can also help improve the overall function of the jaw joint.

5. Muscle Relaxation

Mouthguards can promote muscle relaxation by preventing excessive jaw clenching or grinding during sleep. By creating a physical barrier between the upper and lower teeth, the mouthguard can discourage subconscious muscle tension and promote a more relaxed state. This relaxation can help reduce TMJ-related pain and discomfort.

6. Prevention of Teeth Grinding

Teeth grinding, also known as bruxism, is a common cause of TMJ. Mouthguards can act as a physical barrier, preventing the grinding of teeth and reducing the associated strain on the jaw joint. By wearing a mouthguard, individuals with TMJ can minimize the negative effects of bruxism and potentially alleviate their symptoms.

7. Psychological Benefits

TMJ can have a significant impact on an individual’s mental well-being, causing stress, anxiety, and difficulty sleeping. Wearing a mouthguard can provide a sense of security and control, alleviating anxiety related to TMJ symptoms. The psychological benefits of using a mouthguard may contribute to overall symptom improvement and enhanced quality of life.

8. Limitations of Mouthguards

While mouthguards can be beneficial for many individuals with TMJ, they may not be effective for everyone. Severe cases of TMJ may require more comprehensive treatment approaches, such as physical therapy, medication, or surgery. Additionally, some individuals may find mouthguards uncomfortable to wear or experience difficulty speaking with them in place. It is essential to consult with a healthcare professional to determine the most appropriate treatment plan for TMJ.


A mouthguard can be a valuable tool in managing TMJ symptoms. It provides protection, cushioning, and muscle relaxation, while also potentially aiding in bite adjustment and preventing teeth grinding. However, it is important to recognize the limitations of mouthguards and seek professional guidance for severe or persistent TMJ symptoms. With the right approach and individualized care, a mouthguard can contribute to improved comfort and function for those with TMJ.

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