Adjustable vs fixed
Adjustable designs let you titrate the advancement — increasing it in small increments as the patient adapts. The MSi and Silensor-SL are titratable; the fused device is set to one position.
Snoreguards
Snoreguards & mandibular advancement devices
MSi, Silensor-SL and fused mandibular advancement devices (MADs) — also called mandibular advancement splints or anti-snoring appliances. Comfortable to wear, built to your prescription, and made to help patients and their partners get a better night's sleep.
3MAD designs to prescribe
7–10 DaysStandard turnaround
6 MonthsWarranty as standard
2 YearsMSi metal parts warranty
Terminology
What is a mandibular advancement device?
One appliance, a lot of names — they all describe the same thing.
A mandibular advancement device (MAD) is a custom-made appliance worn at night that holds the lower jaw in a slightly protruded position. That draws the base of the tongue forward and opens the pharyngeal airway, so air passes through without the soft-tissue vibration that causes snoring.
You will see the same appliance called a mandibular advancement splint (MAS), a mandibular repositioning device, an oral appliance, an anti-snoring device or simply a snoreguard. The clinical category is oral appliance therapy. Whichever term your referral uses, it is the same prescription to us.
MADs are prescribed for snoring and, where a clinician judges it appropriate, for mild to moderate obstructive sleep apnoea — often where CPAP is not tolerated. Diagnosis and the decision to treat sit with the clinician; our role is making the appliance to your prescription.
What we need from you
Upper and lower scans or impressions, plus the bite recorded in a protrusive position — as far forward as the patient comfortably tolerates. That registration is what tells us how much advancement to build in.
Why custom matters
Advancement only works if the appliance stays seated all night. A device made to an individual impression retains properly and holds the set position — which a generic boil-and-bite cannot do.
How it works
How a snoreguard works
Snoring happens when soft tissues at the back of the throat vibrate during sleep. As the body relaxes, the airway narrows — and the air rushing through the smaller space causes tissues to vibrate.
Every BDL snoreguard works the same way: it gently advances the lower jaw forward during sleep. This moves the base of the tongue out of the airway and opens the pharyngeal space, so air can pass through without tissue vibration.
- 1
Patient wears the custom-fitted appliance at night
- 2
Lower jaw is held in a slightly protruded position
- 3
Airway opens, tissue vibration stops, snoring reduces or ends
The snoreguard holds the lower jaw slightly forward, opening the airway so air passes through without vibration.
Our range
Snoreguards & MADs
Tap any appliance to see pricing, specs and ordering details.
01 
MSi
An adjustable MAD with up to 11mm of protrusive adjustment and a robust three-bar-hook design built to withstand heavy bruxism.
View details 02 
Silensor-SL
Two splints joined by flexible lateral connectors that hold the lower jaw forward — slim and comfortable, and clinically shown to reduce snoring in over 80% of patients.
View details 03 
Fused
A single-piece appliance set with the mandible protruded to maintain the airway all night. No hinges, no connectors — robust and low-maintenance.
View details Custom
Need something specific?
We also make bespoke snoring and sleep appliances. Get in touch and we'll build to your prescription.
Get in touch Suggestion tool
Open the finder → Not sure which snoreguard to prescribe?
Answer a few quick questions and we'll suggest an appliance to discuss for your case — a guide for dental professionals, not a prescription.
Easy to work with
Two ways to send us a case
Scan or impression — whichever your practice prefers.
Send a digital scan
From any major intraoral scanner (iTero, Medit, 3Shape) or email us STL/PLY/OBJ files.
How to connectPost an impression
Alginate or silicone in a rigid tray with a bite registration — or ask about free collection.
Arrange collection
Common questions
What dentists ask us
From scan requirements to warranty terms — here's everything you need to know before prescribing.
What scans or impressions do you need?
We need upper and lower scans or impressions, plus the bite recorded in a protrusive position — as far forward as the patient feels comfortable. This tells us how much jaw advancement to build into the appliance.
What warranty do you offer on snoreguards?
All snoreguards come with warranty coverage, subject to fair wear and tear:
- MSi Snoreguards — 6 month full warranty, 2 year metal part warranty
- Silensor-Sl Snoreguards — 6 month warranty
- Fused Snoreguards — 6 month warranty
Damage caused by incorrect insertion, removal or poor care isn't covered. We supply an advice leaflet with every appliance — extra copies available on request.
What is the turnaround time?
Our standard turnaround for snoreguards is 7–10 working days. Express services are available for patients who need theirs sooner — get in touch to discuss.
How are BDL snoreguards different to over-the-counter devices?
A professionally-made snoreguard is custom fitted using precise impressions or scans and a proper protrusive bite registration. This ensures a secure, comfortable fit and optimal jaw positioning to keep the airway open throughout the night.
Over-the-counter devices use generic moulds that often fit poorly, cause discomfort, and can't deliver the precise jaw advancement needed for long-term efficacy.
Can snoreguards be serviced or re-hinged?
After the initial 6-month warranty we recommend an appliance service — we'll clean and adjust the guard where needed.
Servicing is most important for the Silensor-Sl, though Fused and MSi appliances can also benefit. For Silensor-Sl, a re-hinge can be included in the service if required. We also supply instructions for changing the connectors.
What is a mandibular advancement device (MAD)?
A custom appliance worn at night that holds the lower jaw in a slightly protruded position, drawing the tongue base forward and opening the pharyngeal airway — so air passes through without the soft-tissue vibration that causes snoring.
MADs are prescribed for snoring and, where a clinician judges it appropriate, for mild to moderate obstructive sleep apnoea. Diagnosis and the decision to treat sit with the clinician.
Is a mandibular advancement splint the same as a snoreguard?
Yes. Mandibular advancement device (MAD), mandibular advancement splint (MAS), mandibular repositioning device, oral appliance and snoreguard all describe the same type of appliance — the clinical category being oral appliance therapy.
Whichever term your prescription uses, it is the same job for us.
Can the amount of advancement be adjusted?
On the titratable designs, yes. The MSi and Silensor-SL allow advancement to be increased in small increments as the patient adapts, which is useful when titrating towards an effective position. The fused device is made to a single set position.
Send us your first case
Open an account, request a price list, or just send a scan — we'll take it from there.