Combining a Nasal Stent With a Mandibular Advancement Device and What Works Together
Combining a Nasal Stent With a Mandibular Advancement Device Means Treating Two Airway Collapse Points at Once
For snorers whose noise comes from both the nose and the jaw, pairing these two devices may treat what neither one fixes alone.
Why Combine a Nasal Stent With a Mandibular Advancement Device
You can combine a nasal stent with a mandibular advancement device when your snoring comes from two separate places at once: a narrow or floppy nasal-and-palate airway, and a tongue or jaw that slides backward once you fall asleep. Neither device on its own was built to fix both problems, which is exactly why so many snoring types respond differently to different devices, and why "combination snorers" often feel let down after trying just one fix.
A mandibular advancement device, or MAD, is a mouthguard-style appliance that gently pulls the lower jaw forward, which pulls the tongue base away from the back of the throat. A nasal stent is a soft silicone tube placed inside the nostril, with a tip that sits near the soft palate to keep the nasal-and-palatal airway open. When someone snores through both the nose and the mouth, or reports that their MAD helps the throat noise but they still wake up with a dry mouth and nasal congestion, that is usually a sign that only one collapse site is being treated.
- Combination snorers have two collapse sites: the nasal/palatal airway and the tongue/jaw base.
- A nasal stent and a mandibular advancement device each treat only one of those sites on their own.
- Pairing them mechanistically addresses both, which is why the combination is worth understanding, not just trying at random.
The Two Collapse Sites Each Device Actually Treats
Snoring and mild-to-moderate obstructive sleep apnea (OSA) happen when soft tissue in the upper airway vibrates or partially collapses during sleep. That tissue can collapse at more than one level, and identifying which level is yours matters more than picking a popular device. A large 16-country European survey presented at the European Respiratory Society (ERS) International Congress in 2018 estimated that around 90 million Europeans have moderate-to-severe OSA, out of roughly 175 million with OSA of any severity, which shows how common a more-than-one-collapse-site pattern is likely to be.
A nasal stent addresses the nasal passage and the retropalatal area, the region behind the soft palate and uvula where floppy tissue narrows the airway as you breathe in. A mandibular advancement device addresses the retroglossal area, the space behind the tongue, by physically repositioning the jaw so the tongue cannot fall backward as far. Neither device changes the other collapse site, which is the mechanical reason a single-device approach often leaves some snoring or breathing disruption behind.
- Nasal stents work on the retropalatal/nasal collapse site; MADs work on the retroglossal (tongue-base) site.
- These are anatomically different problems, so one device rarely resolves both.
- An estimated 90 million Europeans live with moderate-to-severe OSA, which makes accurate self-assessment of your own collapse pattern worthwhile.
What the Clinical Evidence Says About Combining Nasal and Oral Therapy
Clinical research on combining nasal-airway therapy with a mandibular advancement device shows a measurable benefit over using a MAD alone. A 2022 crossover pilot study published in the Annals of the American Thoracic Society found that adding a mouth-closing strategy to a MAD lowered the median apnea-hypopnea index (AHI, the number of breathing disruptions per hour) from 10.5 events per hour with the MAD alone to 5.6 events per hour with the combination, in a group of 21 patients. The share of patients reaching an AHI under 10 rose from 43% to 76% once the nasal/mouth-closing element was added.
Separately, a 2019 study in Acta Biomedica tested an internal nasal dilator in people who use CPAP and found it significantly lowered the air pressure needed to control their apnea events, from an average of 11.4 to 10.8 cmH2O (a measure of airway pressure), while also improving sleep quality compared with external nasal strips. A 2022 review published on PubMed Central (PMC) also noted that people with increased nasal airway resistance tend to have a lower response to MAD therapy and lower long-term adherence than people who breathe freely through the nose, which is the clinical rationale for treating the nasal side alongside the jaw side rather than the jaw side only.
Not every study favors combination therapy outright. A 2024 randomized trial in JAMA Otolaryngology–Head & Neck Surgery compared a custom MAD against a bundle of external nasal-strip and positional therapies and found the MAD alone produced a higher partner-rated responder rate (91%) than the nasal bundle (58%). That result is a reminder that a MAD is a strong standalone option for many people, and that nasal-side therapy is meant to complement a MAD's effect on tongue-base collapse, not replace it.
