Teeth grinding, also known as bruxism, is a common problem that can lead to a host of dental issues, from worn-down teeth to jaw pain. If you’ve been told you grind your teeth at night or you wake up with a sore jaw, you might be considering a protective device. Two of the most common options are a bite splint and a night guard. While they might seem similar, they are actually designed for different purposes and can have different effects.
Imagine your teeth are like two sets of gears. When you chew, they work together smoothly. But when you’re stressed or sleeping, those gears can start to grind and rub against each other, causing damage. This grinding, called bruxism, can lead to serious problems like cracked teeth, headaches, and jaw joint issues. Luckily, there are tools to help protect your teeth: bite splints and night guards. While people often use the names interchangeably, they are not the same thing.
This guide will help you understand the differences, so you can talk to your dentist with confidence and get the best solution for your unique situation.
What is a Bite Splint?
A bite splint is a custom-made dental device, usually made from hard acrylic plastic. It fits over your top or bottom teeth and is designed to change how your jaw muscles and teeth interact. Think of it less as a simple barrier and more as a muscle “re-trainer.” The splint is carefully crafted to position your jaw in a way that encourages your muscles to relax.
The surface of a bite splint is smooth and firm, which prevents your teeth from locking together. When you try to clench or grind, your teeth simply glide against the smooth surface instead of digging into each other. This takes the stress off your jaw joints (the temporomandibular joints, or TMJs) and helps to relieve muscle tension and pain. A dentist Newport might recommend a bite splint if you have significant jaw pain, headaches, or a diagnosis of a TMJ disorder.
What is a Night Guard?
A night guard, on the other hand, is primarily a protective barrier. It’s also a custom-made device that fits over your teeth, but it’s typically made from a softer, more flexible material, though hard versions exist. Its main job is to create a cushion between your upper and lower teeth.
When you grind your teeth while wearing a night guard, you’re grinding against the guard’s plastic surface instead of your precious tooth enamel. This prevents the teeth from wearing down, chipping, or cracking. Night guards are the go-to solution for many people who simply need to protect their teeth from the damaging effects of grinding. They don’t necessarily aim to change your jaw’s position or treat a serious jaw disorder, but rather to act as a shield.
Differences Between Bite Splints and Night Guards
Here’s a simple way to look at the differences:
- Purpose: A bite splint is for therapy and muscle relaxation, often for those with jaw pain or TMJ problems. A night guard is for protection, preventing teeth from being damaged by grinding.
- Material and Feel: Bite splints are usually made of hard, rigid acrylic. Night guards are often softer and more flexible, though hard versions are available. The hard surface of a splint is key to its therapeutic function.
- Fit and Design: A bite splint is precisely engineered to affect your bite and jaw alignment. It’s a medical device designed to treat a specific condition. A night guard is designed to fit your teeth snugly and provide a simple barrier.
- Cost: Because a bite splint is a more complex, therapeutic device, it is generally more expensive than a night guard. We’ll dive into this a bit more later.
Who Needs a Bite Splint?
A dentist might recommend a bite splint for patients who experience more than just a simple grinding habit. Your dentist might recommend one if you experience:
- Significant Jaw Pain or Soreness: If you wake up with a tired, aching jaw, a splint can help.
- Headaches and Neck Pain: These can be related to muscle tension in your jaw, and a bite splint can help relieve them.
- Clicking or Popping in Your Jaw: This is a classic sign of a potential TMJ issue.
- A Diagnosis of Temporomandibular Joint (TMJ) Disorder: This is the most common reason a dentist would prescribe a bite splint. The splint is a key part of the treatment plan to help correct the jaw’s function.
Who Needs a Night Guard?
A night guard is the right choice for most people who grind their teeth but don’t have severe jaw problems. Your dentist might suggest a night guard if:
- You Have Worn-Down or Chipped Teeth: This is a clear sign that you’re grinding or clenching in your sleep. A night guard will prevent the damage from worsening.
- You Just Need Protection: If your dentist has simply noticed signs of grinding during a check-up, a night guard is the perfect preventative measure.
- You Want a Simple, Effective Solution: For many people, a night guard is all they need to protect their smile for years to come.
Benefits and Limitations of Each
Benefits of Night Guards
- Excellent Protection: A night guard is highly effective at preventing the physical wear and tear on your teeth.
- Relatively Affordable: They are generally less expensive than bite splints.
