Short answer: Bruxism is the involuntary clenching or grinding of the teeth and can occur during sleep or during the day. Stress, anxiety, sleep disorders, caffeine, alcohol, smoking and certain medications are the main contributing factors. Jaw pain in the morning, headaches, tooth wear and sensitivity are common symptoms. Treatment uses a custom-made night guard, behavioral methods, stress management and, in suitable patients, Botox injections.
If you wake up in the morning with tired jaw muscles, a feeling of pressure in your temples or unexplained sensitivity in your teeth, you may be clenching your teeth at night without realizing it. Bruxism is the habit of involuntarily clenching the teeth or grinding them against each other, and it is quite common in adults. Most people only find out about it when their partner mentions a noise they hear at night or when their dentist notices wear on their teeth. In this article, we explain the causes and symptoms of bruxism, the damage it can do to the teeth and the treatment options.
What is bruxism?
Bruxism is a jaw muscle activity characterized by clenching or grinding of the teeth, or forcefully thrusting the lower jaw forward, through repeated contractions of the jaw muscles. Today, bruxism is regarded less as a disease in its own right and more as a behavior that can arise from a variety of causes and, in some people, can lead to health problems.
Bruxism occurs in two main forms:
- Sleep bruxism: It occurs during sleep, and the person is not aware of it. The grinding noise is usually noticed by the person sleeping next to them.
- Awake bruxism: This is clenching of the teeth or tensing of the jaw during the day, usually at moments of intense concentration, stress or tension. It most often takes the form of silent clenching rather than grinding.
The causes and treatment approaches for these two types differ in part. Both can also occur in the same person.
Causes of bruxism: stress, sleep and bite
There is no single cause of bruxism; many factors, such as stress, anxiety, sleep disorders, lifestyle habits and certain medications, can play a role together. Which factor is most prominent varies from person to person.
Stress and anxiety
Awake bruxism in particular is closely linked to stress, anxiety and intense mental effort. Concentrating at a computer for long periods, tensing up while driving or a demanding work pace can lead to clenching the teeth without realizing it.
Sleep-related factors
Sleep bruxism appears to be associated with the brain's brief arousal responses during the light stages of sleep. Sleep-related breathing disorders such as snoring and sleep apnea can also occur alongside bruxism. If nighttime grinding is accompanied by loud snoring, pauses in breathing and excessive daytime sleepiness, it is important to have this evaluated by a sleep specialist.
Lifestyle and medications
- High caffeine intake
- Alcohol and tobacco use
- Certain antidepressants and stimulant medications
- A family history of bruxism
The role of the bite
In the past, a misaligned bite was thought to be the main cause of bruxism. Current scientific opinion, however, holds that the bite plays a limited role in triggering bruxism. Nevertheless, a faulty bite can increase the strain that bruxism places on the teeth and the jaw joint.
What are the symptoms, and how does it damage the teeth?
The most common symptoms of bruxism are pain or fatigue in the jaw muscles in the morning, headaches, tooth wear and sensitivity. The symptoms may be mild, but when they continue for a long time, they can also lead to permanent problems in the teeth and the jaw joint.
- Pain, fatigue or tightness in the jaw muscles on waking in the morning
- Headaches that start at the temples
- Grinding noises at night
- Flattening, shortening and wear of the biting surfaces of the teeth
- Tooth sensitivity to cold and heat
- Cracks or fractures in the teeth, and broken fillings and crowns
- Notch-shaped loss of tooth structure at the necks of the teeth
- Pain, noise or a locking sensation in the jaw joint when opening the mouth
- Bite marks on the inside of the cheeks and a scalloped edge on the tongue
- Noticeable enlargement of the chewing muscles and widening of the facial contour
Long-term, severe bruxism can wear down the tooth enamel, exposing the underlying dentin, and can cause the teeth to become shorter. This leads to both aesthetic and functional problems and may require extensive restorative treatment. For this reason, it is important to notice it early and take preventive measures.
