Night Guards

What Bruxism Is—and Why It Often Happens at Night

Bruxism is the medical term for the repeated clenching or grinding of the teeth. While some people only clench during the day when stressed or concentrating, many sufferers grind their teeth during sleep without realizing it. Nighttime grinding is particularly damaging because it can continue for long periods quietly while the jaw muscles and joints are under constant strain.

The causes of bruxism are often multifactorial. Emotional stress and anxiety are frequent triggers, but sleep disorders such as obstructive sleep apnea, certain medications, an uneven bite, missing teeth, or dental restorations that don’t align properly can also play a role. Genetics and habits developed over time may further increase the risk.

Left unchecked, bruxism can lead to persistent jaw pain, recurring headaches, flattened or fractured teeth, increased tooth sensitivity, and even disturbances in the temporomandibular joint (TMJ). Recognizing the signs and seeking a professional assessment is the first step toward protecting oral health and improving comfort.

How a Night Guard Works to Protect Teeth and Jaws

A night guard, sometimes called an occlusal guard or bite splint, is a simple, noninvasive appliance worn over the teeth during sleep. Its primary purpose is to act as a protective barrier between the upper and lower teeth, preventing direct tooth-to-tooth contact that causes wear, chips, and cracks. By absorbing and redistributing biting forces, the guard reduces the mechanical stress placed on enamel and dental restorations.

Beyond shielding the teeth, night guards help relax overworked jaw muscles. When the appliance creates a small separation between the jaws, it can interrupt the reflex patterns that drive clenching and grinding, easing pressure on the TMJ and the surrounding muscles. Many patients notice fewer morning aches and less facial tension once they consistently use a well-fitting guard.

Night guards don’t cure the underlying causes of bruxism, but they are an effective protective strategy. When combined with other interventions—such as stress management, sleep disorder treatment, or dental adjustments—a custom night guard becomes an important part of a comprehensive plan to reduce damage and improve long-term comfort.

Comparing Night Guard Types: Which One Might Be Right for You?

Night guards come in a few different forms, and the best choice depends on factors like the severity of grinding, jaw anatomy, and patient preference. Over-the-counter options include stock and boil-and-bite guards. These are less expensive and can be useful for short-term protection, but they often offer a less precise fit and may be bulky or uncomfortable for prolonged use.

Custom night guards made at a dental practice are tailored to an individual’s bite. These appliances are usually fabricated from durable acrylic or layered materials that balance comfort and durability. A custom fit minimizes movement during sleep, reduces the need for adjustments, and is less likely to irritate soft tissues. For severe grinders, rigid acrylic guards are often recommended because they hold up better against heavy forces.

Soft or dual-laminate guards can be appropriate for mild to moderate clenching, offering greater comfort for some patients. Your dentist can explain the trade-offs—comfort versus longevity—and recommend the material and design that best protects your teeth while addressing your personal needs.

What to Expect When Getting a Custom Night Guard

The process of obtaining a custom night guard typically begins with a thorough dental exam and a discussion of symptoms and medical history. Your dentist will evaluate tooth wear, jaw function, and any signs of TMJ issues. If sleep apnea or another medical condition is suspected, a referral for further evaluation may be recommended before selecting an appliance.

Next comes the impression or digital scan of your teeth. Many practices now use intraoral scanners to capture an accurate 3D model of the bite; traditional impressions with dental putty remain an effective option as well. The lab uses this model to craft a night guard that matches the contours of your teeth for a precise, comfortable fit.

When the guard is ready, you’ll return for a fitting. The dentist will check fit, comfort, and how the appliance affects jaw position and bite. Minor adjustments can be made to eliminate pressure points and ensure the night guard remains stable during sleep. You’ll also receive instructions on wearing it, cleaning it, and when to schedule follow-up visits to assess fit and effectiveness.

Daily Care, Lifespan, and When to Schedule a Follow-Up

Proper care extends the life of a night guard and keeps it hygienic. Rinse the appliance after use, brush it gently with a soft toothbrush (avoid abrasive toothpastes), and store it in a ventilated case away from heat. Periodically soaking the guard in a dentist-recommended cleaner can help control odor and buildup, but avoid household chemicals or hot water that can warp the material.

The lifespan of a night guard varies based on material, how intensely a person grinds, and hygiene habits. Some guards remain effective for several years, while others need replacement sooner. Regular dental checkups are the best way to monitor wear—your dentist can spot early signs that the appliance is thinning, cracking, or no longer providing adequate protection.

Contact your dentist if the guard becomes uncomfortable, if you notice new or worsening jaw pain, if teeth feel loose, or if the appliance shows visible damage. Timely follow-up can prevent further dental problems and ensure your night guard continues to serve as a reliable safeguard for your smile.

At True Vine Dental Care, we approach bruxism with a focus on prevention, comfort, and individualized care. If you suspect you grind or clench your teeth, arranging a professional evaluation is the best way to protect your oral health. Contact us for more information or to schedule an assessment and learn which night guard option is right for you.