Snoring, sleep apnoea and teeth grinding: how they're linked and how we can help
If you snore, wake up tired no matter how long you slept, or grind your teeth at night, these things may be more connected than they first appear. All three can be signs of a disrupted airway during sleep — and for many people, addressing it leads to better sleep, better health and better protection for their teeth.
This article explains the link between snoring, obstructive sleep apnoea and teeth grinding, how you can screen yourself at home, and how a custom oral appliance can help. It is the companion to our article on teeth grinding and protection splints.
The link between teeth grinding and sleep apnoea
Teeth grinding (bruxism) is very often linked to snoring and obstructive sleep apnoea. In many people, grinding appears to be the body's response to a narrowed or briefly blocked airway during sleep. That is why we take grinding as more than just a dental issue: anyone who grinds their teeth should also be screened for snoring and sleep apnoea.
This connection is the reason the right treatment differs from person to person. If there is no snoring or sleep apnoea, a custom-fitted protection splint is the right way to protect your teeth. But if sleep apnoea is part of the picture, treating the airway problem itself can be far more valuable — for your sleep, your long-term health, and your teeth.
What is snoring, and when does it matter?
Snoring happens when the airway at the back of the throat narrows during sleep. As you breathe, the soft tissues vibrate, producing the familiar sound. On its own, snoring is often harmless. But it can also be the most obvious warning sign of obstructive sleep apnoea — around one in five people who snore have some degree of sleep apnoea behind it. That is why persistent, loud snoring is worth paying attention to rather than brushing off.
What is obstructive sleep apnoea?
Obstructive sleep apnoea (OSA) is a condition where the muscles around the throat relax during sleep and the airway repeatedly narrows or collapses, causing breathing to pause or become very shallow. Each time this happens, oxygen levels dip and the brain briefly rouses you to restart normal breathing — often without you ever being aware of it. This can repeat dozens or even hundreds of times a night, fragmenting your sleep and preventing the deep, restorative rest your body needs.
OSA is far more common than most people think, and the majority of cases are undiagnosed. Common signs include:
- Loud, habitual snoring
- Waking unrefreshed, and excessive daytime sleepiness
- Morning headaches
- Poor concentration, memory or mood changes
- Gasping, choking or pauses in breathing noticed by a partner
- Waking frequently to use the bathroom
It is worth taking seriously because untreated OSA is associated with higher blood pressure, heart problems and irregular heartbeat, stroke, type 2 diabetes and a greater risk of accidents from daytime tiredness. Treating it well can make a meaningful difference to your overall health.
Screening yourself at home
A good first step is to notice the patterns. Two simple questions capture a lot: do you snore? and are you often tired during the day? If the answer to either is yes, it is worth looking further.
A widely used screening tool is the Epworth Sleepiness Scale, a short questionnaire that asks how likely you are to doze off in everyday situations — reading, watching television, sitting in traffic, and so on. Each is scored from 0 to 3, and the total gives a guide:
- 0–10: normal range
- 11–15: excessive daytime sleepiness — worth seeking advice
- 16 or more: high levels of excessive daytime sleepiness — worth seeking advice
The Epworth scale is a screening guide, not a diagnosis, and should be considered alongside your wider health and professional advice. At Grange Road Dental we also use a more detailed questionnaire that Dr Andrew has developed, which helps us build a fuller picture and decide whether a sleep study is the sensible next step.
Download the printable sleep screening checklist
The pathway: from screening to diagnosis
If screening suggests sleep apnoea may be a possibility, the next step is a sleep study — the standard way to diagnose OSA and measure how severe it is. Many sleep studies can now be done at home with a small portable monitor rather than overnight in a clinic. The results are interpreted by a sleep physician, who grades the condition as mild, moderate or severe.
You do not have to navigate this alone. At Grange Road Dental we can screen you, talk through your symptoms, and help you arrange a sleep study, working alongside your GP and a sleep physician. Importantly, dentists do not diagnose sleep apnoea on their own — diagnosis is a medical one — but we are a valuable part of the care team, both in spotting the signs early and in providing oral appliance treatment when it is appropriate.
Treatment: when a mandibular advancement splint can help
What happens next depends on what the sleep study shows.
If you have mild to moderate sleep apnoea, a mandibular advancement splint is often an excellent option. This is a custom-made oral appliance, worn only during sleep, that gently holds your lower jaw slightly forward. That small change opens up the space at the back of the throat and helps keep the airway from collapsing, reducing both snoring and apnoea events.
For many people it is a comfortable and practical alternative to CPAP (continuous positive airway pressure). CPAP is highly effective and remains the standard treatment for more severe cases, but the mask, hose and machine do not suit everyone, and a significant number of people find it hard to keep using. A mandibular advancement splint has no mask, no hose and no noise, needs no power, and is small enough to take when you travel — which means people tend to wear it consistently. Because it is custom-made to your teeth, it fits precisely and comfortably. It is worth noting that oral appliances are generally not the first-line treatment for severe sleep apnoea, so the right choice is always made together with your sleep physician based on your sleep study.
If there is no snoring or sleep apnoea but you are still grinding your teeth, then a custom-fitted protection splint is the right device — its job is to protect your teeth from wear and take pressure off the jaw joint, rather than to reposition the jaw for breathing.
How our dental team fits in
At Grange Road Dental we work alongside GPs and sleep physicians to support coordinated care. We can screen you using the Epworth scale and our own detailed questionnaire, help you arrange a sleep study, and — once a diagnosis is in place — design and fit a mandibular advancement splint where it is suitable. Regular dental check-ups and professional cleans also give us the chance to notice the dental signs of grinding and airway problems early and raise them with you.
If you snore, wake up tired, or grind your teeth — or your partner has noticed you pausing or gasping in your sleep — we are happy to help you take the first step. Call us on (07) 3281 6666 or book an appointment online.
