Night guards are popular devices used in dentistry to protect teeth and the masticatory system from the effects of bruxism, or teeth grinding and clenching during sleep. Many patients diagnosed with this problem ask themselves: Do night guards really work? The answer is: yes, they do – but under certain conditions. Their effectiveness depends on the quality of workmanship, proper fit, and consistent use.
How Do Night Guards Work?
The basic function of night guards is to create a physical barrier between the upper and lower dental arches, preventing direct contact between teeth. When a person clenches their jaws or grinds their teeth during sleep, they can put a high amount of pressure on their teeth, which can cause damage. Without protection, teeth are exposed to abrasion, cracks, hypersensitivity, and even mobility. The guard distributes this force and protects both the enamel and the temporomandibular joints and facial muscles.
Proven Clinical Effectiveness
Numerous dental studies confirm the effectiveness of night guards in reducing symptoms associated with bruxism. People who use individually fitted relaxation splints report:
- reduced morning jaw and facial pain,
- reduced tension headaches,
- less abrasion and damage to teeth,
- improved sleep quality.
What's more, night guards support the regeneration of overloaded masticatory muscles and can stabilize the temporomandibular joints in patients with symptoms of TMJ dysfunction.
Types of Night Guards and Effectiveness
There are two main types of night guards available on the market:
- Ready-made (thermoplastic) guards - available in pharmacies or online stores, they are often cheaper and require self-fitting at home. Their effectiveness is limited because they are not perfectly matched to the individual anatomy of the oral cavity. They can cause discomfort, move during sleep, and even worsen bite problems.
- Custom-made guards made by a dentist – made based on an impression of the patient's mouth. They fit perfectly, are more comfortable, and much more effective. Although they are more expensive, they provide the highest level of protection and comfort.
Who Are Night Guards Most Effective For?
Night guards are most effective for people who:
- suffer from moderate or advanced bruxism,
- have undergone orthodontic treatment to maintain the new position of the teeth,
- have headaches or jaw pain of unclear origin,
- have a history of cracked or worn teeth,
- have temporomandibular joint problems.
It is worth adding that not every person who grinds their teeth needs to wear a guard – the decision is made by the dentist after assessing the symptoms and their severity.
Does a Night Guard Treat the Cause of Bruxism?
No. The guard does not remove the cause of bruxism, but only protects against its effects. Bruxism is often the result of long-term stress, malocclusion, neurological disorders, or side effects of medications. Therefore, full treatment should also include:
- Work on reducing stress (therapy, meditation, relaxation exercises),
- Bite correction,
- Physiotherapy of the temporomandibular joint,
- Sometimes pharmacotherapy.
In Conclusion
Night guards work - they effectively protect teeth, joints, and facial muscles from the devastating effects of bruxism. Wearing them regularly can significantly improve the comfort of life, quality of sleep, and prevent expensive and painful dental problems in the future. However, for them to really work, they must be properly selected and used as part of a broader causal treatment plan. Consulting a dentist is the first step towards effective protection. If a night guard may be right for you, contact our office today, and we can get you the help you need!