In: Sleep Apnea & Snoring Relief
CPAP and oral appliance therapy are the two most-used sleep apnea treatments. Each has distinct strengths - and your choice should fit your apnea severity, lifestyle, and tolerance.
How CPAP works
A CPAP (continuous positive airway pressure) machine is the gold standard for treating sleep apnea. It uses a small bedside compressor and a mask (nose, full-face, or nasal pillows) to deliver a steady stream of pressurized air, which keeps your airway open all night. Effectiveness is excellent - when used consistently, CPAP eliminates apnea events for the great majority of users and dramatically improves daytime energy, blood pressure, and cardiovascular risk.
The trade-off: about 25-50% of patients struggle with adherence. Mask discomfort, claustrophobia, dry sinuses, and partner disruption are common reasons.
How oral appliance therapy works
An oral appliance is a custom-made device that looks like an athletic mouthguard. It fits over your teeth and gently holds your lower jaw forward (mandibular advancement) during sleep. By advancing the jaw, the tongue and soft tissues are pulled forward off the airway, keeping it open without forced air pressure.
Most patients adapt within 2-4 weeks. The appliance is small, silent, and travels in a small case - appealing for patients who couldn't tolerate CPAP or who travel often.
Side-by-side comparison
Effectiveness: - CPAP: Eliminates apnea events for ~95% of users when used consistently. - Oral appliance: Reduces apnea events significantly for 60-80% of users; complete elimination less common.
Adherence: - CPAP: 30-50% of users discontinue or use inconsistently long-term. - Oral appliance: 75-90% adherence at 1 year - main reason oral appliances often produce better real-world outcomes for the right patient.
Comfort: - CPAP: Mask, hose, machine noise; harder for side sleepers. - Oral appliance: Some jaw soreness in first few weeks; easy to sleep in any position.
Travel and lifestyle: - CPAP: Bulky; needs power; airport scrutiny. - Oral appliance: Pocket-sized; no power needed.
Cost: - CPAP: $500-$1,500 (most insurance covers). - Oral appliance: $1,500-$3,000 (often covered with a sleep apnea diagnosis).
Who should choose which
CPAP is the right first choice for: - Severe sleep apnea (AHI > 30) - Significant cardiovascular disease where maximum apnea elimination matters - Patients comfortable with mask-based therapy
Oral appliance is the right choice for: - Mild-to-moderate sleep apnea (AHI 5-30) - Severe apnea patients who cannot tolerate CPAP after a fair trial - Snorers without full apnea (primary snoring) - Frequent travelers - Side sleepers who struggle with mask seal
Combination therapy (both CPAP and appliance) is sometimes used for severe cases when CPAP alone isn't tolerated at full pressure.
How we fit and adjust an oral appliance
The process at our office:
- Consultation - review your sleep study results, examine your bite, TMJ, and dentition for candidacy. Some patients with severe gum disease or insufficient teeth need treatment first.
- Digital impressions with our intraoral scanner - no goopy trays.
- Custom fabrication at a specialty lab - typically 2-3 weeks.
- Delivery and titration - we start at a comfortable starting position and advance the jaw forward gradually over 4-8 weeks until snoring/apnea events resolve.
- Follow-up sleep study at 3-6 months to confirm efficacy. We adjust the appliance if needed.
- Annual check-ins to verify fit and effectiveness.
Side effects we manage: temporary jaw soreness, slight bite changes (usually transient), and rarely TMJ irritation.
Frequently asked questions
- Will my insurance cover an oral appliance?
- Most medical insurance plans cover oral appliance therapy when you have a documented sleep apnea diagnosis (apnea-hypopnea index ≥ 5) and a physician's prescription. We pre-authorize before fabrication.
- How long does an oral appliance last?
- Most appliances last 5-7 years with daily use. Bite changes, normal wear, or shifting tooth position may require adjustment or remake during that window.
- Will an oral appliance cure my sleep apnea?
- It treats it as long as you wear it. Like CPAP, an oral appliance does not "cure" apnea - it manages it. Stop wearing it and the apnea returns.
- Can I just buy an over-the-counter snore guard?
- OTC devices may help with simple snoring but are not effective for documented sleep apnea - and a poor fit can cause bite changes or TMJ issues. Custom appliances are fitted to your specific anatomy.