If your dentist has mentioned that you might need something to protect your teeth at night, you’ve probably come across both terms: night guard and bite plane, and wondered if they’re the same thing. The short answer is: sort of, but not exactly.
Both are worn while you sleep, both are designed to protect your teeth from grinding and clenching, and the terms are often used interchangeably, even by some dental offices. But there are real differences worth understanding, particularly when it comes to fit, materials, effectiveness, and what your dentist will actually recommend for your situation.
What Is a Night Guard?
“Night guard” refers to any appliance worn over the teeth during sleep to protect against the effects of grinding or clenching. It is the term you are most likely to see on pharmacy shelves, in online searches, and in general conversation.
The problem with it being such a broad term is that it covers a wide range of products, from a $20 boil-and-bite tray from the drugstore to a precision-crafted custom appliance made by your dentist. Those two things are very different in terms of fit, durability, and how well they actually work.
What Is a Bite Plane?

A bite plane is a specific type of custom-fitted dental appliance. It is the clinical term for what many dentists mean when they recommend a night guard.
At Avalon Dental, bite planes are:
- Made from hard acrylic material or thermoplastic
- Custom-fabricated from impressions of your teeth so they fit your bite precisely
- Typically worn over the upper teeth
- Covered by most dental insurance plans
- Available in clear or in your choice of colour
The hard acrylic material is an important detail. Unlike the soft, squishy trays sold over the counter, a hard acrylic bite plane does not give when you bite down into it which means it does not encourage more grinding, and it holds its shape and effectiveness over time.
A common concern we hear is that OTC night guards can actually make grinding worse for some people. Soft material gives the teeth something to sink into, which can encourage the jaw muscles to keep working rather than rest. A hard custom biteplane does not have this problem as there is nowhere for the teeth to bite into, so the jaw learns to stay still.
What About Snoring Appliances? Are Those the Same Thing?
No. Snoring appliances look similar but work in a completely different way. A biteplane sits over your teeth and protects them from grinding forces. It does not change the position of your jaw, it simply provides a barrier.
A snoring appliance works by gently repositioning the lower jaw slightly forward during sleep. This opens the airway and reduces the vibration in the throat that causes snoring. It is used for snoring and as an alternative to CPAP therapy for patients with sleep apnea.
The two appliances serve entirely different purposes. Some patients need one, some need the other, and occasionally someone needs both but they are not interchangeable.
Which One Do You Need?
That depends on what is actually going on with your teeth and jaw, which is why the starting point is always a proper examination rather than guessing. You are likely a candidate for a biteplane if:
- You are waking up with jaw soreness or tension headaches
- Your dentist has noticed wear patterns or flattening on your teeth
- You have been told you grind or clench at night
- You are getting tooth sensitivity that is not explained by a cavity or another obvious cause
- You have had cosmetic dental work like veneers or crowns that need protecting
- You have jaw clicking, popping, or discomfort
You may need a snoring appliance instead if:
- Your primary concern is snoring or disrupted breathing during sleep
- You have been diagnosed with mild to moderate sleep apnea and are looking for a CPAP alternative
- Your sleep partner is more concerned about the noise than you are about jaw pain
The best way to know for sure is to bring it up at your next dental visit. A comprehensive examination gives your dentist the full picture: your bite, your wear patterns, and your jaw joint health before making any recommendation.
What to Expect When Getting a Bite plane at Avalon Dental
The process is straightforward and does not require anything invasive. Here is what it typically looks like:
1. Consultation and examination
Your dentist will assess your teeth for signs of wear, check your bite, and discuss your symptoms. If a bite plane is recommended, impressions or a digital scan of your teeth will be taken.
2. Fabrication
Choose a clear bite plane or make it fun by selecting one or two colors! Once the lab receives your scan, they will immediately begin the fabrication process and return it to us within 1–2 weeks.
3. Fitting appointment
Once your bite plane is ready, we’ll book you an appointment and we’ll ensure the appliance fits properly and give you at-home care instructions.
4. Wearing it in
Most patients adjust within a few nights. Some notice reduced jaw soreness quite quickly. Your dentist will let you know how to care for it and when to come back for a check-in.
Not Sure What You Need? Start With a Conversation.
If you are waking up with a sore jaw, your partner is commenting on the noise, or your dentist has flagged some wear on your teeth, it is worth getting it looked at properly. A few minutes at your next appointment can save a lot of tooth structure down the road.
At Avalon Dental in St. John’s, we will take the time to understand what is actually going on before recommending anything. Whether you need a bite plane, a snoring appliance, or just some reassurance, we will give you a clear answer.


