Sleep apnea is a prevalent yet often misunderstood sleep disorder that affects millions of people worldwide. It is estimated that 1 in 4 Canadian adults shows some signs of the condition.
In this comprehensive guide, we will delve into what sleep apnea is, the role of CPAP machines, who is susceptible to sleep apnea, the diagnostic process, and the challenges associated with CPAP therapy. Additionally, we will also explore alternatives, focusing on advice from Dr. Dahan.
There is an important point that CPAP is not your only option. Research published in the Journal of Otolaryngology found that CPAP adherence rates in Canada range from just 30% to 60%. That means up to 70% of people who are prescribed a CPAP machine are not using it consistently and their sleep apnea is going untreated as a result.
You deserve better than that. And there are evidence-based solutions.
What is Sleep Apnea?
Sleep apnea is a sleep disorder characterized by pauses in breathing or shallow breathing during sleep. These interruptions can last from a few seconds to minutes and may occur 30 times or more per hour. The severity of sleep apnea is measured using the Apnea-Hypopnea Index (AHI), which refers to the number of breathing interruptions per hour of sleep.
- Mild OSA: AHI of 5–14 events per hour.
- Moderate OSA: AHI of 15–29 events per hour.
- Severe OSA: AHI of 30 or more events per hour.
Understanding your AHI is critical because it directly shapes which CPAP alternatives may be appropriate for you.
Obstructive Sleep Apnea (OSA)
Obstructive sleep apnea is the most prevalent form. In OSA, the airway is partially or completely blocked during sleep due to relaxed throat muscles. This blockage hinders the smooth flow of air, leading to the characteristic pauses in breathing. Common signs of OSA include:
- Loud snoring
- Gasping or choking sounds as breathing resumes
- Waking unrefreshed despite a full night of sleep
- Excessive daytime sleepiness, brain fog, or difficulty concentrating
- Morning headaches
Central Sleep Apnea (CSA)
Central sleep apnea, on the other hand, is characterized by a lack of effort to breathe rather than a physical obstruction. In CSA, the brain fails to send proper signals to the muscles responsible for breathing. Some individuals experience a combination of both types, known as complex sleep apnea syndrome (or treatment-emergent central sleep apnea).
The CPAP alternatives discussed in this article are effective for obstructive sleep apnea. Central sleep apnea requires a different treatment.
What Is a CPAP Machine?
Continuous Positive Airway Pressure (CPAP) machines are the most commonly prescribed devices for treating sleep apnea. The CPAP machine delivers a constant stream of pressurized air through a mask to keep the airways open during sleep, preventing pauses in breathing. While evidence suggests that CPAP therapy can be effective, it’s not suitable for everyone.
CPAP machines comprise a compact unit that houses a motor, air filter, and a humidification chamber. The patient wears a mask connected to the CPAP machine, which delivers a continuous and steady flow of pressurized air.
The primary function of CPAP is to create enough pressure to prevent the collapse or narrowing of the upper airway. This ensures a consistent oxygen supply during sleep. The prescribed air pressure is determined through polysomnography (sleep study) and is customized based on the individual’s specific needs.
There are also BiPAP (Bilevel Positive Airway Pressure) machines, which deliver higher pressure on inhalation and lower pressure on exhalation. It is typically reserved for patients with pre-existing lung conditions or those who require higher sustained pressure.
When used consistently, CPAP can reduce AHI by 90% or more. The problem is that many people simply cannot wear it every night.
Who Does Sleep Apnea Affect?
Sleep apnea is a sleep disorder that can impact individuals across a broad demographic spectrum. While it can affect people of any age or gender, certain risk factors may contribute to an increased likelihood of developing the condition.
- Obesity is a significant risk factor, as excess weight can lead to the accumulation of fatty tissue around the neck, potentially obstructing the airway during sleep. Studies show that losing just 10% of body weight can produce a 30% reduction in sleep apnea symptoms.
- Advancing age is also associated with an elevated risk, with older individuals being more susceptible to changes in muscle tone and the overall structure of the airway.
