GuideProsthodontics

Custom vs Over-the-Counter Snoring Mouthpieces

Snoring mouthpieces come in two main types: boil-and-bite devices from a store and custom devices from a dentist. Snoring can also hide sleep apnea, so screening comes first.

7 min readMedically reviewed by MSD Clinical Editorial TeamLast updated October 2, 2026

Key Takeaways

Snoring can be harmless, or it can be a sign of obstructive sleep apnea (OSA). Only a sleep study can tell the two apart.^[6]
Over-the-counter (OTC) snoring mouthpieces are FDA-cleared for snoring, not for treating sleep apnea. Clearance means the device was reviewed for a stated use. It does not mean it treats sleep apnea.^[3]^[4]
Custom devices did better than boil-and-bite devices in a head-to-head trial in people with mild sleep apnea and snoring: 60 percent versus 31 percent success.^[2]
The main risk of self-treating is a missed diagnosis. Quieter snoring does not prove that your breathing is safe.^[3]^[6]
Other risks include poor fit and jaw or tooth discomfort. In the same trial, one-third of people could not keep the boil-and-bite device in place overnight.^[2]
Prices vary widely. OTC devices cost a small fraction of a custom device. Medicare does not cover prefabricated oral appliances for sleep apnea.^[5]

Snoring or Sleep Apnea First

If you or your partner is looking for a snoring mouthpiece, the first question is not which product to buy. It is whether your snoring is only snoring. Snoring happens when tissues in the throat vibrate as air moves past them. It can be simple and harmless. But loud, frequent snoring is also one of the most common signs of obstructive sleep apnea (OSA), a condition in which the airway repeatedly closes during sleep.

This guide compares custom mouthpieces made by a dentist with over-the-counter (OTC) boil-and-bite devices, explains what FDA clearance means, and describes the risks of treating yourself. For treatment of diagnosed sleep apnea, see our page on dental treatment for sleep apnea.

Snoring Can Hide Sleep Apnea

The National Heart, Lung, and Blood Institute notes that if someone tells you that you snore or gasp for air during sleep, you may want to talk to your healthcare provider, who may have you do a sleep study.^[6] Sleep apnea is diagnosed by a physician using a sleep study, either in a lab or at home. A dentist or a store cannot diagnose it.

This matters because a mouthpiece can make snoring quieter without fixing the breathing problem. If you have OSA and only quiet the noise, you can feel like you solved it while the pauses in breathing continue.

Loud snoring most nights
Pauses in breathing or gasping that a partner notices
Waking with a dry mouth, headache, or a sense of not being rested
Daytime sleepiness, such as nodding off while sitting or driving
High blood pressure that is hard to control

Get screened before you buy

A short questionnaire called STOP-Bang is often used to screen for OSA risk. The FDA clearance document for one OTC snoring mouthpiece notes that the labeling includes this questionnaire and tells users to consult a physician if their answers suggest possible sleep apnea.^[3] Ask your physician about screening, or about a sleep study, before you try any device.

What FDA Clearance Means

Snoring and sleep apnea mouthpieces are regulated as Class II medical devices under federal rules. The regulation covers devices that reduce snoring and devices that treat OSA, and includes palatal lifting devices, tongue retaining devices, and mandibular repositioning devices.^[4]

FDA clearance is not the same as FDA approval. A cleared device passed a review showing it is substantially equivalent to a similar device already on the market for a stated use. It is not proof that a device treats sleep apnea. For example, one FDA clearance document for an OTC boil-and-bite mouthpiece lists its intended use as an aid to reduce snoring in adults, and says the device is cleared for over-the-counter use.^[3] Read the label. "FDA cleared" on a package may refer only to snoring.

No brand names are recommended here. If a package claims to treat sleep apnea, ask your physician whether that claim is supported for your diagnosis.

Custom vs Boil-and-Bite: What the Evidence Shows

Boil-and-bite and custom devices both hold the lower jaw forward. The difference is in the fit, the ability to adjust the position, and how well the device stays in place through the night.

How they differ

An OTC boil-and-bite device is made of plastic that softens in hot water. You bite into it to make an impression, and it comes in limited sizes and designs. A custom device is made in a dental lab from impressions or scans of your teeth. The dentist can adjust how far the jaw advances in small steps and can check how your teeth and jaws respond.

The AASM and American Academy of Dental Sleep Medicine guideline recommends that sleep physicians prescribe oral appliances for adults who request treatment of snoring without sleep apnea. It also suggests that, when an oral appliance is prescribed for sleep apnea, a qualified dentist use a custom, adjustable appliance over non-custom devices.^[1]

The head-to-head trial

In a randomized crossover trial, 35 people with snoring and mild sleep apnea (average AHI about 13) used a custom device and a thermoplastic boil-and-bite device for four months each. AHI improved only with the custom device. The custom device also reduced snoring more. Success rates were 60 percent for the custom device and 31 percent for the boil-and-bite device. About one-third of participants could not keep using the boil-and-bite device, mostly because it did not stay in place overnight. At the end, 82 percent preferred the custom device.^[2]

The authors concluded that the boil-and-bite device cannot be recommended as a treatment option for these patients, and that it should not be used as a screening tool to decide who will do well with a custom device.^[2] This is one trial with a small group, so results may differ in other groups. But it is a direct comparison, and the direction of the result is clear.

