An honest, evidence-based comparison of both therapies — so you can make an informed decision with your sleep physician and Dr. Barzilay.
Side-by-Side Comparison
Both therapies are clinically effective when used correctly. The right choice depends on your AHI, anatomy, lifestyle, and personal preference.
| Factor | Oral Appliance Therapy OAT | CPAP / BiPAP |
|---|---|---|
| How it works | Repositions the lower jaw and tongue forward, mechanically opening the airway | Delivers continuous positive air pressure through a mask to pneumatically splint the airway open |
| Device size | Pocket-sized — fits in a carry-on or jacket pocket | Machine, tubing, mask, humidifier — requires dedicated luggage |
| Comfort | Custom-fitted to your dentition; the most common reason for preference over CPAP | Mask pressure, air leaks, and claustrophobia are common complaints |
| Noise | Silent | Audible airflow; some machines quieter than others |
| Long-term compliance | Studies show OAT compliance is consistently higher than CPAP at 1–5 years (typically 77–83% vs. 40–60%) | Machine data shows average nightly use of 3.5–4.5 hrs in real-world settings |
| Efficacy — AHI reduction | Highly effective for mild-to-moderate OSA; efficacy is objectively verified with follow-up sleep testing in our practice | CPAP is the most effective AHI-reduction therapy when used correctly and consistently |
| Travel & flying | Carry-on friendly · no power supply needed | Bulky; distilled water requirements; TSA inspection common; altitude may affect pressure |
| Sleeping position | No restrictions — sleep in any position | Mask hose can restrict movement; side-sleeping requires care |
| Power dependency | None — works during camping, power outages | Requires electricity (or a battery backup) |
| Maintenance | Daily rinse; replace every 3–5 years; no consumable parts | Weekly mask/tubing cleaning; filters, masks, and water chambers replaced regularly |
| Side effects | Temporary morning jaw soreness; minor occlusal changes with long-term use — monitored at every visit | Dry mouth, aerophagia, mask pressure sores, nasal congestion |
| Insurance coverage | Varies — many extended health plans cover OAT; check your policy | Generally covered under provincial ADP or extended health plans |
Candidacy
Dr. Barzilay assesses every patient individually. These are the strongest clinical indicators for OAT success.
AHI 5–30 with EDS or impaired quality of life. First-line therapy per AASM guidelines alongside CPAP.
Documented CPAP trial with mask intolerance, claustrophobia, aerophagia, or pressure issues. OAT is the evidence-based alternative.
If travel compliance is the primary reason your CPAP use falls short, OAT offers a portable, power-free solution.
Disruptive snoring without significant apneas still responds well to mandibular advancement and dramatically improves bed partner sleep.
OSA that worsens in the supine position responds especially well to OAT, which allows unrestricted sleep positioning.
For patients with severe OSA who have exhausted CPAP options, combination OAT+CPAP or OAT alone with objective monitoring may be appropriate.
Our Compliance Protocol
Many dental practices fit an oral appliance and rely solely on patient-reported improvement. Dr. Barzilay's protocol requires a follow-up sleep study after every appliance to objectively verify AHI reduction.
This is the AASM standard — and it's the only way to confirm that therapy is actually protecting your health, not just improving how you feel.
OAT never begins without a formal diagnosis from a sleep physician.
Digital impressions; multiple FDA-cleared device options matched to your anatomy.
Progressive adjustment protocol; comfort and efficacy are both tracked.
Objective AHI data shared with your sleep physician. Written report provided.
Regular occlusal checks, appliance wear assessment, and physician co-management.
Common Questions