Mandibular Advancement Questions

What is Mandibular Advancement?

This term refers to the forward movement of the lower jaw (mandible). The SleepPro® and Noiselezz® are Mandibular Advancement Devices (MAD’s). When worn correctly, a Mandibular Advancement Device holds the mandible (lower Jaw) slightly advanced from its normal position. This opens the airway and keeps the tongue from touching the soft tissue at the back of the throat. Also, while the tongue is being held forward, it becomes more stiff. This combination of events stops the snoring noise and helps with Sleep Apnea.

What treatment is the best for me?

There are very many treatments out there and we think that some of them will work for some people some of the time. Of all treatments available, we have found that the SleepPro® and Noiselezz® are the most effective, painless, economical, simple, easy to use, comfortable, and transportable.

Which mandibular advancement appliance is best for me?

Please read this entire FAQ. It contains good ideas collected from many conversations with snoring sufferers. The SleepPro® and Noiselezz® are the best appliances considering effectiveness, price, comfort, availability, portability and ease-of-use. Chances are better than 92% that one or both of these appliances will treat your snoring. We sell them both because there are some very interesting and viable differences, for example – the SleepPro® is possibly more suited to a closed-mouth sleeper and the Noiselezz® for an open-mouthed sleeper.

The SleepPro® is custom-fitted while the Noiselezz® is not. The Noiselezz® is a hinged two-piece unit, the SleepPro® is one piece. You are the only one that can decide which is best for you. Read on for more detail.

Which mandibular advancement appliance is best for closed-mouthed and open-mouthed sleepers?

The Noiselezz® appliance is folded in half to fit into the mouth over the top and bottom teeth. The fold is accomplished with two specially formulated plastic hinges that act as springs. The “springs” cause the Noiselezz® to unfold as the mouth opens staying on the teeth with the mandible advanced. At the same time, these “springs” then encourage the mouth to open.

The SleepPro® appliances, on the other hand, are basically one-piece appliances and if the mouth opens far enough, the patient could become disengaged from the appliance, top or bottom (usually the bottom), allowing the mandible to fall back again.

Of course, this “open or closed” is a matter of degree. We have no idea how “open” anyone’s mouth is going to be. That is up to you, the customer, to determine.

Can these appliances be worn if I have dentures?

Yes with Noiselezz®, as fitting is not usually required. Yes with SleepPro® – however, you must follow the special fitting instructions enclosed with the appliance. Your dentures must be a tight fit and of course you must wear the dentures at night with either appliance. You must follow the hints in the letter accompanying your appliance. Fitting with dentures carries a risk which is yours alone.

Can these appliances fit a person with severe overbite or underbite?

The Noiselezz®, as the advancement is preset, may not be suitable for those with a severe overbite or underbite. The SleepPro® has a small adjustment choice.

Who should not use Mandibular Advancement Devices?

1) Youths whose teeth have not settled as yet, and 2) Anyone susceptible to “TMJ” (Templar Mandibular Joint disorder). Any MAD (Mandibular Advancement Device) will advance the mandible (move the jaw forward slightly), and in some people, this may put a strain on the Mandible Joint.

What are the indications, contraindications, and possible side effects of mandibular advancement devices?

Indications (conditions that are treated by a mandibular advancement device):

  • Primary snoring
  • Mild to moderate obstructive sleep apnea in adults
  • CPAP-intolerance and non-existing surgical indication
  • Occasional use by obstructive sleep apnea patients, for convenience when travelling, instead of CPAP (with the advice of their medical professional)
The use of a mandibular advancement device will result in a more comfortable, healthy sleep for you and your family.

Contraindications (If you have any of the following conditions, see a medical professional before using this appliance)

  • Mandibular joint disorder
  • Larger tooth gaps
  • Unstable dental crowns
  • Tooth decay
  • Parodontosis
  • Disorders like epilepsy and debility
  • Strong gulping or gag reflex
  • Central sleep apnea
  • Limited mandibular advancement

Patients with sleep apnea should be able to extend their lower jaw forward at least 7 mm. If the patient’s dental condition appears uncertain and in case of occlusional abnormalities (e.g. crossbite, overbite, underbite) a dental checkup is strongly recommended before treatment. If the device is used for the long term, regular visits with a dentist are required.

