Custom Night Guards for Teeth Grinding in Seoul
A custom night guard is a thin appliance worn during sleep that protects teeth, crowns and veneers from grinding. At Lucid Dental Clinic in Gangnam, Seoul, custom night guards are listed from ₩600,000, confirmed at consultation. Making one takes at least two visits: an exam and scan, then a fitting and bite adjustment.
Key facts
- Common signs of grinding include jaw pain, headaches, worn teeth and sensitivity (NHS).
- Stress and anxiety are the most common triggers of bruxism (NHS).
- A custom night guard at Lucid Dental is listed from ₩600,000 (≈US$429 at ₩1,400/US$).
- Night guards are generally not covered by Korean national health insurance.
- Making a guard takes at least two visits: records, then fitting.
- Dr. Park Hyun-min has completed an advanced course with the Korean Academy of TMJ.
Medically reviewed by Dr. Park Hyun-min, Prosthodontist, Chief Dentist at Lucid Dental Clinic. Last reviewed September 27, 2026. This page is general information, not a diagnosis; individual results vary, and a consultation and exam are required.
How do I know if I grind my teeth at night?
Many people only find out from a partner, a dentist, or from symptoms in the morning. The NHS lists jaw pain, headaches, earache, worn or broken teeth, tooth sensitivity and disturbed sleep among the signs of teeth grinding (bruxism).
Other clues include:
- Waking with a tired or tight jaw, or temple headaches
- Flattened, chipped or shortened front teeth
- Ridges on the side of the tongue or lines inside the cheeks
- Crowns, fillings or veneers that crack or come loose more than expected
- Clicking or discomfort in the jaw joint
What causes teeth grinding?
Stress and anxiety are the most common triggers, according to the NHS, which also links grinding to sleep problems such as sleep apnea, some medicines, smoking, and heavy alcohol or caffeine use. Long working hours, jet lag and a big move abroad can all play a part, which is one reason expats sometimes notice it for the first time after arriving in Korea. If you snore heavily or stop breathing at night, mention it; a doctor may want to check for sleep apnea.
What is a night guard and how does it help?
A night guard (also called an occlusal splint) is a custom-made appliance, usually for the upper or lower teeth, worn while you sleep. It doesn't necessarily stop you grinding, but it places a durable layer between your teeth so the force goes into the guard instead of your enamel, crowns or veneers. The NHS notes that a dentist may recommend a mouth guard or splint to protect teeth from damage.
| Option | Fit | Durability | Typical use |
|---|---|---|---|
| Custom night guard from a dentist | Made from a scan or impression of your teeth | Designed for nightly, long-term wear | Ongoing grinding, protecting crowns, veneers or implants |
| Over-the-counter "boil and bite" guard | Molded at home, bulkier | Often wears through faster | Short-term stopgap |
| Sports mouthguard | Thick, loose for sleep | Built for impact, not grinding | Contact sports, not night use |
How much does a night guard cost in Seoul?
At Lucid Dental Clinic, a custom night guard is listed from ₩600,000 on our official non-covered fee table, about US$429 at roughly ₩1,400 per US$ (check today's rate). The fee is confirmed at consultation. Night guards are generally not covered by Korean national health insurance; if you have private insurance, ask whether it covers occlusal splints and request an itemized English receipt.
What's the process for getting a night guard?
- Exam. The dentist checks tooth wear, jaw muscles, the jaw joint and any existing crowns or veneers. X-rays may be taken if there is cracking or pain.
- Record your bite. An impression or digital scan of your teeth and bite is taken.
- Fabrication. The guard is made to fit your teeth.
- Fitting visit. The dentist checks the fit, adjusts the bite surface so your jaw closes evenly, and shows you how to insert, remove and clean it.
- Follow-up. A review after a few weeks helps fine-tune comfort. Guards are checked at routine visits for wear.
This means at least two visits. If you're visiting Seoul briefly, tell us your dates so we can plan whether it can be finished during your stay.
Should I get a night guard after veneers, crowns or implants?
If you grind, very often yes. Porcelain and zirconia are strong, but repeated grinding forces can chip veneers or crowns and overload implants. Many dentists recommend a guard as part of protecting new cosmetic or restorative work. If you're having LUCINATE veneers or other work done in Seoul, ask whether a guard is right for you. Our veneers aftercare guide explains more.
Is teeth grinding linked to jaw joint (TMJ) problems?
It can be. The NHS notes that jaw pain from grinding can lead to temporomandibular disorder (TMD), which affects the jaw joint and chewing muscles. Dr. Park Hyun-min, a certified prosthodontist, has completed an advanced course with the Korean Academy of TMJ; see his profile. Jaw pain has many causes, so an exam is needed. Severe or persistent joint pain, locking, or limited opening may need further assessment.
What can I do at home to reduce grinding?
The NHS suggests stress-reducing activities such as breathing exercises and regular exercise, a consistent sleep routine, and cutting back on caffeine, alcohol and smoking. Avoid chewing gum and very hard foods if your jaw is sore, and try a cold pack on the jaw muscles for short periods. During the day, notice whether you clench while working at a screen; the resting position is lips together, teeth apart.
How do I care for my night guard?
Rinse it after each use, brush it gently with cool water and mild soap, let it dry, and keep it in its case. Hot water can warp it. Bring it to check-ups so the dentist can look for wear or cracks. For worn or sensitive teeth caused by grinding, see sensitive teeth treatment; for planning your visit from abroad, see our international patients hub.
Book a consultation
Tell us about your symptoms and any crowns or veneers you have. Message us on WhatsApp at +82-10-8354-2975 or use our WhatsApp booking link. Lucid Dental Clinic is on the 3rd–4th floors of the COWAY Building, 606 Nonhyeon-ro, Gangnam-gu, directly in front of Exit 3 of Eonju Station (Line 9). Hours: Mon & Fri 10:00–18:00, Tue–Thu 10:00–20:30, Sat & public holidays 10:00–16:00; closed Sundays.
Frequently asked questions
Does a night guard stop teeth grinding?
Not always. A night guard mainly protects your teeth and restorations from the forces of grinding. Reducing triggers such as stress, caffeine and alcohol may lower how often you grind.
Will a night guard feel uncomfortable?
Most people need a few nights to get used to it. Some notice extra saliva or mild pressure at first. If it feels tight or your bite feels off in the morning, the dentist can adjust it.
How long does a custom night guard last?
It depends on how hard you grind and how you care for it. Some last several years; heavy grinders may wear through sooner. Bring it to check-ups so it can be inspected.
Should I wear the guard on my upper or lower teeth?
Either can work. The dentist chooses based on your bite, any missing teeth, and existing crowns or veneers, and on what you'll find easier to wear.
Can children use a night guard?
Grinding in children is common and often outgrown. Because children's teeth and jaws are still growing, a dentist should assess whether a guard is needed and how often it would need replacing.