SLEEP APNEA RESOURCES
Oral Appliance Therapy
What Is Oral Appliance Therapy?
Oral appliance therapy is a clinically proven treatment for obstructive sleep apnea and chronic snoring. It uses a custom-fitted dental device — similar in size and shape to a sports mouthguard or orthodontic retainer — to hold your lower jaw and tongue in a forward position while you sleep. This gentle repositioning prevents the soft tissues in the back of the throat from collapsing and blocking your airway, allowing you to breathe freely throughout the night.
At Glendale Dental Wellness, Dr. Ivan Chan provides custom oral appliances as a comfortable, non-invasive alternative to CPAP machines. Unlike generic over-the-counter snoring devices, a professionally fabricated oral appliance is designed from precise impressions or digital scans of your teeth, ensuring an accurate fit, even pressure distribution, and the ability to make fine adjustments over time.
The American Academy of Sleep Medicine recommends oral appliance therapy as a first-line treatment for mild to moderate obstructive sleep apnea and as an alternative for patients with severe sleep apnea who are unable to tolerate CPAP. If you have been diagnosed with sleep apnea or suspect you may have it, oral appliance therapy may be the solution that finally lets you sleep soundly.
How Oral Appliances Work
During sleep, the muscles that support the soft palate, tongue, and surrounding tissues naturally relax. In people with obstructive sleep apnea, this relaxation allows the airway to narrow or close entirely, causing repeated pauses in breathing that can occur dozens or even hundreds of times per night.
An oral appliance addresses this through mandibular advancement — gently holding the lower jaw a few millimeters forward of its resting position. This forward shift pulls the tongue base and connected soft tissues away from the back of the throat, physically widening the airway. The degree of advancement is precisely calibrated by Dr. Chan using a titration mechanism that allows sub-millimeter adjustments until the ideal balance of airway opening and comfort is reached.
Types of Oral Appliances
There are two primary categories of oral appliances used in sleep medicine:
- Mandibular Advancement Devices (MADs) — the most widely prescribed type, consisting of upper and lower trays connected by a mechanism that holds the lower jaw forward while allowing some lateral movement
- Tongue Retaining Devices (TRDs) — use a soft suction bulb to hold the tongue forward, making them an option for patients with fewer teeth, dentures, or TMJ discomfort that makes mandibular advancement impractical
During your consultation, Dr. Chan will evaluate your oral anatomy, tooth and jaw health, tongue size, and sleep study results to recommend the type of appliance best suited to your needs.
The Fitting Process
Getting a custom oral appliance involves several straightforward steps. Dr. Chan guides you through each stage to ensure optimal comfort and effectiveness.
Consultation & Evaluation
Dr. Chan reviews your sleep study results, examines your teeth, gums, jaw joints, and airway, and discusses your symptoms and treatment goals.
Digital Scanning & Impressions
Precise records of your upper and lower teeth are captured using digital intraoral scans or traditional impressions. A bite registration records how your jaws relate to each other.
Appliance Fabrication
A specialized dental laboratory manufactures your custom oral appliance using medical-grade acrylic and metal components. Fabrication typically takes two to three weeks.
Fitting Appointment
Dr. Chan verifies the fit, ensures it seats properly on your teeth, sets the initial advancement position, and teaches you how to insert, remove, and care for the device.
Titration Period
Over several weeks, you return for short appointments where Dr. Chan gradually advances the lower jaw position in sub-millimeter increments based on your symptom response and comfort.
Follow-Up & Monitoring
A follow-up sleep study confirms effectiveness. Dr. Chan checks your appliance fit, tooth alignment, and jaw joint health at regular dental checkup intervals.
Oral Appliance vs. CPAP: How They Compare
CPAP requires a mask, hose, and air compressor. An oral appliance is a small, self-contained device with no mask or machine — most patients find it far easier to tolerate.
Long-term CPAP compliance hovers around 50%. Oral appliance compliance tends to be higher because the device is simpler and more comfortable to wear every night.
CPAP is more effective for severe cases, but oral appliances are highly effective for mild to moderate sleep apnea. Higher compliance often leads to comparable real-world outcomes.
Oral appliances fit in a pocket-sized case with no power supply needed. For frequent travelers, this is a major practical advantage over bulky CPAP equipment.
CPAP machines produce a constant hum from the air compressor. Oral appliances are completely silent — a benefit for both you and your sleep partner.
CPAP requires cleaning the mask, tubing, water chamber, and filter replacements. An oral appliance needs only daily brushing and periodic soaking in a cleaning solution.
Frequently Asked Questions About Oral Appliance Therapy
How is a custom oral appliance different from an over-the-counter snoring device?
Over-the-counter boil-and-bite devices use a generic fit that cannot be precisely calibrated to your jaw anatomy. Custom oral appliances are fabricated from digital scans or impressions of your teeth, allowing an exact fit that distributes force evenly across the teeth and jaw joint. Custom devices also feature adjustable advancement mechanisms so Dr. Chan can fine-tune the position of your lower jaw in small increments until the optimal airway opening is achieved. OTC devices lack this adjustability, are generally bulkier, and have not undergone the same clinical validation for treating diagnosed sleep apnea.
Are oral appliances comfortable to sleep with?
Most patients adapt to a custom oral appliance within one to two weeks. Because the device is made to the exact dimensions of your teeth and gums, it fits snugly without feeling bulky or loose. Some patients experience mild jaw soreness or tooth tenderness during the initial adjustment period, but these sensations typically resolve quickly. Dr. Chan schedules follow-up appointments to make incremental adjustments that improve both comfort and effectiveness. The majority of patients report that wearing an oral appliance is far more comfortable than sleeping with a CPAP mask.
Can an oral appliance treat severe sleep apnea?
Oral appliance therapy is most effective for mild to moderate obstructive sleep apnea. For severe cases, CPAP therapy is generally considered the first-line treatment because it delivers continuous positive airway pressure that keeps even a significantly compromised airway open. However, some patients with severe sleep apnea who cannot tolerate CPAP may benefit from an oral appliance as an alternative, sometimes in combination with positional therapy or weight management. Dr. Chan works with your sleep physician to determine whether an oral appliance is appropriate for your specific severity level.
How long does a custom oral appliance last?
With proper care, a well-made custom oral appliance typically lasts three to five years. The lifespan depends on factors such as how strongly you clench or grind your teeth at night, how consistently you clean and store the device, and the specific materials used in fabrication. Dr. Chan checks the condition of your appliance at each follow-up visit and will recommend replacement when the device shows signs of significant wear, looseness, or reduced effectiveness.
Is an oral appliance easy to travel with?
Yes, portability is one of the primary advantages of oral appliance therapy. The device fits inside a small protective case that can slip into a carry-on bag, purse, or even a coat pocket. There are no cords, hoses, water chambers, or power sources to pack. You do not need to worry about finding an electrical outlet or dealing with voltage converters when traveling internationally. For patients who travel frequently for work or leisure, the convenience of an oral appliance is often a deciding factor.
Can an oral appliance help with TMJ problems as well as sleep apnea?
The relationship between oral appliance therapy and TMJ disorders is nuanced. In some patients, repositioning the lower jaw slightly forward can relieve pressure on the temporomandibular joint and reduce TMJ-related pain. In other patients, wearing a mandibular advancement device may temporarily increase jaw joint awareness or soreness. Dr. Chan evaluates your TMJ health before prescribing an oral appliance and monitors your joint function throughout treatment. If you have existing TMJ concerns, be sure to mention them during your consultation so the appliance design and advancement level can be tailored accordingly. Learn more on our TMJ treatment page.