Possible side effects:

  • Excess production of saliva which normalizes with adaptation to the appliance.
  • Morning discomfort by temporary pain from TMJ or teeth, which decreases with adaptation
  • Mouth dryness
  • Short-time bite changes which will disappear normally within 30 minutes after removal of the device
  • During the first few days it may happen that the appliance cannot be kept in the mouth for the whole night. This is normal. The adaptation period may take a week.
In case of any persisting or severe side effects, stop using the appliance immediately and consult your medical professional.

Does the Noiselezz® usually require fitting?

No, not for a reasonably normal shaped mouth. It can be easily adjusted if there is any discomfort. The advancement is preset and the appliance is a two piece unit, consisting of two hollow opposed trays. These are joined by unique small special plastic hinges which act as springs, allowing the appliance to follow the mouth as it opens. Most snorers sleep with theirs mouth open. The Noiselezz may not be suitable for those with a severe overbite or underbite.

Why does the SleepPro® require fitting?

The SleepPro® has trays filled with a special copolymer. This filler becomes moldable at a certain temperature, while the supporting trays do not soften. This ability allows a custom fit to the individual’s teeth (both upper and lower) and some choice in the degree of advancement. SleepPro® is a one piece appliance with a unique front opening for breathing. It works well for unusual shaped tooth structures and/or closed-mouth sleepers.

Are the Noiselezz® and SleepPro® available in different sizes?

No, both appliances are available in a “one-size-fits-all” format. Oral appliances can only economically be manufactured in one size — the size that fits the largest segment of the population. There is a chance they may not fit a larger or smaller person. Obviously, you have a small risk when ordering either of these appliances. We are unable to test for size, but our standard 100% warranty applies when the appliance is returned.

Does ‘one-size-fits-all’ mean the appliance will fit everyone?

Our SleepPro® and Noiselezz® appliances are made to fit the largest segment of human population. This includes people with a normal bite, a large bite, or a small bite. However, if you have an extra-large or extra-small bite, no standard appliance may fit you. For example, if you have ever needed an impression taken of your teeth, and your dentist has to get a seldom-used tray to take the impression, then it is likely that no “one-size-fits-all” appliance will fit your tooth shape. Obviously, you have a small risk when ordering these appliances. We are unable to test for size, but our standard 100% warranty applies when the appliance is returned.

Does basic mouth/teeth shape indicate possible fitting problems?

Yes. The most difficult types to fit are the severe-overbite and the severe-underbite shaped mouths. Also, a very small or very large person may have trouble with fitting. In these cases, a dental professional may be able to trim off some material to provide a good fit.

Should a medical practitioner be consulted before wearing a mandibular advancement device?

Most certainly we recommend this action. In the first place, you must have a healthy tooth structure in order to wear any mandibular advancement appliance. It is recommended that you consult your dental practitioner for this advice and for fitting if and when required. Fitting is always required with the SleepPro®. Detailed use and Download Fitting Instructions are included with both appliances. Fitting is not difficult but it is your responsibility.

If I call your toll-free number, can you pick one device for me?

Possibly but probably not, particularly if you have not read all of the information on the website. Snoring and sleep apnea are serious health hazards, and you do need to invest some time to obtain the treatment and appliance that is best for you. We provide specific, detailed information on the No Snore Zone site to help you make this important decision. It is impossible for us to explain everything on the telephone. In other words, please read the entire site, and if you are still confused, then call us. You know yourself best, so only you will know what is best for you. If you make an error on your first choice, we provide a 100% money-back guarantee so that you can economically try again. (Note that we were the first seller to offer this guarantee and we have years of experience in this business.)

Should I try mandibular advancement with braces or retainers?

