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How Do Dental Night Guards Work?

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A clear dental nightguard hovering over a retainer case

If you wake up with a sore jaw or a dull headache, you could be clenching or grinding your teeth at night. This common habit, called bruxism, can cause wear and tear on your smile. A dental night guard works by creating a protective layer between your upper and lower teeth, absorbing the force of grinding and helping your jaw muscles relax.

If your dentist at Shin Dentistry notices signs of wear on your teeth during your regular dental exams and cleanings, they may recommend a custom dental night guard to prevent further damage and relieve any symptoms you’re experiencing.

Signs You Need a Night Guard

You may not even know you grind your teeth, as it often happens while you sleep. But your body might give you some clues, and you may benefit from a night guard if you experience:

  • Jaw pain, facial soreness, or earaches that feel worse in the morning
  • Worn-down, flattened, or chipped teeth
  • Increased tooth sensitivity to hot or cold
  • Headaches that seem to centre in your temples
  • Disrupted sleep for you or your partner from the sound of grinding

How a Custom Night Guard Protects Your Smile

A night guard creates a physical barrier between your upper and lower teeth. This small appliance does more than just shield your enamel; it helps your entire jaw feel more comfortable.

Creates a Protective Barrier

The guard is made from a durable material that absorbs the force when you clench or grind. Instead of your teeth wearing against each other and damaging the sensitive tooth enamel, they meet the soft, protective surface of the appliance.

Reduces Muscle Strain

By slightly separating your jaw, the night guard prevents your muscles from clenching as tightly. This slight separation can help ease tension and reduce the pain associated with bruxism.

Distributes Pressure Evenly

When you clench your teeth, the force spreads evenly across the night guard. This distribution prevents specific teeth from bearing excessive pressure, reducing the risk of fractures or other damage that may require restorative dentistry.

Getting Your Custom Night Guard

Getting a night guard that fits you perfectly is a straightforward process, typically starting with a professional dental exam. A custom fit makes the appliance comfortable and effective, so you’ll be more likely to wear it every night.

Your First Visit for Impressions

During your full dental exam, our team can determine whether a night guard would be beneficial.

If a mouth guard is the best way forward, we can take precise impressions of your teeth. These moulds provide the foundation to craft your custom night guard.

Your Second Visit for a Perfect Fit

When your night guard is ready, we’ll schedule a return to ensure it fits. The dentist checks how it feels and makes any minor adjustments needed to ensure it is comfortable and secure while you sleep.

How to Clean a Night Guard

Keeping your night guard clean is essential for your overall oral health. A simple routine helps keep it fresh and in good condition for years to come:

  1. Rinse it every morning: When you take your guard out, rinse it with cool water to wash away debris
  2. Brush it gently: Use a soft-bristled toothbrush and a non-abrasive soap or cleaner and lightly brush the guard, but avoid regular toothpaste, as it can scratch the surface
  3. Let it air dry: Place your night guard on a clean surface and let it air dry completely before putting it away
  4. Store it safely: Keep your guard in its protective case when you are not wearing it
A person sleeping in bed smiling to showcase the retainer they are wearing while they sleep

Common Questions About Night Guards

It’s normal to have questions about wearing a new dental appliance, especially since teeth grinding can have such a significant impact.

Are They Comfortable to Wear?

A custom-made night guard is designed for your specific bite, so it should feel comfortable. It might take a few nights to get used to the feeling, but most people adjust quickly.

Can a Night Guard Move Your Teeth?

A properly fitted night guard from a dental professional will not shift your teeth. Its purpose is to hold your teeth in their natural position, unlike orthodontic treatments designed for alignment. The guard’s main job is to protect your teeth from pressure.

How Long Does a Night Guard Last?

The lifespan of a night guard depends on how much you grind your teeth. With proper care, it can last for many years, offering consistent protection for your smile.

Discuss Dental Night Guards with Our Team

A professionally made appliance offers a comfortable fit and durable materials for long-lasting protection. At Shin Dentistry, our team can help you find a solution that protects your oral health. If you wake up with jaw pain or headaches, call us to book an appointment, and let’s see if a custom night guard is right for you.

Written by Dr. Charles Shin

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