- A family history of sleep apnea can indicate a genetic predisposition, suggesting that genetic factors may play a role in its development. If your parents have sleep apnea, you may be up to 50% more likely to develop it.
- Lifestyle choices, such as smoking, can contribute to inflammation and irritation of the airways, exacerbating the risk of breathing interruptions during sleep.
- Certain medical conditions, particularly hypertension (high blood pressure), are linked to an increased likelihood of experiencing sleep apnea.
- A larger neck circumference (greater than 17 inches in men, 15 inches in women) is a recognized risk factor.
- Anatomical factors, such as a narrowed airway, enlarged tonsils, or a recessed jaw, can contribute to airway obstruction.
Recognizing the signs of sleep apnea is crucial for early intervention and effective management. Common indicators include loud snoring, choking or gasping sounds during sleep, and persistent daytime sleepiness.
Who Can Diagnose Sleep Apnea?
Sleep apnea is diagnosed by healthcare professionals with experience in sleep medicine. They can include pulmonologists, otolaryngologists (ear, nose, and throat doctors), neurologists, or other healthcare providers trained in sleep disorders.
If an individual suspects they have sleep apnea, the initial step is to consult with a primary care physician, who may then refer them to a sleep specialist for further evaluation.
The definitive diagnosis involves a sleep study, which is a comprehensive assessment of an individual’s sleep patterns and respiratory function. Sleep studies can be conducted in a sleep center or through home-based sleep testing devices, the latter becoming increasingly common in Canada as an accessible and cost-effective option.
During a sleep study, various physiological parameters are monitored, including brain activity, eye movement, heart rate, airflow, and oxygen levels.
A sleep specialist interprets the data collected during the sleep study to determine the presence and severity of sleep apnea. Following a diagnosis, the sleep specialist works with the individual to develop an appropriate treatment plan, which may include:
- Lifestyle changes,
- Positional therapy,
- Other interventions tailored to the specific needs of the patient.
Seeking consultation with a qualified practitioner is essential for accurate diagnosis and the development of an effective management strategy for sleep apnea.
Read Also: The Difference Between TMD and TMJ.
The Challenges with CPAP Therapy
CPAP therapy is considered the gold standard treatment for obstructive sleep apnea. It works exceptionally well when used. But “when used” is the critical caveat.
Clinical research tells a sobering story about CPAP adherence:
- Studies show CPAP adherence rates ranging from 30% to 60% in Canada.
- Up to 50% of CPAP users quit within the first year of receiving their CPAP device.
- Up to 26% of newly diagnosed patients choose not to start CPAP at all.
Common reasons patients abandon CPAP therapy include:
- Mask discomfort.
- Noise from the machine and air leaking at the mask seal.
- Travel inconvenience.
- Nasal dryness or congestion.
- Difficulty maintaining pressure settings.
- Relationship strain.
From a clinical standpoint, an untreated sleep apnea patient is at elevated risk for stroke, myocardial infarction, hypertension, motor vehicle accidents, and reduced work performance. The economic and health burden of untreated OSA in Canada is substantial, which is exactly why finding a therapy you will use matters more than finding the one that is theoretically most effective.
I see patients every week who have been prescribed CPAP, cannot tolerate it, and have been sleeping untreated for months or even years. The good news is that for most patients with mild to moderate OSA, there are CPAP alternatives that they will wear every night. – Dr. Dahan
CPAP vs. Oral Appliance: Side-by-Side Comparison
| Feature | Oral Appliance | CPAP Machine |
|---|---|---|
| Reduces Snoring | ✅ | ✅ |
| Treats Sleep Apnea | ✅ | ✅ |
| Comfort | ✅ | ❌ |
| Ease of Use | ✅ | ❌ |
| Portability | ✅ | ❌ |
| Noise Level | ✅ Silent | ❌ |
| Long-Term Cost | ✅ Lower | ❌ Higher |
| Maintenance | ✅ Simple | ❌ Complex |
| Power Required | ✅ No | ❌ Yes |
| Adherence Rate | ✅ Up to 90% | ❌ 30–60% |
Hope Beyond CPAP: Exploring Your CPAP Alternatives for Sleep Apnea Treatment
Fortunately, there are alternatives for individuals who struggle with sleep apnea and are undergoing CPAP therapy. The Canadian Thoracic Society officially recognizes two effective treatments for moderate to severe obstructive sleep apnea:
- CPAP machines.
