Use of Passive Myofunctional Appliances for Snoring and Mild Obstructive Sleep Apnea

September 13, 2026 updated by: University of Alberta
It is unknown whether passive myofunctional appliances can be used for the treatment of obstructive sleep apnea and snoring, nor how to select the appropriate size per individual patient. Exploring the possibility of using passive myofunctional appliances as a treatment option for patients with mild obstructive sleep apnea and/or snoring should be considered, especially as the time to fabricate and deliver custom designed dental sleep appliances can be significant (sometimes over a month). Use of passive myofunctional appliances as a transitional appliance or potentially as direct treatment for obstructive sleep apnea may significantly decrease time to treatment and also provide a less expensive treatment option for patients with obstructive sleep apnea. The purpose of this study is to determine whether passive myofunctional appliances can be used as a treatment option for patients suffering from snoring and mild obstructive sleep apnea (OSA).

Study Overview

Detailed Description

Obstructive sleep apnea is a medical condition where a person has great difficulty with breathing, or stops breathing all together, while asleep. This is a medical condition for which one of the current standard treatments is the use of a custom made dental appliance to help hold the person's airway open while asleep so that the person does not suffocate while sleeping. Current methodology within dentistry is to position the mandible somewhere approximately 70% of the person's maximum ability to position their mandible forward as the starting point (George Gauge technique), and then slowly move the bottom jaw forward as necessary. Recent literature (including that published by our team) has shown that different mandibular positioning techniques may require less protrusion, less titrations, and potentially decreased side effects compared with the traditional protrusive techniques. One of the most promising techniques involves the use of speech to determine mandibular position. The sibilant phenome technique would not require that a patient place their jaw outside of their normal functional range, and could potentially decrease the face pain/jaw joint problems commonly associated with the use of oral sleep appliances for the treatment of obstructive sleep apnea.

Myofunctional therapy has been shown to be effective at reducing sleep apnea disease indices for patients with obstructive sleep apnea. It can be thought of as targeted physiotherapy for the face, neck, and mouth muscles (including the lips, cheeks, and tongue). Due to its effectiveness and ability to reduce sleep apnea disease indices by up to 50%, it is considered an effective adjunctive treatment for obstructive sleep apnea. Recently, appliances made to aid in tongue, cheek, lip, and jaw positioning for myofunctional therapy have come onto the market. These are known as passive myofunctional appliances, and are prefabricated with varying sizes available.

It is unknown whether passive myofunctional appliances can be used for the treatment of obstructive sleep apnea and snoring, nor how to select the appropriate size per individual patient. Exploring the possibility of using passive myofunctional appliances as a treatment option for patients with mild obstructive sleep apnea and/or snoring should be considered, especially as the time to fabricate and deliver custom designed dental sleep appliances can be significant (sometimes over a month). Use of passive myofunctional appliances as a transitional appliance or potentially as direct treatment for obstructive sleep apnea may significantly decrease time to treatment and also provide a less expensive treatment option for patients with obstructive sleep apnea. The use of the sibilant phoneme technique may be used for determining the appropriate sizing for which passive myofunctional appliances may be appropriate for individual patients, or if no appropriate sizes are available for use.

Study Type

Interventional

Enrollment (Estimated)

40

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Alberta
      • Edmonton, Alberta, Canada, T5X 3N5
        • Recruiting
        • Enjoy Dental
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Patients diagnosed with mild obstructive sleep apnea or snoring without sleep apnea.
  • Patients 18 years or older
  • Patients able to provide consent to treatment and participation in the study

Exclusion Criteria:

  • Patients previously diagnosed as non-responders to oral appliance therapy for their sleep apnea
  • Patients undergoing other active therapies for their sleep apnea
  • Patients with a history of airway/sleep breathing surgical interventions
  • Participants with a history of airway/sleep breathing surgical intervention are not eligible to be a part of this study do to risk of skewing test results
  • Patients with craniofacial, syndromic, or neuromuscular disorders
  • Patients with acute medical conditions requiring immediate attention
  • Participants with an acute medical problem will be immediately referred to an appropriate physician and will not be allowed to enroll in the study until their health conditions are stable.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Passive Myofunctional Appliance
provision of passive myofunctional appliance
passive myofunctional appliance
Active Comparator: Oral Appliance Therapy
provision of mandibular advancement device
standard oral appliance

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Snoring volume
Time Frame: 3 months
Decibel volumetric recordings with SnoreLab app
3 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 23, 2022

Primary Completion (Estimated)

July 1, 2030

Study Completion (Estimated)

July 1, 2030

Study Registration Dates

First Submitted

August 8, 2022

First Submitted That Met QC Criteria

August 9, 2022

First Posted (Actual)

August 11, 2022

Study Record Updates

Last Update Posted (Actual)

September 16, 2026

Last Update Submitted That Met QC Criteria

September 13, 2026

Last Verified

September 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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