- Adding nasal/mouth-closing therapy to a MAD nearly halved median AHI in a 2022 pilot study.
- Nasal airway resistance is linked to lower MAD response and adherence, supporting a combined approach.
- A MAD alone can still outperform a loose bundle of nasal products, so combination therapy should complement, not substitute for, a well-fitted MAD.
Nasal Stent vs Mandibular Advancement Device vs Using Both Together
Choosing between a nasal stent and a mandibular advancement device often comes down to where your airway actually narrows, and combining both only makes sense once you understand what each one is, and is not, doing for you.
| Approach | Collapse site treated | Addresses mouth breathing | Evidence snapshot | Access |
|---|---|---|---|---|
| Intranasal stent (e.g. Back2Sleep) | Nasal passage and retropalatal (soft palate) area | Not directly; keeps the nasal route open but does not reposition the jaw | Linked to lower CPAP pressure needs and better sleep quality in nasal-dilator users (Acta Biomedica, 2019) | CE-certified Class I device, no prescription, starter kit from around EUR 39 |
| Mandibular advancement device | Retroglossal (tongue-base) area | Partially; a forward jaw position can reduce some gaping but is not a nasal fix | 91% partner-rated responder rate alone in a 2024 randomized trial (JAMA Otolaryngology) | Usually fitted by a dentist or bought over the counter; cost varies by provider |
| Nasal stent + MAD combined | Both the nasal/palatal site and the tongue-base site | Improves overall airflow balance, though a persistent mouth-breathing habit may still need separate attention | Median AHI fell from 10.5 to 5.6 events/h; responders rose from 43% to 76% (Annals ATS, 2022) | No prescription needed for the nasal side; MAD access depends on how it was obtained |
- Each device is strong at its own collapse site and limited outside it.
- The combination targets two sites, which is why the evidence shows a bigger AHI drop than either device studied alone.
- A nasal stent adds no prescription burden or ongoing cost to a MAD you already use.
How to Combine a Nasal Stent With a Mandibular Advancement Device Safely
Combining a nasal stent with a mandibular advancement device works best when you introduce it in a specific, low-friction order rather than wearing both for the first time on the same night without a plan.
1Rule out significant nasal blockage first
If you have a known deviated septum, nasal polyps, or a cold, a nasal stent has less open space to work with. Clear or treat significant congestion, with a decongestant or an ENT (ear, nose and throat) check, before adding a nasal stent to your routine.
2Insert the nasal stent before the mandibular advancement device
Fit the nasal stent first, while your jaw is still relaxed and your mouth is free to guide the tip into place. Trying to insert a nasal stent after your jaw is already held forward by a MAD is more awkward and less comfortable.
3Fit the mandibular advancement device over it
Once the nasal stent feels settled and you are breathing comfortably through your nose, insert the MAD as you normally would. The two devices sit in different places, the nose and the mouth, so they do not physically interfere with each other.
4Let your jaw settle before you try to sleep
Spend a few minutes sitting up with both devices in place before lying down. This lets you confirm normal nasal airflow and a comfortable jaw position while you can still easily adjust either device.
5Track how you feel for the first two weeks
Note snoring loudness (ask your partner), morning dry mouth, jaw soreness and nasal comfort each morning. Combination therapy tends to show its benefit within the first one to two weeks of consistent nightly use.
6Get checked if snoring or gasping continues
If loud snoring, gasping, or witnessed pauses in breathing continue despite using both devices correctly, that is a signal to speak with a doctor about a sleep study rather than adding a third device.
- Order matters: nasal stent first, MAD second, sitting upright before lying down.
- Clear significant nasal blockage before combining, since a stent needs open nasal space to work.
- Give the combination one to two weeks and track objective signs like partner-reported snoring.
When Not to Combine Two Snoring Devices
Combining a nasal stent with a mandibular advancement device is intended for snoring and mild-to-moderate OSA, not for severe cases. Devices like these are generally studied and used in the AHI range under roughly 30 events per hour; some research on nasal-plus-jaw combinations shows benefit even at an AHI of 15 or higher, but once sleep apnea reaches the severe range, CPAP (continuous positive airway pressure) therapy or other physician-directed care is the appropriate path, not a self-managed device stack.
