For Practitioners

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Myosa® - sleep appliance systems offer the dental and medical professions the means to provide SDB (Sleep Disordered Breathing) sufferers with a comfortable and cost effective solution that can enhance their quality of life as well as the lives of our children.

The Myosa® sleep appliance system, which provides advanced options for patients seeking SDB treatment solutions, has the correction of poor breathing habits at its core. Rather than just focus on alleviating the symptoms of Sleep Disordered Breathing, the philosophy behind the Myosa® appliance range is aimed at treating the upper airway and neuromuscular dysfunction that are the fundamental causes of Sleep Disordered Breathing.

Although the causes of Sleep Disordered Breathing are varied and can differ between individuals, because MRC has been focused on developing myofunctional sleep appliances for more than 25 years, there is a full range of treatment options readily available.


The Myosa® range includes sleep appliances suitable for a wide spectrum of patients and includes appliances to suit patients from as young as two-years-old through to adults as well as speciality appliances targeted at bruxing and jaw joint (TMJ) disorders, which are associated with Sleep Disordered Breathing. The Myosa® appliances are generally worn for one hour per day plus overnight while sleeping, under professional supervision.

myOSA appliances range


IN recent decades the medical and dental professions have become more aware of Sleep Disordered Breathing (SDB) acting as major contributors to a range of health problems.

In addition to having a negative impact on mood, energy levels, ability to regulate stress, behavioural problems and emotional well being, severe sleep disorders, such as obstructive sleep apnoea, have been associated with the causes of life shortening events such as heart disease or stroke.

SDB characteristically occurs when the flow of air through the nose or mouth is obstructed during sleep. 

While this airflow obstruction is typically caused by relaxation and poor muscle tone around the throat and jaws, there are many underlying causes of SDB.

The most common of these are chronic mouth breathing, poor diet, obesity and poor development of the jaws. Additionally, orthodontics with extractions can exacerbate breathing issues.

Mouth breathing is a major contributor to Sleep Disordered Breathing

Mouth breathing is a major contributor to Sleep Disordered Breathing


Traditionally treatment for SDB, particularly obstructive sleep apnoea has involved the use of a Continuous Air Pressure (CPAP) device. However, the inconvenience caused by the bulky CPAP machine and discomfort caused by the mask often discourages patients from using their machine. As a result, treatment with intra-oral appliances is now considered to be the most convenient way to alleviate SDB.

Normal nose breathing vs mouth breathing

Mouth breathing is abnormal and is one of the causes of Sleep Disordered Breathing (SDB) problems. If a child breathes through their mouth the jaws will not develop forwards correctly. Adults who have SDB will usually have underdeveloped jaws, which cause the tongue and lower jaw to restrict the airway. Therefore, it is important to re-learn to breathe correctly, through the nose, at all times so the lower jaw and tongue is held forward and the airway is kept open.

Mouth Breathing V Nose Breathing

Myosa® Sleep Correction

The Myosa® range of intra-oral appliances are designed to provide practitioners with an effective means of treating their patient's Sleep Disordered Breathing (SDB), TMJ disorders and teeth grinding. Rather than just focus on alleviating the symptoms of SDB the Myosa® appliance range aims to treat poor myofunctional habits (oral habits) as well as the upper airway and neuromuscular dysfunction, which can cause SDB.

Treatment with oral appliances is now considered to be the most convenient way to alleviate Sleep Disordered Breathing.

The Myosa® appliance range functions by posturing the lower jaw slightly forward, correcting tongue position and opening the bite, which then opens the airway and regulates breathing. Additionally, the Myosa® system is focused on encouraging people to play an active role in their own treatment.


Myosa® Activities

Myosa® activities, which are completed daily and designed to help patients overcome the poor myofunctional habits as well as the upper airway and neuromuscular dysfunction causing their SDB, play an integral role in this.

This activities program, which also focuses on diet and nutrition, has been designed to enhance the effectiveness of the Myosa® appliance and provide superior treatment outcomes directed towards correcting the causes as well as symptoms of Sleep Disordered Breathing.