How to Stop Grinding Your Teeth at Night

Teeth grinding, or bruxism, is often dismissed as a stress habit and treated with a night guard. But in most cases, nightly grinding is your body's response to a restricted airway. Treating the cause, not just the symptom, is what actually stops it.

DEFINITION

What Is Bruxism?

Bruxism is the medical term for involuntary teeth grinding or jaw clenching. It can happen during the day (awake bruxism) or during sleep (sleep bruxism), and the forces involved can be up to six times greater than normal chewing - strong enough to cause progressive damage to teeth, restorations, and jaw structures.[1]

22% global prevalence of bruxism, sleep and awake combined[2]
6x grinding force compared to normal chewing[3]
69% increase in grinding and clenching patients reported during the pandemic[3]

Sleep bruxism is the most clinically significant form because it is harder to control and frequently goes unnoticed by the person doing it. Episodes typically occur during lighter sleep stages and transitions, often coinciding with brief awakenings, and can last seconds to minutes, repeating many times throughout the night.

The most important thing to understand about bruxism is this: in most adults, it is not a standalone problem. It is frequently a downstream symptom of a restricted airway during sleep. Treating the teeth without addressing why the grinding is happening is the most common reason bruxism treatment fails.

TWO TYPES OF BRUXISM

Sleep Bruxism vs. Awake Bruxism

Bruxism is classified based on when it occurs. The two forms have different drivers and require different evaluation approaches.

ROOT CAUSES

Most clinically significant

Sleep Bruxism

Unconscious grinding or clenching during sleep, often linked to airway obstruction and sleep apnea. Occurs during lighter sleep stages and arousals. Cannot be consciously controlled since it happens during unconsciousness, so addressing the root cause is essential.

Daytime

Awake Bruxism

Clenching or grinding during waking hours, frequently linked to stress, concentration, or anxiety. More responsive to behavioral awareness techniques and stress management, though it can still contribute to jaw and tooth damage over time.

What Causes Sleep Grinding at Night?

The cause of bruxism is multifactorial, but one driver stands above the rest in adults - and it is the one most commonly missed.

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Sleep Apnea, the Most Common Driver

When the airway becomes restricted during sleep, the body responds with reflex jaw movements to help advance the lower jaw and reopen the airway. This rhythmic activity manifests as grinding or clenching. Many patients experience significant reduction or elimination of bruxism once their sleep apnea is effectively treated, which is why a night guard alone so often falls short.

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Stress and Psychological Factors

  • Daily stress and anxiety, particularly for awake bruxism
  • Tension that carries into sleep, increasing jaw muscle activity
  • Underlying mood disorders associated with elevated bruxism rates
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Structural and Dental Factors

  • Misaligned bite or uneven tooth contacts
  • Missing or crooked teeth altering jaw mechanics
  • Narrow airway anatomy contributing to nighttime obstruction
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Lifestyle and Substance Factors

  • Caffeine and alcohol use, particularly close to bedtime
  • Smoking and tobacco use
  • Certain medications, including some antidepressants, associated with increased bruxism
  • Recreational substance use

SIGNS TO WATCH

Bruxism Symptoms

Bruxism symptoms can be minimal at first, and many people are unaware they grind their teeth until a dentist notices wear patterns or a partner hears the grinding at night.

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Dental Signs

Worn, flattened, chipped, or cracked teeth
Increased tooth sensitivity to hot, cold, or sweet
Damage to crowns, fillings, or other restorations
Grinding sounds during sleep noticed by a partner
In severe cases, teeth worn down to stumps
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Physical Symptoms

Jaw soreness, tightness, or pain, especially in the morning
Headaches, particularly upon waking
Earaches without ear infection, referred pain from the jaw joint
Clicking, popping, or limited jaw movement
Sleep disruption for both the patient and their partner

WHY IT MATTERS

How Bruxism Affects Whole-Body Health

Because chronic bruxism is so often a marker of disrupted sleep, its consequences extend well beyond the teeth and jaw.

Dental and Structural Damage

Progressive tooth wear, fractures, and damage to restorations accumulate over years of nightly grinding. Left untreated, severe cases can require extensive restorative work including crowns, root canals, implants, or dentures.

Temporomandibular Disorder (TMD)

The forces generated during bruxism place significant strain on the temporomandibular joint and surrounding muscles, making chronic grinding a major contributing factor to TMD, causing jaw pain, clicking, limited range of motion, and myofascial pain.

Sleep Fragmentation

Bruxism episodes coincide with brief arousals that prevent deep, restorative sleep, for both the person grinding and their bed partner who hears it. This compounds into daytime fatigue, mood changes, and cognitive effects over time.

The Underlying Airway Problem

When bruxism is driven by sleep apnea, the grinding itself is only the visible symptom. The repeated airway restrictions causing it carry their own cardiovascular, metabolic, and cognitive risks, which is why identifying the root cause matters far more than protecting the teeth alone.

PEDIATRIC CARE

Bruxism in Children

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Is your child's grinding just a phase, or a sign of something else?

Childhood teeth grinding is common, and pediatricians often describe it as something kids outgrow. In many cases, however, it follows the same pattern seen in adults, a sign that the airway is working harder than it should during sleep.