- Widely Available: You can get them from your dentist, and there are even some over-the-counter options (though custom-made is always best).
Limitations of Night Guards
- Doesn’t Treat the Root Cause: A night guard won’t fix the reason you’re grinding. It just protects your teeth from the results.
- Less Effective for Jaw Pain: If your main problem is jaw pain, a night guard might not provide the relief you need.
Benefits of Bite Splints
- Therapeutic Treatment: A bite splint can actually help manage symptoms and improve jaw comfort.
- Reduces Pain: It can provide significant relief from headaches, jaw pain, and muscle soreness.
- Prevents Future Damage: By addressing the underlying issue, it can stop the cycle of grinding and its related pain.
Limitations of Bite Splints
- More Expensive: They are a bigger investment due to their custom, therapeutic nature.
- Requires More Time and Expertise: The fitting process is more complex and involves multiple visits to your dentist.
Cost Comparison: Bite Splint vs Night Guard
The cost can vary depending on your location (for example, a dentist Newport might have different prices) and your insurance coverage.
- Night Guard: A custom-made night guard from a dentist generally costs a few hundred dollars. This is a worthwhile investment, as it will last for years and save you thousands in potential dental work down the line. Over-the-counter options are much cheaper but don’t offer the same level of protection or a proper fit.
- Bite Splint: A bite splint is more of an investment. The cost can be significantly higher, often a few hundred dollars more than a night guard, due to the specialised materials and the extra time and skill required to design and fit it. It’s a medical device, and its price reflects that.
When considering the cost, remember to check with your private health fund. They may cover a portion of the cost for either a night guard or a bite splint.
How to Choose the Right Option for Your Needs
This is the most important part: you can’t make the decision on your own. The only way to know for sure is to have a professional diagnosis.
- See the Dentist: If you think you might be grinding your teeth, the first step is to book an appointment with your dentist. They will examine your teeth and jaw for signs of wear and tear, and ask you about your symptoms, like headaches or jaw pain.
- Get a Diagnosis: The dentist will be able to tell you if a simple night guard is enough to protect your teeth or if a more advanced therapeutic device like a bite splint is needed to treat a jaw issue. They will consider your specific symptoms and the condition of your teeth and jaw.
- Discuss Your Options: Once you have a diagnosis, the dentist may explain the pros and cons of each option for your situation. You can then discuss the cost, maintenance, and what to expect.
Maintenance and Care for Bite Splints and Night Guards
Both devices are an investment in your dental health, so you need to take care of them.
- Cleaning: After each use, brush your device with a soft toothbrush and cool water. You can also use a non-abrasive soap. Avoid toothpaste, as it can be too abrasive and scratch the surface.
- Storage: Always store your device in its case when you’re not using it. This keeps it clean, safe, and away from pets who might see it as a chew toy.
- Avoid Heat: Never clean your device with hot water, and don’t leave it in a hot car. High temperatures can cause the plastic to warp and ruin the fit.
- Regular Check-ups: Bring your device to your regular dental check-ups. Your dentist can give it a deep clean and check to make sure it’s still fitting correctly.
Conclusion
While they might look similar, a bite splint and a night guard serve very different purposes. A night guard is a protective shield, perfect for preventing the damaging effects of grinding on your teeth. A bite splint is a therapeutic tool designed to treat and relieve the pain associated with jaw and muscle problems. The right choice for you depends entirely on your specific symptoms and the underlying cause of your dental issues.
Don’t try to guess which one you need. The best step you can take is to make an appointment with the dentist to get a professional opinion and a custom solution that will protect your smile and improve your quality of life.
FAQ
- Can I just buy a night guard from the chemist? While you can, they are not custom-fit. They are often bulky and uncomfortable, and a poor fit can actually make your grinding worse or cause jaw soreness. A custom-made one from your dentist is always the better choice.
- How long does a night guard or bite splint last? With proper care, a custom-made device can last anywhere from 5 to 10 years, sometimes longer.
- Will my health insurance cover the cost? Many Australian health funds provide a benefit for dental devices like night guards and bite splints. It’s best to check with your specific fund to see what your policy covers.
Don’t Let Teeth Grinding Damage Your Smile or Cause You Pain.
If you think you may be grinding your teeth or have noticed jaw discomfort, booking a dental assessment is a good next step.
Newport Dental Centre can examine your teeth and discuss whether a night guard or bite splint could help protect your teeth and support jaw comfort.



