Patient FAQs

  • What is the difference between the Oventus O2Vent™ T and other oral devices?

    Like all oral appliances that bring the jaw forward, the O2Vent™ T stabilizes the jaw position and brings the tongue forward to reduce airway collapse. In addition, the unique airway allows for breathing through the device to bypass obstruction in the nose which can contribute to snoring and obstructive sleep apnea.

    • Airway
      The O2Vent™ T has an airway about the size of a healthy human nose incorporated into it. The air enters the airway and is delivered to the back of the oral cavity so patients can breathe through the device while maintaining an oral seal.
    • Small and streamlined
      The O2Vent™ T is 3D printed in medical grade titanium which facilitates its lightweight, thin wall and complex hollow structure incorporating its unique airway design. This allows us to build an airway into a more streamlined device that is less than 5mm (0.2 inch) thick as it passes between the teeth – it’s about the size of a standard mouthguard.
    • Lightweight
      The uniquely-designed mouthguard weighs approximately 35 grams (just over 1 oz.) dependent on customized design.
    • Comfort
      The O2Vent™ T is lined with a medical grade, polymer liner to maximize patient comfort. The design of this customized device comfortably fits around your teeth, and provides ample space to accommodate the tongue.
  • What proof do you have that the Oventus device works?

    Oral or mandibular advancement devices - like the O2Vent™ are emerging as an accepted alternative treatment for mild to moderate obstructive sleep apnea, with recent studies showing similar long term health outcomes1. The recent Oventus clinical trial showed that 100 per cent of patients experienced a significant reduction in snoring and an improvement in AHI with 82 per cent of patients eliminating snoring completely and 76 per cent of patients reducing their AHI by more than half2. Oventus are pleased to announce the first peer reviewed clinical data was published at the AADSM 25th Anniversary Meeting in Denver in June 2016.

    The early design of the O2Vent™ has been used for some time in Australian private clinical practice. Developed in 2013, Oventus conducted a pilot study on the design with promising results. After further refinement and in particular using 3D printing technology, the device has been improved to be more comfortable with a more compact device

  • What is involved in getting an O2Vent™?

    To obtain an O2Vent™ T the process is relatively simple but takes around four weeks to manufacture and deliver your custom-made mouthguard. Register online for free at and Oventus will contact you to discuss your sleep history and if suitable, direct you to an Oventus Trained Clinician who will review the information and determine the best course of treatment for your condition. If necessary, you may need a diagnostic sleep study. If your clinician recommends an O2Vent™ T, impressions of your teeth and a bite registration will be taken and your device can be manufactured from these records.

  • What is the cost?

    The O2Vent™ T is a custom made medical device, designed specifically for each patient. It is now generally accepted that custom fabricated oral appliances are better tolerated, remain in place during sleep and are more efficacious compared to cheaper off the shelf oral appliances.

    The O2Vent™ T device is fitted and delivered under the supervision of a dentist, and is available from an Oventus Trained Clinician. Total treatment cost is approximately $3000 including device and related dental consults and procedures. Final costs should be discussed with your Oventus Trained Clinician.

  • Is this procedure and device covered by my medical insurance?

    Yes, however you will need to discuss this with your clinician as policies and inclusions differ for individuals.

  • What are the risks?

    There are very few risks with using an oral device for sleep therapy and that includes the O2Vent™ T. The O2Vent™ T is completely removable so if you have any concerns, you can simply remove it and contact your Oventus Trained Clinician.

  • How do I know if I am a candidate?

    Whether you snore, or have mild to moderate obstructive sleep apnea (OSA), you are likely to benefit from the O2Vent™ T. The O2Vent™ T is particularly helpful for people with nasal obstruction, and additionally patients with severe OSA who cannot tolerate CPAP. You can register online for free at and an Oventus consultant will call you to discuss your sleep history to find out if you are a candidate. This will be confirmed by your Oventus Trained Clinician.

  • Do I need to do a sleep study?

    Sleep physicians often recommend a sleep study conducted within the last 5 years before an oral appliance is prescribed (to determine the diagnosis), and after the oral appliance is used to determine if it is effective.

  • What outcome can I expect?

    With any oral appliance on the market, studies show that more than 75 per cent of people with obstructive sleep apnea improve their sleep significantly1. About 54 per cent improve to measure an AHI level of less than 10. Of those who do not improve to less than 10, 21 per cent of these will improve their AHI level by at least half1. More than 1500 people are now using the O2Vent™. The Oventus clinical trial reported an average usage of the device six nights per week and an average of seven hours per night, resulting in a compliance of 82.8%2. This study also showed that 100 per cent of patients experienced a significant reduction in snoring and an improvement in AHI with 82 per cent of patients eliminating snoring completely and 76 per cent of patients reducing their AHI by more than half2.