- Oral Appliance Therapy (OAT).
Beyond those two, several other approaches can contribute to meaningful improvement, either as standalone options or in combination with other therapies.
Research published in the American Journal of Respiratory and Critical Care Medicine has shown that the real-world health outcomes of oral appliance therapy are comparable to CPAP, even in some severe OSA cases, precisely because patients wear oral appliances more reliably.
Oral Appliance Therapy: The Leading Alternative to CPAP for Sleep Apnea in Canada
An evidence-backed alternative to CPAP is oral appliance therapy (OAT). It is also called a mandibular advancement device (MAD), dental sleep appliance, or sleep apnea mouth guard.
Oral appliance therapy involves a custom-fitted device that repositions the lower jaw (mandible) slightly forward during sleep. This forward positioning:
- Prevents the tongue from falling back into the throat.
- Widens the upper airway, creating more space for airflow.
- Reduces airway collapse.
What the Research Says
The clinical evidence supporting oral appliance therapy has grown substantially over the past decade.
- For about 70% of patients with OSA, mandibular advancement device therapy reduces AHI severity by more than 50%.
- For approximately one-third of patients, OAT completely resolves OSA symptoms.
- Adherence rates for oral appliances reach up to 90% in clinical studies, which is dramatically higher than CPAP.
- A landmark randomized controlled trial published in the American Journal of Respiratory and Critical Care Medicine found that health outcomes between CPAP and oral appliance therapy are equivalent, even in some severe OSA cases, attributed to the superior nightly adherence to oral appliances.
- OAT has been shown to reduce daytime fatigue, lower blood pressure, improve cognitive function, mood, and overall quality of life.
Types of Oral Appliances for Sleep Apnea Management
- Mandibular Advancement Devices (MADs) are the most commonly used type. These fit over your upper and lower teeth and gently advance the lower jaw forward. Most modern custom devices are two-piece, allowing for fine adjustments in 1mm increments. Examples used at our Ottawa TMJ clinic include the Panthera D-SAD, SomnoDent, and the Thornton Adjustable Positioner (TAP).
- Tongue-Stabilizing Devices (TSDs) use gentle suction to hold the tongue in a forward position without requiring jaw advancement. They are a useful option for patients who cannot tolerate jaw repositioning devices.
Custom-Fitted vs. Over-the-Counter Devices
It is worth addressing a common question: “Can I just buy a boil-and-bite mouthguard from the pharmacy?”
Well, no. It is not good for effective sleep apnea treatment. Over-the-counter mouthguards are not calibrated to your specific anatomy, cannot be precisely adjusted to optimize your airway opening, and have not demonstrated the clinical efficacy of custom-fitted prescription devices.
For sleep apnea treatment that addresses a serious medical condition, a properly fitted device from a trained dental sleep medicine provider is essential.
Why Oral Appliance Therapy Works for Treating Sleep Apnea? Dr. Dahan’s Clinical Perspective
I have been treating sleep apnea patients with oral appliance therapy for years, and what I consistently see is that the patients who switched from CPAP to oral appliance therapy report significantly better quality of life and sleep. They travel freely and stop worrying about power sources, and their partners sleep better too. The compliance rates we see in our clinic match what the research tells us. Patients wear these devices because they are comfortable, discreet, and effective. — Dr. Haissam Dahan, Dentist (AADSM), Ottawa TMJ & Sleep Apnea Clinic
Who Is a Good Candidate for Oral Appliance Therapy?
OAT is most commonly recommended for:
- Patients with mild to moderate sleep apnea (AHI of 5–30 events per hour).
- Patients with severe OSA who cannot tolerate CPAP and need an alternative.
- Individuals who travel frequently and need a portable, no-power solution.
- Patients with positional OSA (symptoms worsened by sleeping on their back).
- Those experiencing claustrophobia or CPAP mask discomfort.