Children who grind their teeth at night should be evaluated for enlarged tonsils or adenoids, mouth breathing, allergies, or other airway obstructions - particularly if grinding is accompanied by snoring, restless sleep, or daytime behavioral changes. Addressing the airway during childhood growth windows can resolve grinding while also supporting healthy craniofacial development.

HOW TO STOP GRINDING TEETH

Bruxism Treatment at Rebis Health

Effective bruxism treatment starts with identifying why the grinding is happening - not just protecting the teeth from it. At Rebis, our multidisciplinary team evaluates the airway alongside the dental presentation, so treatment addresses the actual cause.

1

Comprehensive Airway and Sleep Evaluation

Because sleep apnea is the most common root cause of bruxism, evaluation begins with a sleep history review and, where indicated, a home sleep apnea test or in-lab polysomnogram. This step determines whether nighttime grinding is a downstream airway symptom before any dental treatment plan is finalized.

2

Treating the Underlying Sleep Apnea

When sleep apnea is identified as the driver, treating it through CPAP, oral appliance therapy, or other airway interventions often produces a significant reduction or elimination of grinding directly, without needing to rely on protective appliances alone.

3

Custom Night Guards and Protective Appliances

While night guards do not stop grinding or address its cause, a properly fitted custom appliance protects teeth from further damage during the evaluation and treatment process. We fit these as part of a comprehensive plan, not as a standalone fix.

4

TMJ and Bite Assessment

Functional assessment of the temporomandibular joint and bite alignment identifies structural contributors to grinding and any TMD that has developed as a result. Treatment may include bite adjustment, myofunctional therapy, or targeted exercises to reduce jaw muscle tension.

5

Stress and Lifestyle Support

For bruxism with a significant stress or awake component, our integrative team supports stress management strategies, evaluates caffeine and alcohol patterns, and reviews medications that may be contributing, coordinated alongside the airway and dental evaluation, not separately from it.

Frequently Asked Questions:

Teeth Grinding

  • Sleep bruxism is unconscious teeth grinding or jaw clenching during sleep that's often much stronger than normal jaw activity. Signs include morning jaw soreness, worn teeth, headaches, and grinding sounds noticed by partners.

  • Yes, sleep apnea is the most common underlying cause of bruxism. When breathing becomes restricted during sleep, the body responds with jaw movements to help open the airway. Treating sleep apnea often dramatically reduces or eliminates grinding.

  •  While night guards protect teeth from damage, they don't address the underlying cause. We recommend comprehensive evaluation to identify and treat root causes like sleep apnea while using protective appliances as needed during treatment.

  •  Many patients experience significant reduction or elimination of bruxism when sleep apnea is effectively treated. However, individual responses vary, and some may need additional interventions for stress management or TMJ dysfunction.

  • While stress can contribute to bruxism, sleep apnea remains the most common underlying cause. Our comprehensive evaluation helps distinguish between stress-related grinding and sleep apnea-driven bruxism.

  • Traditional night guards primarily protect teeth but can sometimes worsen breathing problems. POD (Preventive Oral Devices) provide tooth protection while creating more tongue space, potentially helping with airway function.

  • We may recommend sleep testing (home or in-lab studies) to document breathing patterns and determine if sleep apnea is contributing to your bruxism. This helps guide the most effective treatment approach.

  • Beyond dental damage, bruxism can cause TMJ dysfunction, chronic headaches, and may indicate underlying sleep apnea that increases cardiovascular disease risk. Early treatment addressing root causes is important for overall health.

  • Timeline varies based on underlying causes. Addressing sleep apnea may show improvement within weeks to months. Protective appliances provide immediate tooth protection while working on underlying issues.

  • Yes, children commonly develop bruxism related to enlarged tonsils/adenoids, narrow airways, or mouth breathing. Early intervention can address breathing issues and prevent long-term dental and jaw problems.

  • Our comprehensive Five Finger Approach evaluates all potential contributors including sleep apnea, stress, airway function, and jaw mechanics. We focus on treating root causes rather than just protecting teeth, leading to more effective long-term outcomes.

  • Our multidisciplinary team coordinates sleep medicine, dental, and integrative approaches in one location. This ensures comprehensive evaluation and treatment of all factors contributing to your bruxism.

  • If underlying causes like sleep apnea are effectively managed, bruxism typically remains controlled. However, new stressors, medication changes, or worsening sleep apnea can cause symptoms to return, emphasizing the importance of ongoing care.

  • Coverage varies by plan and specific treatments. Sleep apnea evaluation and treatment are often covered by medical insurance, while dental protective appliances may be covered by dental insurance. We work with patients to maximize insurance benefits.

Sources

  1. MedlinePlus. Bruxism. National Library of Medicine. medlineplus.gov
  2. Zielinski G et al. Global prevalence of sleep and awake bruxism 2024. Referenced via en.wikipedia.org/wiki/Bruxism
  3. Consumer Reports and American Dental Association. How to Quit Grinding Your Teeth. consumerreports.org
  4. Rebis Health. Teeth Grinding and Bruxism Treatment. rebishealth.org