A nightguard is a custom-made dental appliance worn during sleep to protect teeth from grinding and clenching (bruxism). If you wake up with jaw pain, headaches, or worn-down edges, a dentist-made guard cushions your bite, prevents enamel damage, and relieves muscle tension much better than over-the-counter options.

At Fresh Smile Dental Care, we see this every week. Professionals working in the Asian Trade District come in saying their partner hears them grinding their teeth, or that they wake up with a tight jaw after weeks of high work stress. The good news: there is a simple solution. The bad news: the twenty-dollar drugstore guard almost never works.

What is bruxism and why does it happen?

Bruxism is the involuntary habit of clenching or grinding your teeth. It exists in two forms: daytime clenching, which we often do during traffic on Harry Hines Boulevard or in front of the computer, and nighttime grinding, which occurs during sleep without the person realizing it.

The most common causes include stress and anxiety, sleep disorders such as obstructive sleep apnea, bite alignment issues, and certain medications (especially some antidepressants). According to the NIDCR, stress and anxiety are recognized factors that contribute to both daytime and nighttime bruxism.

Here is the problem. Most patients do not know they grind their teeth until their partner tells them, or until a dentist detects it during a routine cleaning. It happens all the time.

How do I know if I grind my teeth at night?

There are signs you can check yourself this morning:

• Sore or stiff jaw upon waking

• Dull headaches starting in the temples

• Tooth sensitivity that does not correspond to a cavity

• Flattened, chipped, or worn edges on teeth

• Scalloped edges on the sides of the tongue

• Your partner hears grinding sounds while you sleep

If you recognize three or more of these signs, an evaluation is worthwhile. Bruxism is estimated to affect 8% to 10% of adults, according to the American Academy of Sleep Medicine, with sleep bruxism being more common in young adults.

What damage can untreated bruxism cause?

This is what concerns dentists the most. Grinding forces can exceed 250 pounds per square inch, well above normal chewing. Over time, this causes:

• Enamel wear and microfractures

• Fractured teeth, broken fillings, and failing crowns

• Temporomandibular joint (TMJ) pain and limited jaw opening

• Gum recession caused by lateral forces

• Complications with dental implants if the bruxism is not managed

According to the ADA MouthHealthy, untreated bruxism can cause enamel wear, tooth fractures, and temporomandibular joint disorders. For patients who have invested in implants or veneers, sleeping without protection is not an option.

Store-bought guard vs. custom-made guard: what is the difference?

Let's be direct. "Boil-and-bite" guards purchased at CVS are bulky, do not fit well, and often shift during the night. In some cases, they can make the problem worse by altering the natural position of your bite.

A custom-made dental guard is different. It is fabricated from a digital scan or precise impression of your teeth. According to the ADA and the Journal of the American Dental Association, occlusal splints custom-made by a dentist offer a much more precise fit than over-the-counter versions.

There are three main materials:

• Hard acrylic: the most common for severe bruxism, lasts longer

• Soft: for mild clenching cases, more comfortable at first

• Dual-laminate: hard exterior, soft interior, balancing comfort and durability

A custom-made hard acrylic guard typically lasts 3 to 5 years with proper care, according to ADA clinical guidelines. A drugstore guard rarely lasts past 6 months.

What happens when you get a guard from the dentist?

The process is simpler than many patients imagine. At our office on Royal Lane, two blocks from the DART Green Line Royal Lane Station, here is how it works:

1. Bite exam and wear analysis. Dr. Yeo reviews the wear patterns on your teeth and evaluates your jaw function.

2. Digital scan or impression. No messy putty. The scan takes just a few minutes.

3. Fitting appointment. Usually 1 to 2 weeks later. We verify that it fits perfectly.

4. Adjustment period. The first few nights it feels strange. After 3 to 5 nights, most patients don't even notice it.

5. Follow-up review. We confirm the fit and check how your jaw has responded.

That's it.

How do I care for my guard so it lasts?

Maintenance is simple but important:

• Rinse with cold water after each use

• Brush gently with a soft-bristled toothbrush, without toothpaste

• Store dry in a ventilated case

• Bring it to your cleanings for inspection

• Replace every 3 to 5 years, or sooner if it shows holes

Toothpaste is abrasive and scratches the acrylic. Just a brush and water. It's that simple.

Frequently Asked Questions

Will a nightguard make me stop grinding my teeth completely?

Not necessarily. The guard does not stop the grinding habit, but it does absorb the force and protect your teeth, enamel, and joint. If your bruxism is linked to stress, stress management techniques and sometimes physical therapy can reduce the frequency. For many patients in Preston Hollow and Farmers Branch, a guard plus better sleep hygiene makes a huge difference.

Can I wear a nightguard if I have crowns, veneers, or implants?

Yes, and in fact we highly recommend it. Patients with expensive dental work benefit the most from a custom-made guard. The hard acrylic protects these restorations from grinding forces that could otherwise fracture or loosen them. Your dental investment deserves this layer of protection.

How much does a custom-made nightguard cost and does insurance cover it?

The cost varies depending on the material and complexity, but is generally between 400 and 700 dollars in the Dallas area. Many dental plans partially cover guards when there is a diagnosis of bruxism. At Fresh Smile Dental Care, we verify your coverage before treatment so there are no surprises.

Is bruxism related to sleep apnea?

Yes, there is a documented connection. According to the American Academy of Sleep Medicine, sleep bruxism is associated with obstructive sleep apnea in a significant proportion of patients. If you grind your teeth and also snore loudly or wake up tired, it is worth evaluating for apnea. Dr. Yeo can guide you if a sleep study is appropriate.

How long does it take to get used to sleeping with a guard?

Most patients adjust within 3 to 7 nights. The first few nights you may produce more saliva or feel the guard is awkward. This is normal and passes quickly. To speed up adaptation, we recommend wearing it for 30 minutes before going to sleep while reading or watching television.

Bruxism forces can exceed 250 pounds per square inch. Sleeping without protection is not an option for a smile you want to keep.

Do you wake up with a tight jaw or headaches? At Fresh Smile Dental Care, located on Royal Lane in the Koreatown Dallas corridor, we serve the Korean-American and Hispanic communities, as well as professionals in Northwest Dallas, in English, Korean, and Spanish. Call us at (214) 623-0880 to schedule a bite evaluation and find out if a nightguard is what you need to sleep soundly and protect your smile.