Mandibular advancement devices use some or all of the teeth to hold the jaw forward, and support it in a position that keeps the airway open and the tongue off the soft tissues at the back of the throat. Knowing this, we think it is usually not advisable for people that use braces or retainers. By all means ask your dentist.

Which device of yours is best?

Simply put, there is no best. We believe we have the best appliance selection available anywhere. Each appliance is different in some way or has some advantage. After reading our detailed information, you should be able to choose which is best for you. Only you can make this decision. Please read the entire site. We try to provide the most comprehensive information to assist you whether you buy from us or not. Hopefully, you will find something on our site that will help you with your problem, or your partner’s, uncle’s, brother’s, etc.

Which is the simplest device?

The Noiselezz.

Which appliance will contact the most teeth?

The SleepPro® has the most contact. Remember each of these appliances has other important qualities that differentiate one from the other, so it is advisable to read all the information. Contact is not the only important feature.

How do your appliances, SleepPro® and Noiselezz® differ from sports mouthguards?

The sole purpose of a sports mouthguard is to guard the teeth. The SleepPro® and Noiselezz® are products of extensive scientific research and testing…precisely designed to advance the lower jaw (mandible) in a specific manner to relieve snoring. These appliances also treat bruxing (tooth grinding) and are to be worn only while sleeping.

What is your warranty?


Effective September 24, 2012, we are happy to refund per the following within 45 days, less our original shipping cost, subject to the following limitations:

  • The above 100% warranty applies to the SleepPro 1, Noiselezz and Noiselezz II products only
  • The SleepPro SFA product carries a 50% – 45 day warranty
  • The SleepPro 2 Custom is a custom-manufactured (for you only) appliance, purchased after due thought and testing. No warranty is stated or implied for the SleepPro 2 Custom appliance. See our SleepPro 2 Custom policy statement

Combination discount will be deducted from refund where applicable.

Whether you actually use the appliance or not, once it has left our hands, it is considered “used”. We cannot, under any circumstances, resell any returned appliances. They are examined, documented and then immediately destroyed.

The appliance must be shipped according to our instructions (below).
Resale accounts are not eligible for this risk warranty or the repeat order discount

Please read and follow exactly. Please contact us first, permission is not required to return however our experienced staff may be able to assist you. Please ship via post, and only post (Standard surface or air mail, in an envelope is the most economical).

  • Mark the package “Canadian Goods Returning”, and “No Commercial Value.”
  • Your return address must be the same as the original “ship to” address, clearly marked on the outside of your return package. No protective, special packaging required.
  • Include a note of explanation and your name and address in full.
  • Please include an invoice number, there is no reason for special packaging, the contents being returned truly have no value and require no protection. No value on any customs form required please.
  • As well as the above comments. Postage should be less than $1.75 depending upon your location, if in North America that is.
  • Shipping by any other method will automatically be returned to the sender, at the sender’s cost.Therapy Control Products Inc.
    Box 70058, Creekside RPO
    Airdrie, AB Canada T4B 2V8

How long does it take to adjust to an oral appliance?

It differs with each person but is usually 3 – 5 nights. Of course some people pop it in their mouth and experience a full, restful, healthy night’s sleep immediately. And so does the rest of the household.

Are there hints in adjusting supplied with the appliance?

Yes, and it is not difficult. You do need to be motivated, however.

What is the life of the appliance?

This largely depends upon you. You should take care of the appliance as outlined in the instructions. If you are a tooth grinder (bruxer), the appliance will wear out more quickly. The worst case is about 4 months, and this would be very unusual. They can also last 18 months. So on average, your appliance will last 9 – 12 months. Still, this is only pennies per night, resulting in healthy, restful sleep for the whole household.

How do I keep my appliance clean and sanitary?

First, dilute 1/2 teaspoon of DentureBrite in 1 cup of tepid (slightly warmed) water. Then, stir solution thoroughly and soak appliance for 20 minutes. Rinse thoroughly before using. For stubborn stains or calculus build-up, soak appliance for a longer period.