Night Guards for Teeth Grinding: Benefits, Fit, and When You Need One

Do you wake up with headaches or jaw pain? Have you noticed chipped or worn teeth? You may be experiencing bruxism, also known as nighttime teeth grinding. Left untreated, bruxism can lead to cracked enamel, jaw pain, and even long-term TMJ issues.

One of the most effective treatments is a custom-fit night guard, also called an occlusal guard. At Matthews Family Dentistry, we provide night guards tailored to your smile that help protect your teeth and improve sleep quality.

What Is a Night Guard (Occlusal Guard)?

A night guard (also called an occlusal guard, bite plate, or dental guard) is a thin, custom-fit appliance that creates a protective barrier between your upper and lower teeth.

Unlike sports mouth guards — which protect against physical impacts — night guards are designed to cushion your teeth from grinding forces while you sleep. By reducing clenching, they ease strain on the jaw and prevent enamel wear.

Why Do People Grind Their Teeth?

• Stress and anxiety are the leading causes of bruxism.
  
• Sleep disorders such as sleep apnea can also contribute.
  
• Studies show nearly 1 in 12 adults experience chronic grinding.
  
• During the COVID-19 pandemic, dentists reported a surge in bruxism due to stress.

Children may also grind their teeth, though most outgrow the habit by age five.

Signs You Might Need a Night Guard

• Morning headaches
  
• Sore jaw or temples
  
• Worn, chipped, or cracked teeth
  
• Clicking or pain in the jaw joint (TMJ)
  
• Daytime sleepiness or unrestful sleep
  
• A partner hearing grinding at night

If these symptoms sound familiar, it’s time to ask your dentist about a custom night guard.

Custom vs. Store-Bought Night Guards

Custom Night Guards (from your dentist):

• Designed specifically for your bite
  
• Comfortable and precise fit
  
• Durable materials that can last 3–5 years
  
• Best protection against long-term enamel damage

Over-the-Counter Guards:

• Inexpensive and widely available
  
• Bulkier fit, less comfortable
  
• Last 6–12 months on average
  
• Risk of shifting teeth if worn long-term

For lasting protection, a dentist-made guard is the safest and most effective choice.

Benefits of Wearing a Night Guard

• Protects Teeth: Prevents enamel wear and cracks.
  
• Relieves Pain: Reduces jaw soreness, tension, and TMJ strain.
  
• Improves Sleep: Helps you (and your partner) sleep without grinding noises.
  
• Saves Money: Prevents costly restorative treatments like crowns, implants, or bridges.

Learn more about prevention and early treatment options on our preventive dentistry page.

How to Care for a Night Guard

• Rinse after each use
  
• Brush gently with soap and a soft toothbrush (avoid toothpaste)
  
• Deep clean weekly with denture tablets or dentist-approved solutions
  
• Store in a ventilated case
  
• Keep away from hot water (heat can warp the guard)

When to Replace a Night Guard

• Visible cracks or thinning
  
• Persistent discoloration
  
• Guard feels loose or uncomfortable
  
• Symptoms return despite nightly use

FAQs

How long does a custom night guard last?
With proper care, 3–5 years.

Can a night guard cure TMJ?
It won’t cure TMJ, but it relieves strain on the joint and muscles, reducing pain.

Is an over-the-counter guard safe?
Okay for short-term use, but not recommended long-term — a custom guard offers the safest protection.

Protect Your Smile While You Sleep

Bruxism can silently damage your smile, but the right night guard can protect your teeth and help you wake up pain-free. Schedule a night guard consultation with Matthews Family Dentistry today.