Treatment: night guards, Botox and behavioral methods
The treatment of bruxism aims less at completely eliminating the habit and more at protecting the teeth and the jaw joint, reducing symptoms and bringing the underlying factors under control. In most cases, more than one method is used together.
Night guard
A night guard is a hard protective appliance made from an individual impression and worn over the teeth during sleep. By preventing the teeth from touching each other directly, it prevents wear and helps distribute the load on the jaw muscles. A night guard does not cure bruxism, but it reduces the damage it causes. Ready-made soft guards sold over the counter, on the other hand, may not provide the same protection in terms of fit and hardness; in some people they can even increase clenching. For this reason, it is recommended that the guard be made by a dentist and checked regularly.
Botox injections
Botulinum toxin injections into the chewing muscles can temporarily reduce the muscle's contraction strength and, in some patients, ease the intensity of clenching and muscle pain. The effect is temporary and usually lasts a few months; it may need to be repeated. The suitability of this method, its possible side effects and who it may be appropriate for should be evaluated in detail by a doctor.
Behavioral approaches
- Awareness: Remembering during the day that the teeth should not touch and that, with the lips closed, there should be a slight gap between the teeth.
- Reminders: Checking your jaw position with small reminder notes on your phone or computer.
- Stress management: Regular exercise, breathing exercises, relaxation techniques and psychological support when needed.
- Sleep routine: Regular sleeping hours and less screen time before bed.
- Cutting down on caffeine, alcohol and smoking: Especially in the evening.
- Jaw exercises and warm compresses: These can help reduce muscle tension.
Restorative treatments such as fillings and crowns may be needed for worn or broken teeth. For these treatments to last, it is important to bring the bruxism under control and to wear a night guard.
Bruxism and orthodontic treatment
Orthodontic treatment does not directly cure bruxism; however, correcting a faulty bite can help distribute clenching forces more evenly across the teeth. People with bruxism can also have orthodontic treatment; this is taken into account when planning treatment.
In patients with bruxism who are undergoing clear aligner treatment, the aligners can partly reduce direct contact between the teeth. However, aligners are not designed as night guards and can wear down, crack or lead to damage to the attachments during heavy clenching. For this reason, if you notice unusual wear, holes or distortion in your aligners, it is important to let your orthodontist know. We discuss situations like these that can come up while wearing aligners in detail in our article on clear aligner problems.
If bruxism continues while a retainer is being worn after orthodontic treatment, the orthodontist plans how the retainer and the night guard will be used together. In some cases, it may be possible to design a single appliance that serves both purposes; this decision is made based on the orthodontist's assessment.
When should you seek help for bruxism in Ankara?
If you notice jaw pain in the morning, frequent headaches, tooth wear or broken fillings, it is recommended that you have an assessment before permanent damage occurs to your teeth. At our clinic in Oran, we examine the signs of wear on your teeth and your jaw joints and decide together on the protective approach that suits you; to make an appointment, you can reach us through our contact page.
Frequently asked questions
Does bruxism go away completely?
In most cases, bruxism is brought under control rather than completely eliminated. Its severity can decrease with stress management, a regular sleep routine and changes in habits. A night guard protects the teeth and the jaw joint from possible damage.
Can I use a ready-made night guard from the pharmacy?
Ready-made soft guards may not fit or protect as well as custom-made hard night guards. In some people, they can increase the clenching habit and strain the jaw joint. For this reason, it is recommended that a night guard be made by a dentist from an impression.
Is teeth grinding normal in children?
Nighttime teeth grinding is quite common in children, especially while they still have their baby teeth, and it often decreases as they grow. However, if it is accompanied by marked tooth wear, jaw pain, snoring or sleep problems, an assessment should be made. You can mention this to your dentist at your child's checkup appointments.
Does bruxism rule out clear aligner treatment?
Bruxism generally does not rule out clear aligner treatment, but it is taken into account in treatment planning. Since heavy clenching can cause wear or cracks in the aligners, regular checkups are important. If you notice any unusual changes in your aligners, you should let your orthodontist know.