If you suspect moderate-to-severe OSA, based on loud nightly snoring, witnessed breathing pauses, or persistent daytime sleepiness, confirm it with a sleep study before combining devices on your own. A physician or sleep clinic can arrange in-lab polysomnography or, increasingly, a home sleep apnea test, which is a more accessible way to get an initial severity estimate before deciding whether device therapy or CPAP is the right next step.
- This combination is for primary snoring and mild-to-moderate OSA, not severe OSA.
- Unresolved nasal obstruction should be addressed before adding a nasal stent.
- Jaw pain, TMJ symptoms, or nasal irritation are signals to stop and reassess, not push through.
Comfort, Cleaning and Troubleshooting While Wearing Both
Comfort with two devices at once usually comes down to fit, hygiene and patience during the first few nights. A nasal stent that is the wrong size for your nostril will feel intrusive, so most starter kits include multiple sizes so you can find the one that sits securely without pressure. A MAD that is too tightly adjusted in its first setting can also cause more jaw tension than necessary; most adjustable MADs are meant to be dialed in gradually over several nights.
Clean each device according to its own instructions, since a nasal stent and a MAD are handled differently. Rinse a silicone nasal stent with mild soap and water and let it air-dry fully before reinserting it, and follow your MAD manufacturer's cleaning guidance, since some materials are sensitive to hot water or certain cleaning solutions. Keeping both devices in separate, ventilated cases helps avoid cross-contamination and makes your nightly routine faster.
Cost is often the deciding factor in whether people even try combination therapy, and it does not have to be a barrier. A closer look at how CPAP, oral appliances and nasal stents compare on real-world cost shows that pairing an affordable, over-the-counter nasal stent with a MAD you already own is typically far less expensive than moving straight to CPAP, while still addressing both collapse sites.
- Correct sizing matters more than brand for comfort with either device.
- Clean each device separately, following its own care instructions.
- Combining an affordable nasal stent with an existing MAD is usually cheaper than jumping to CPAP.
What Back2Sleep Users Say
Frequently Asked Questions
Can you use a nasal dilator and a mandibular advancement device at the same time?
Yes, a nasal stent and a mandibular advancement device (MAD) can be worn together because they sit in different places, the nose and the mouth, and treat different collapse sites. The nasal stent keeps the nasal and palate airway open while the MAD holds the jaw forward. Insert the nasal stent first, then fit the MAD over it.
Is it safe to combine two anti-snoring devices?
Combining a nasal stent with a mandibular advancement device is generally safe for snoring and mild-to-moderate OSA, since research shows the two together can lower AHI further than either device alone. It becomes riskier only if you skip a sleep-study check for suspected severe OSA, or ignore jaw pain, TMJ symptoms, or nasal irritation.
What is the best combination of devices for mixed mouth and nose snoring?
For snoring caused by both nasal or palate collapse and jaw-related throat collapse, pairing an intranasal stent with a mandibular advancement device is the mechanistically sound combination, since each targets a different site. Studies on nasal-plus-jaw therapy show median AHI dropping from 10.5 to 5.6 events per hour compared with a MAD alone.
Does a mandibular advancement device work if you have a blocked nose?
A mandibular advancement device can still work with mild congestion, but significant nasal blockage, such as a deviated septum, is linked to a lower response and lower long-term adherence, according to a 2022 review. Clearing nasal obstruction first, or adding a nasal stent once it is resolved, generally helps a MAD perform better.
Do I need a sleep study before combining a nasal stent and a mandibular advancement device?
If your snoring is mild with no signs of moderate-to-severe OSA, you can typically try the combination without testing first. But if you have witnessed breathing pauses, loud gasping, or suspect an AHI of 30 or higher, get a sleep study, in a lab or at home, before combining a nasal stent and a MAD.
Can I wear a nasal stent with a mouth guard for snoring?
Yes, a nasal stent and a mouth guard-style mandibular advancement device can be worn together safely, since the stent stays in the nostril and the guard sits over the teeth. Insert the nasal stent first, let your jaw relax, then fit the mouth guard for the most comfortable combined fit each night.
How do I know if my snoring is from my nose, throat, or jaw?
Nasal snoring often comes with daytime congestion or nighttime mouth breathing, throat or palate snoring sounds like vibrating or rattling, and jaw-related snoring is often associated with a recessed chin or a tongue that falls backward. A partner observation or a sleep study can help pinpoint which collapse site, or sites, are involved.
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