What we do not know

An overview of systematic reviews of mandibular advancement splints found that review quality varied and that only two of the eight reviews were higher quality.^[7] Evidence for specific OTC products is limited. Some people with simple snoring may do fine with a boil-and-bite device. The point is that you cannot know that without a screening or a sleep test.

Risks of Treating Yourself

The biggest risk of self-treating is not the device itself. It is what you miss.

A missed sleep apnea diagnosis. The NIH says untreated sleep apnea increases the risk for stroke, heart attack, and other serious problems, so quieting the sound is not enough.^[6]
A poor fit. A device that slips or does not advance the jaw enough may not help. Some people cannot keep it in all night.^[2]
Jaw, tooth, and gum discomfort. Any device that holds the jaw forward can cause soreness, extra saliva, dry mouth, or changes in your bite. The guideline suggests that a dentist oversee oral appliance therapy to watch for these problems.^[1]
Use with existing dental or jaw problems. Loose teeth, gum disease, or jaw joint pain should be checked by a dentist before you wear something that pulls on your jaw.
False reassurance. Less snoring can lead people to skip a needed sleep study.

Cost Ranges

Prices vary a great deal by brand, store, dentist, and location, and they change often, so treat any figure as a rough guide and check current prices. OTC boil-and-bite devices generally cost a small fraction of a custom device. Custom appliance costs vary widely by location, provider, and case. See our guide to oral appliance cost and insurance.

Insurance works differently for the two. A custom appliance for diagnosed sleep apnea may be covered by medical insurance when a physician orders it and it meets the plan's rules. Medicare's policy covers custom-fabricated devices that meet its criteria, provided and billed by a licensed dentist, and denies prefabricated devices as not reasonable and necessary.^[5] OTC snoring devices are usually paid for out of pocket. See our guide to oral appliance cost and insurance for more detail, and our comparison of whether mouth guards work for sleep apnea.

How to Decide

A simple path works for most people.

Step 1: Tell your physician about your snoring and how you feel during the day. Ask about a sleep study.
Step 2: If you have sleep apnea, ask about all treatments, including CPAP and a custom oral appliance from a dentist who provides oral appliance therapy.
Step 3: If your sleep study is normal and you have primary snoring, ask your dentist about a custom device. The guideline supports oral appliances for primary snoring.^[1]
Step 4: If a device is used, plan a follow-up. For sleep apnea, that includes a repeat sleep test with the device in place.^[1]

Finding a Dentist Who Provides Oral Appliance Therapy

Get a diagnosis first, since a dentist makes and adjusts the device on a physician's prescription and coordinates follow-up testing. Then look for a dentist who provides oral appliance therapy or has training in dental sleep medicine. Our provider directory can help you find dentists in your area. A prosthodontist is one option, since prosthodontists are trained to make custom oral devices, though not every prosthodontist provides this care. Ask any dentist how they coordinate with your physician and how they check that the device is working. Browse our list of dentists who provide oral appliance therapy, grouped by state.

Search Prosthodontists in Your Area

Frequently Asked Questions

Are over-the-counter snoring mouthpieces safe?

They are regulated medical devices, and some are FDA-cleared for reducing snoring in adults.^[3] The main risk is missing sleep apnea, and they can also cause jaw or tooth discomfort. Talk to your physician first.

Do boil-and-bite mouthpieces work for snoring?

In one randomized trial in people with snoring and mild sleep apnea, a custom device reduced snoring more than a boil-and-bite device, and success was 60 percent versus 31 percent.^[2] Some people benefit, but results were weaker and less consistent.

Can a snoring mouthpiece treat sleep apnea?

OTC snoring devices are cleared for snoring.^[3] Sleep apnea should be diagnosed by a physician, and if treated with an oral appliance, a custom adjustable appliance is preferred, with follow-up sleep testing.^[1]

How do I know if my snoring is sleep apnea?

You cannot tell by sound alone. Ask your physician about screening or a sleep study, especially if you gasp, have pauses in breathing, or feel very tired in the daytime.^[6]

What is the difference between FDA cleared and FDA approved?

Cleared usually means a device was found substantially equivalent to one already on the market for a stated use. Approved is a stricter process used for higher-risk devices. Check what use the clearance names, since it may be snoring only.^[3]^[4]

Will insurance cover a snoring mouthpiece?

OTC snoring devices are usually paid for out of pocket. A custom appliance for diagnosed sleep apnea may be covered by medical insurance. Medicare denies prefabricated devices as not reasonable and necessary.^[5]

Should I see a dentist or a doctor first?

See your physician first if you suspect sleep apnea. A dentist can then make a custom device on a physician's prescription. For simple snoring, a dentist who provides oral appliance therapy can also evaluate you.^[1]