OAT may be less suitable for patients with significant tooth loss, advanced gum disease, or certain temporomandibular joint disorders. However, Dr. Dahan’s experience in both TMJ and sleep medicine means that even patients with jaw concerns can often be treated with careful device selection and monitoring.
Dietary and Lifestyle Changes: A Foundation for All Treatment Options
Regardless of which CPAP alternative you pursue, lifestyle changes form a critical foundation.
- Weight management: Obesity is one of the most significant modifiable risk factors for sleep apnea. Even modest weight loss can meaningfully improve AHI.
- Avoiding alcohol and sedatives: These substances relax the muscles of the throat, worsening airway collapse. Avoiding alcohol within 3–4 hours of bedtime is particularly important.
- Sleep hygiene: Maintaining a consistent sleep schedule, creating a cool and dark sleep environment, and reducing screen exposure before bed all support better sleep quality.
- Exercise: Regular physical activity, even without significant weight loss, has been shown to reduce severity of your sleep apnea by improving upper airway muscle tone.
- Nasal health: Treating nasal congestion (whether allergic or structural) can reduce nighttime mouth breathing and improve the effectiveness of both CPAP and oral appliances.
Positional Therapy: Another Alternative to CPAP Therapy
For some individuals, sleep apnea occurs predominantly when sleeping on their back (the supine position). In these cases, positional therapy can significantly reduce AHI.
Practical approaches of positional therapy include:
- Specialized positional pillows designed to encourage lateral sleeping
- Positional sleep devices worn on the back that gently vibrate when you roll onto your back, such as the NightBalance device (approved by Health Canada for positional OSA)
- The classic “tennis ball” method: sewing a pocket on the back of a pajama top and inserting a tennis ball to prevent supine sleeping
While positional therapy is rarely sufficient as a standalone treatment for moderate or severe OSA, it is a useful and low-cost addition to any comprehensive sleep apnea management plan.
Surgery for OSA: When Is It Appropriate?
In some instances, surgery may be considered as a more permanent solution for obstructive sleep apnea (OSA). Surgical options aim to address physical obstructions or abnormalities contributing to airway blockages. Common surgical procedures include:
- Uvulopalatopharyngoplasty (UPPP).
- Genioglossus advancement (GA).
- Maxillomandibular advancement (MMA).
While surgery is typically reserved for cases where other treatments have failed or are not suitable, it can offer lasting results by addressing the anatomical factors contributing to sleep apnea. However, surgery is not without risks and should be carefully considered after thorough consultation with healthcare professionals.
In navigating the landscape of sleep apnea alternatives, it’s essential to explore various options and consult with healthcare providers to determine the most suitable approach based on individual needs and preferences.
Oral Appliance Therapy: A Comfortable Alternative
One alternative to CPAP therapy is oral appliance therapy, which involves using a custom-fitted device that repositions the jaw and tongue to keep the airway open.
Dr. Dahan emphasizes the comfort and ease of use associated with oral dental appliances.
Why Oral Appliance Therapy?
- Comfort: Unlike CPAP masks, oral dental appliances are compact, comfortable, and easy to wear, making them a preferred option for individuals with CPAP intolerance.
- Ease of Use: Oral dental appliances are simple to use and do not require intricate setup or adjustments, offering a user-friendly experience for sleep apnea sufferers.
- Effective Treatment: Many patients find oral appliance therapy to be an effective solution, addressing sleep apnea symptoms without the challenges associated with CPAP.
Dr. Dahan emphasizes the importance of seeking alternative treatments if CPAP is not a suitable option. He notes, “I am experienced in treating sleep apnea with oral appliance therapy, and I have witnessed its positive impact on the lives of many patients.”
Explore Oral Appliance Therapy: A Sleep Apnea Solution Without CPAP
If you have struggled with CPAP therapy or are exploring alternative treatments for sleep apnea, Dr. Dahan invites you to contact our TMJ clinic in Ottawa for a consultation. Discover if oral appliance therapy is the right solution for you and take a step towards better sleep and improved overall health.
Contact your board-certified Dental Sleep Medicine dentist in Ottawa today to schedule your consultation and take the first step toward better sleep and a better quality of life. Contact us now.