  • How do I know it will work for me?

    Many people already using the O2Vent™ T are reporting exceptional results. Before recommending an O2Vent™ T to anyone, an Oventus Trained Clinician will thoroughly assess every patient's situation to ensure suitability.

  • Is it suitable if the patient has dentures?

    Potentially yes. However, each patient will need to have an individual assessment by their clinician to determine suitability for the O2Vent™ T.

  • Is it suitable for a mouth breather or patients with nasal congestion?

    Yes. The O2Vent™ T does not prevent you from still breathing through the nose, but provides an additional airway within the device to create a low resistance airway through device as well. Although counterintuitive, the O2Vent™ T actually prevents oral breathing. Recent Oventus clinical trial data showed that compliance with treatment did not appear to be reduced by the presence of nasal congestion2.

  • Does it hold the mouth shut like other oral devices?

    Yes. The O2Vent™ T keeps the mouth shut and maintains an oral seal. However, unlike other oral appliances it provides an auxiliary airway to breathe through. The auxiliary airway is the same size as a healthy human nose, as such providing an additional airway to breathe through while keeping your mouth closed.

  • How does the Oventus O2Vent™ Device prevent dry mouth syndrome?

    The airway in the O2Vent™ T is fully enclosed from the intake at the front of the mouth to the pharynx at the back of the mouth so the air doesn’t come into contact with the mouth as the patient breathes through it. There is always an oral seal. It is not possible for the patient to mouth breathe with the device in place. It does however provide a second “nose” for the patient to breathe through if they cannot get enough air due to nasal congestion or obstruction. It converts mouth breathers to “pseudo” nose breathers.

  • Does the Oventus device emit any noise when you exhale?

    The O2Vent™ T makes a slight noise when the patient breathes through it. Patients and their partners find it far quieter than snoring or alternative breathing devices.

  • Does it work if you have weak throat muscles?

    The O2Vent™ T bypasses the nose and soft palate and prevents the tongue obstructing so weak throat muscles are not an issue when breathing in and out using the O2Vent™ T. If the patient suffers from lateral collapse of the pharyngeal areas, the appliance will help prevent collapse by allowing air to enter that region unobstructed and with good flow. However, the O2Vent™ T does not pump air into these areas. In cases where lateral collapse is severe, patients are advised to consult their healthcare professional. Positive airway pressure machines would be a better option in these cases.

  • Does it make a person gag?

    The O2Vent™ T sits between the teeth and the cheeks. It does not extend over the palate or the tongue so we have not had any issues with patients gagging from it but please discuss this with your clinician if you have specific concerns.

  • What is the regulatory status of the O2Vent™ devices?

    The O2Vent™ devices have received FDA 510k clearance for sale in the USA
    K161832 - O2Vent™ T
    K160234 - O2Vent™ MONO

  • Where do I go to get an O2Vent™ T?

    The O2Vent™ T is available through Oventus Trained Clinicians – dentists who have undergone the training required to assess your suitability to O2Vent™ T treatment, and take bite registration and impressions of the top and bottom teeth. We are accrediting clinicians frequently and adding to our existing network. Currently Clinicians are located in the following locations, but please contact us to see where the most convenient site is for your location:

    • San Francisco
    • San Jose
    • Los Angeles
    • Leawood, KS
    • Boston, MS
    • Wilmington, DE
  • What if I live in a regional or remote area?

    Oventus is increasing its network of Oventus Trained Clinicians across the USA. But if you live in an area not serviced by an Oventus Trained Clinician we will inform you as soon as we have services in your area.

  • How do I clean the O2Vent™ T?

    By following the INSTRUCTIONS FOR USE that is provided with the Oventus kit, the O2Vent™ T should remain in good condition. After each use your device, rinse it in lukewarm water. Clean your device using a soft clean toothbrush (not the same one you use to clean your teeth with, as toothpaste can damage your device). Shake as much water off your device as possible and dry with a clean tissue or towel and store in your storage box. Twice a week, clean your device more thoroughly using the sonic cleaner and Retainer Brite cleaning tablet provided with your device. Half fill the tub with water and separate the two parts of the device. Place the cleaning tablet and the two parts of the device in the tub ensuring it is completely submerged. Turn the cleaner on for 15 minutes. Rinse both the device and the tub well in warm water and dry as per your daily routine.

  • How can I find out more information?

    If you are interested in finding out more information about the O2Vent™ T register online for free at to receive a call to discuss, or call us on 844-780-5957.


  • Sutherland, et. al, Oral Appliance Treatment for Obstructive Sleep Apnea: An Update. Journal of Clinical Sleep Medicine. February 15 2014.
  • Oventus Clinical Trial Report ANZCTR Registration number: ACTRN12615000028505.