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Bruxism (teeth grinding)

Identifying the underlying causes of teeth grinding can help prevent further dental damage and highlight areas where lifestyle or health adjustments may be needed.

Bruxism is a common condition with multiple underlying causes. Discover how to manage and treat it effectively.

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What is bruxism?

Bruxism, also known as teeth grinding, is the habit of unconsciously gritting or grinding teeth, especially during situations of stress or sleep. This condition can also include clenching or gnashing your teeth, usually without realizing it. Bruxism is more prevalent at night, making it challenging to detect without professional help.

Symptoms of bruxism

If you've ever woken up with a headache or a sore jaw, you may be experiencing symptoms of bruxism. This condition affects around 15% of adolescents, but its prevalence decreases with age, affecting only about 8% of middle-aged adults and 3% of older adults.¹



1: Machado E, Dal-Fabbro C, Cunali PA, Kaizer OB. Prevalence of sleep bruxism in children: a systematic review. Dental Press J Orthod. 2014 Nov-Dec;19(6):54-61. doi: 10.1590/2176-9451.19.6.054-061.oar. Epub 2014 Dec 1. PMID: 25628080; PMCID: PMC4347411.

What causes bruxism?

Bruxism, or teeth grinding, can be caused by a variety of factors:

Stress and anxiety

High levels of stress and anxiety can lead to increased muscle tension, resulting in teeth grinding.

Sleep disorders

Conditions like sleep apnea can trigger bruxism as the body reacts to airway obstructions.

Misaligned teeth

Malocclusion, or misalignment of teeth, can cause the jaw to work improperly, leading to grinding.

Medications

Excessive caffeine, alcohol consumption, and smoking can heighten muscle activity, causing teeth grinding.

Lifestyle factors

Excessive caffeine, alcohol consumption, and smoking can heighten muscle activity, causing teeth grinding.

Genetics

Bruxism can run in families, indicating a potential genetic predisposition.

Types of bruxism

Find out which type of teeth grinding you experience:

A person in a white robe lies on a bed, appearing to experience discomfort or pain, perhaps from grinding teeth in sleep.

Sleep bruxism

Sleep bruxism takes place during slumber, particularly in lighter sleep stages. Classified as a sleep-related movement disorder, it frequently coincides with conditions like obstructive sleep apnea. This nocturnal grinding can result in tooth wear, jaw pain, and morning headaches. Diagnosis often requires clinical examination or polysomnography, with treatment options ranging from night guards to medications, sometimes addressing underlying sleep issues.

A woman with long brown hair and wearing a pink top has a slightly tense expression, clenching her teeth while awake, and touching her face. The background is a solid light blue.

Awake bruxism

Awake bruxism occurs during waking hours, often triggered by mental health issues such as stress, anxiety, or intense concentration. While primarily characterized by teeth clenching, it can lead to temporomandibular joint (TMJ) disorders and facial muscle pain. Management typically involves stress reduction techniques and behavioral therapy, with attention paid to potential exacerbating factors like caffeine consumption or certain medications. 

Impact of bruxism on teeth

Let's talk about how teeth grinding, or bruxism, affects our pearly whites. It's not the most pleasant topic but understanding it can help us take better care of our smiles! 

Wearing down of teeth

You know how sometimes you might clench your jaw when you're stressed? Well, when this happens a lot, especially at night, it can be tough on your teeth. Think of it like sandpaper slowly wearing down wood - except in this case, it's your teeth getting the rough treatment.

Increased sensitivity

Over time, this grinding can make your teeth more sensitive. Yikes! Suddenly, that ice cream cone might not be as enjoyable. But don't worry, it's not all doom and gloom. 

Flatter appearance

The constant pressure can also lead to some unwanted changes. Your teeth might start to look a bit flatter on top, like little mountains losing their peaks. In some cases, teeth can even crack or chip. Ouch! 

Rough on fillings and crowns

Now, if you've had any dental work done, like fillings or crowns, they might need a bit more TLC. The grinding can be extra hard on these. 

Untreated bruxism can lead to:

  • Tooth pain or sensitivity 

  • Worn enamel 

  • Tight jaw muscles 

  • Chipped or cracked teeth 

  • Headaches 

  • Earaches 

  • Neck and facial pain 

  • Sleep problems 

  • Temporomandibular joint (TMJ) disorders

 man and a woman in scrubs sit in a dental office. The man points to his teeth while talking to the woman.

When to see a dentist for bruxism

But here's the good news: dentists are like detectives when it comes to spotting signs of teeth grinding. Regular check-ups can catch it early, before it becomes a big problem. And there are lots of ways to help, like wearing a night guard (think of it as a cozy sleeping bag for your teeth). 

Remember, everyone's teeth are different, and what happens with grinding can vary from person to person. The most important thing is to chat with your dentist if you're concerned. They're there to help keep your smile bright and healthy! So next time you're at the dentist, why not ask them about it? It's always better to be in the know when it comes to your teeth.

Bruxism treatment options

These custom-fitted devices create a barrier between your upper and lower teeth, protecting them from damage without stopping the grinding.

Techniques like meditation, yoga, or counseling can help manage the stress that often triggers bruxism. Even simple deep breathing exercises before bed might make a difference.

Exercises to relax jaw muscles may reduce nighttime grinding.

If misaligned teeth are contributing to the problem, your dentist might recommend braces or other dental work. 

Improving sleep habits and treating sleep disorders like sleep apnea can sometimes reduce bruxism. The patient may be referred for a sleep study to determine sleep disorders such as sleep apnea.

Cutting back on caffeine, alcohol, and smoking, especially before bedtime, might help. Additionally, becoming aware of clenching or grinding habits can help you stop when you catch yourself doing it during the day.

These clear aligners can help protect your teeth from grinding while also straightening them. They provide a cushion to prevent damage and improve overall dental alignment. 

Bruxism FAQs

To stop teeth grinding at night, you can help manage stress with relaxation techniques, create a calming bedtime routine, limit caffeine and alcohol intake, and visit your dentist regularly. By incorporating these strategies into your daily routine, you can effectively manage and reduce teeth grinding at night, protecting your oral health and improving your overall well-being.

Bruxism, or teeth grinding, can be caused by various factors. Stress and anxiety are common triggers, leading to unconscious clenching or grinding, especially during sleep. Misaligned teeth or an abnormal bite can also contribute to bruxism. Additionally, lifestyle factors such as caffeine and alcohol consumption, smoking, and certain medications can increase the likelihood of teeth grinding. Understanding these causes can help in implementing effective prevention strategies.

To stop clenching your jaw, practice mindfulness to relax jaw muscles, implement stress-relief techniques, perform jaw exercises, maintain good posture, and avoid chewy foods. 

Teeth grinding at night, also known as sleep bruxism, can be caused by various factors. Stress and anxiety are common culprits, often leading to unconscious clenching or grinding during sleep. Additionally, certain medications, especially some antidepressants, have been linked to increased teeth grinding. It's important to note that in many cases, a combination of these factors may be at play, making it crucial to consult with a dental professional for proper diagnosis and treatment.

Bruxism pain manifests in various ways, often affecting multiple areas of the head and face. One of the most common symptoms is jaw pain, particularly noticeable upon waking in the morning. This discomfort can range from a dull ache to a sharp, intense pain in the jaw joints and muscles. Tooth sensitivity is another frequent complaint, with sufferers experiencing discomfort when consuming hot, cold, or sweet foods and beverages. Chronic headaches, especially tension-type headaches, are often associated with bruxism due to the strain placed on facial and cranial muscles.

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