Mandibular Advancement Splint Therapy
A Custom Oral Appliance For Snoring And Sleep Apnoea
What Is A Mandibular Advancement Splint?
A mandibular advancement splint, often called a MAS, is a custom-made oral appliance worn while you sleep.
It looks a little like a mouthguard, but it is designed for a different purpose. Instead of protecting your teeth, it gently holds your lower jaw in a slightly forward position. This can help create more space at the back of the throat, making it easier for air to move through overnight.
For suitable patients, MAS therapy may help reduce snoring and support better breathing during sleep.
At Dental Sleep Professionals, we provide custom MAS therapy for snoring and obstructive sleep apnoea, with care led by experienced dental sleep medicine clinicians.
What Can MAS Therapy Help With?
MAS therapy is commonly used for people who snore, have obstructive sleep apnoea, or struggle with CPAP.
It may help with:
- Snoring that disrupts your partner
- Waking up tired or unrefreshed
- Mild to moderate obstructive sleep apnoea
- Poor sleep caused by airway narrowing
- CPAP discomfort or intolerance
- Travel-friendly sleep apnoea treatment
- A dry mouth or discomfort caused by CPAP
MAS therapy does not suit every patient, and it is not a replacement for proper diagnosis. But for the right person, it can be a practical and comfortable way to treat sleep-related breathing issues.
Oral appliances are commonly used for snoring and mild to moderate obstructive sleep apnoea, and may also be considered for people who cannot use CPAP.
What Our Patients Say
The Benefits Of MAS Therapy
- Comfortable To Wear. A custom MAS is made for your mouth, not pulled off a shelf. It is designed to fit securely over your teeth and feel as comfortable as possible while you sleep.
- No Mask, Hose Or Machine. There is no face mask, no tubing, no air pressure and no bedside machine. For many patients, that alone makes treatment easier to accept.
- Quiet And Partner-Friendly. MAS therapy is silent. It can help reduce snoring without adding machine noise into the bedroom.
- Easy To Travel With. Your appliance is small, lightweight and easy to pack. No power cords. No water chamber. No bulky equipment.
- Simple Nightly Routine. Place it in before sleep, remove it in the morning, clean it, and store it safely. That’s it.
- Customised To You. Your appliance is fitted to your teeth and jaw position, then reviewed for comfort, effectiveness and long-term use.
How Does MAS Therapy Work?
When you fall asleep, the muscles around your throat relax.
For some people, this causes the airway to narrow. As air moves through the smaller space, the soft tissues can vibrate, which causes snoring. In obstructive sleep apnoea, the airway can become partly or fully blocked, disturbing breathing and sleep quality.
A mandibular advancement splint helps by gently positioning the lower jaw forward. This can move the tongue and soft tissues away from the back of the throat, helping keep the airway more open.
MAS Therapy Vs CPAP
CPAP is a common and effective treatment for obstructive sleep apnoea, but some people find it hard to use consistently.
A mandibular advancement splint offers a different style of treatment. It does not push air into the airway. It works by physically supporting the jaw and airway position.
- CPAP
- Bulky mask that restricts movement
- Constant machine noise
- Requires power, tubing and bulky travel gear
- Frequent cleaning of hoses and filters
- Disruptive to your partner
- Many users stop using it within 12 months
- MAS
- Slim, custom-fit device with no straps
- Completely silent
- Compact and portable — no power required
- Easy to clean in seconds
- Quiet, discreet and relationship-friendly
- High long-term comfort and patient satisfaction
How Our MAS Therapy Works
Book your consultation
Meet with our team and discuss your symptoms.
Get a diagnosis
If needed, we’ll help you organise a sleep study.
Get fitted
We take digital scans and provide your custom appliance.
Enjoy better sleep
Start sleeping soundly — no machines, no hassle.
Why Choose Dental Sleep Professionals?
Led by Dr Joachim Ngiam (PhD), our team brings over 15 years of expertise in treating snoring and sleep apnoea.
We work closely with sleep physicians, GPs and ENTs across Australia to ensure safe, evidence-based care.
You’re in good hands:
- Over 10,000 appliances fitted
- TGA-approved devices only
- All staff are trained in dental sleep medicine
- Clinics across Australia
- No referral required
Frequently Asked Questions
No. It may look similar, but it is designed for a different purpose. A mouthguard protects your teeth. A mandibular advancement splint is designed to support your jaw position and airway while you sleep.
MAS therapy may reduce snoring in suitable patients by helping keep the airway more open and reducing soft tissue vibration.
MAS therapy can help some patients with obstructive sleep apnoea, particularly mild to moderate cases. Suitability depends on your diagnosis, sleep study results, symptoms and oral health.
Not always. CPAP can be very effective, especially for severe sleep apnoea. MAS therapy may be a better fit for people who cannot tolerate CPAP or want a smaller, quieter and more portable option.
No. You can book directly with Dental Sleep Professionals. We also accept referrals from GPs, sleep physicians, ENTs and other health professionals.
Yes. A custom MAS is made for your mouth and adjusted to your jaw position. Over-the-counter devices are not fitted or managed with the same level of clinical control.
Some patients adjust quickly. Others need a little time. It may feel unusual at first, but a custom fit helps make the adjustment process easier.