Dental Night Guard Side Effects: Understanding the Risks


Dental Night Guard Side Effects:Dental night guards have become increasingly popular in recent years as a solution for teeth grinding and clenching, also known as bruxism. These custom-made oral appliances are designed to protect your teeth from the damaging effects of grinding and clenching during sleep. While dental night guards are generally safe and effective, it is important to be aware of the potential side effects that may arise from their use. In this article, we will explore some of the common side effects associated with dental night guards and provide insights on how to mitigate them.

1. Jaw Discomfort and Muscle Soreness

One of the most common side effects reported by individuals using dental night guards is jaw discomfort and muscle soreness. This can occur due to the adjustment period required for your jaw muscles to adapt to the new positioning of the night guard. It is not uncommon to experience some initial discomfort, tightness, or soreness in the jaw muscles, especially in the morning after wearing the night guard throughout the night.

To alleviate this side effect, it is recommended to gradually increase the duration of wearing the night guard. Start by wearing it for a few hours during the evening before bedtime and gradually increase the duration until you can comfortably wear it throughout the night. Additionally, practicing jaw relaxation exercises and applying warm compresses to the affected area can help relieve muscle tension and soreness.

2. Temporomandibular Joint (TMJ) Issues

In some cases, dental night guards can exacerbate pre-existing temporomandibular joint (TMJ) issues or even cause new problems to arise. TMJ disorders can manifest as pain, clicking or popping sounds, and limited jaw movement. If you experience any of these symptoms after using a dental night guard, it is essential to consult with your dentist or a TMJ specialist.

To prevent or minimize TMJ-related side effects, it is crucial to ensure that your dental night guard is properly fitted and adjusted. A poorly fitting night guard can place additional stress on the TMJ, leading to discomfort and potential complications. Regular check-ups with your dentist can help identify any issues with the fit of your night guard and allow for necessary adjustments to be made.

3. Tooth and Gum Sensitivity

Another potential side effect of dental night guards is tooth and gum sensitivity. Some individuals may experience increased sensitivity to hot and cold temperatures, as well as discomfort when biting or chewing. This sensitivity can arise due to the pressure exerted on the teeth and gums by the night guard.

To address tooth and gum sensitivity, it is important to ensure that your dental night guard is properly designed and fitted by a dental professional. A well-fitted night guard should distribute the forces evenly across your teeth, minimizing the risk of sensitivity. Additionally, using desensitizing toothpaste and avoiding acidic or sugary foods and beverages can help alleviate sensitivity symptoms.

4. Dry Mouth and Excessive Salivation

Wearing a dental night guard can sometimes lead to dry mouth or excessive salivation during sleep. This can be attributed to the altered positioning of your jaws and the presence of a foreign object in your mouth. Dry mouth can be uncomfortable and increase the risk of dental issues such as tooth decay and gum disease.

To combat dry mouth, it is essential to maintain proper oral hygiene and stay hydrated throughout the day. Drinking water regularly and using saliva substitutes or moisturizing mouth sprays can help alleviate dryness. If excessive salivation is an issue, consult with your dentist to ensure that your night guard is properly fitted and not causing any obstruction to normal saliva flow.

5. Speech Impairment

Some individuals may experience temporary speech impairment when wearing a dental night guard. This can manifest as a lisp or difficulty pronouncing certain sounds. Speech impairment occurs due to the presence of the night guard, which may alter the position of the tongue and affect speech clarity.

To overcome speech impairment, it is recommended to practice speaking with the night guard in place. Reading aloud or engaging in conversation while wearing the night guard can help your tongue and mouth muscles adapt to the new positioning. With time and practice, speech impairment should diminish, allowing for normal speech while wearing the night guard.


Dental night guards are valuable tools in managing bruxism and protecting your teeth from the damaging effects of grinding and clenching. While they are generally safe and effective, it is important to be aware of potential side effects. Jaw discomfort, TMJ issues, tooth and gum sensitivity, dry mouth, excessive salivation, and speech impairment are among the possible side effects. By understanding these risks and following the recommended mitigation strategies, you can ensure a comfortable and effective experience with your dental night guard. Consult with your dentist if you experience persistent side effects or have any concerns regarding your night guard.

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