How Do Oral Appliances Work?
Burbank, CA
If you have been told you have obstructive sleep apnea (OSA) or chronic snoring, you may have already encountered the term "oral appliance therapy." For many patients at Toomin & Bieber Aesthetic Comprehensive Dentistry, they find this treatment offers a quieter, more comfortable alternative to continuous positive airway pressure (CPAP) therapy. But how does a small device worn in the mouth actually solve a problem that happens while you sleep? Learning the mechanics can help you feel confident about the treatment and what to expect from it. What Happens During Obstructive Sleep Apnea?Obstructive sleep apnea occurs when the soft tissues at the back of the throat collapse inward during sleep, partially or fully blocking the airway. When the airway narrows, airflow becomes turbulent, which causes snoring. When it closes completely, breathing stops, sometimes dozens or hundreds of times per night. Each interruption pulls the brain out of deep sleep to signal the body to reopen the airway, even if the person never fully wakes up.The root cause is anatomical. The tongue, soft palate, and surrounding muscles relax significantly during sleep, and for some people, that relaxation allows the airway to close. Oral appliances address this by repositioning the jaw, which in turn changes the position of the tongue and soft tissues. The Mechanics of Jaw RepositioningMost oral appliances used to treat sleep apnea are mandibular advancement devices (MADs). These are custom-fit appliances that fit over both the upper and lower teeth, holding the lower jaw (mandible) in a slightly forward position throughout the night.This forward positioning does several things simultaneously. When the mandible moves forward, the tongue, which is attached to the jaw, also moves forward and away from the back of the throat. The soft palate tightens slightly, reducing the floppiness that causes snoring. The overall diameter of the airway increases, allowing air to pass more freely and reducing or eliminating the collapse that causes apnea events.The amount of forward advancement is adjustable in most custom devices. Your provider may start at a moderate position and gradually increase advancement based on how your symptoms respond, a process called titration. Custom-Fit vs. Over-the-Counter DevicesIt is worth understanding the difference between a properly fabricated oral appliance and the generic options available without a prescription. Over-the-counter devices are typically made from a soft thermoplastic material that the user molds at home using a boil-and-bite method. While they are inexpensive, they offer limited control over jaw position, minimal retention, and no adjustability. Custom oral appliances are fabricated using detailed impressions or digital scans of your teeth and bite. A dental lab constructs the device to fit your mouth precisely, which improves both comfort and effectiveness. The fit also ensures the appliance stays in position throughout the night without dislodging. For patients with diagnosed obstructive sleep apnea, a custom-fit device prescribed and monitored by a qualified dentist is the appropriate choice. Who Is a Good Candidate for Oral Appliance Therapy?Oral appliance therapy is generally recommended for patients with mild to moderate obstructive sleep apnea, or for patients with severe sleep apnea who are unable to tolerate CPAP. It is also a primary treatment option for primary snoring, which is snoring not associated with apnea. Candidates typically need:
Patients who grind their teeth, a condition called bruxism, may also benefit from certain oral appliance designs, though the approach requires careful evaluation. What to Expect When You Start TreatmentMost patients notice improvement in snoring and sleep quality within the first few nights of wearing the appliance. Some experience temporary soreness of the jaw, teeth, or muscles as the tissues adjust to the new position, particularly in the early weeks of treatment. Morning jaw exercises and occlusal guides provided with some devices help the bite return to its normal resting position each day. This reduces any lingering jaw tension and prevents long-term bite changes from developing. A follow-up sleep study is typically recommended after the device has been titrated to its therapeutic position. This confirms whether the appliance is adequately controlling apnea events and allows for further adjustment if needed. Ongoing annual or biannual visits with your dental provider help ensure the device continues to fit properly as your oral anatomy changes over time. How Long Does an Oral Appliance Last?A well-maintained custom oral appliance typically lasts three to five years, though this varies based on the materials used and factors like nighttime teeth grinding. Regular cleaning and proper storage extend the lifespan of the device. Your dental provider will monitor the appliance at each visit for signs of wear and let you know when a replacement is appropriate. Taking the Next Step
If you have been diagnosed with obstructive sleep apnea or struggle with chronic snoring, oral appliance therapy may be worth exploring. Toomin & Bieber Aesthetic Comprehensive Dentistry can evaluate whether you are a candidate and walk you through what the process involves from the initial fitting to follow-up care. Call (818) 748-9998 to schedule a consultation. |
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