Oral appliance therapy (OAT) is an effective treatment option for patients with mild to moderate obstructive sleep apnea (OSA). An oral appliance is a small plastic device that fits in the mouth like a sports mouth guard or orthodontic retainer. Oral appliances help prevent the collapse of the tongue and soft tissues in the back of the throat, keeping the airway open during sleep and promoting adequate air intake. Oral appliances may be used alone or in combination with other treatments for sleep-related breathing disorders, such as weight management, surgery or CPAP.

Advantages of Oral Appliance Therapy

Oral appliances are comfortable and easy to wear. Most people find that it only takes a couple of weeks to become acclimated to wearing the appliance.
Oral appliances are small and convenient making them easy to carry when traveling.
Treatment with oral appliances is reversible and non-invasive

Types of Oral Appliances

With so many different oral appliances available, selection of a specific appliance may appear somewhat overwhelming. Nearly all appliances fall into one of two categories. The diverse variety is simply a variation of a few major themes. Oral appliances can be classified by mode of action or design variation.

1)Tongue Retaining Appliances

Tongue retaining appliances hold the tongue in a forward position using a suction bulb. When the tongue is in a forward position, it serves to keep the back of the tongue from collapsing during sleep and obstructing the airway in the throat.

2)Mandibular Repositioning Appliances

Mandibular repositioning appliances reposition and maintain the lower jaw in a protruded position during sleep. The device serves to open the airway by indirectly pulling the tongue forward, stimulating activity of the muscles in the tongue and making it more rigid. The device also holds the lower jaw and other structures in a stable position to prevent the mouth from opening.