A recent Australian study published in the highly respected New England Journal of Medicine has attracted significant attention in the field of sleep medicine and obstructive sleep apnoea (OSA) treatment.
The study examined whether CPAP (Continuous Positive Airway Pressure) therapy could reduce the risk of serious cardiovascular events such as heart attack, stroke, and death in patients with obstructive sleep apnoea who already had existing cardiovascular disease.
Surprisingly, the study found that CPAP therapy did not significantly reduce the occurrence of major cardiovascular events in these patients.
Why Were the Results Unexpected?
CPAP therapy has long been considered the gold standard treatment for obstructive sleep apnoea. However, one important factor highlighted by the study was patient compliance.
The research showed that:
- Only 42% of participants consistently used their CPAP machine
- Average nightly usage was approximately 3.3 hours per night
For CPAP therapy to be fully effective, it generally needs to be worn consistently for most or all of the night. Many patients find CPAP difficult to tolerate due to discomfort, noise, dryness, mask irritation, or interrupted sleep.
It is possible that the limited nightly use reduced the overall health benefits seen in the study.
CPAP Still Improved Quality of Life
Although CPAP did not significantly reduce cardiovascular events in this study, it did improve several important quality-of-life factors.
Patients using CPAP experienced improvements in:
- Daytime tiredness
- Sleep quality
- Mood and depression symptoms
- Snoring
- General wellbeing
This reinforces the idea that treating sleep apnoea remains extremely important for improving daily function and overall health.
Oral Appliances: An Effective Alternative to CPAP
Oral appliances are another well-established treatment option for obstructive sleep apnoea and snoring.
These custom-made dental devices work by gently repositioning the jaw during sleep to help keep the airway open.
Research has shown that oral appliances can provide improvements similar to CPAP in areas such as:
- Snoring reduction
- Daytime fatigue
- Concentration and memory
- Mood and depression
- Overall sleep quality
One major advantage of oral appliances is comfort and ease of use. Many patients find them significantly easier to wear compared to CPAP machines, which may improve long-term treatment compliance.
Why Patient Compliance Matters
The most effective sleep apnoea treatment is often the one a patient can comfortably use every night.
While CPAP remains highly effective when used correctly and consistently, oral appliances may offer a more practical and comfortable long-term solution for many patients — particularly those who struggle with CPAP therapy.
Is an Oral Appliance Right for You?
Oral appliance therapy may be suitable for patients who:
- Snore heavily
- Have mild to moderate obstructive sleep apnoea
- Cannot tolerate CPAP therapy
- Want a quieter and more portable treatment option
- Travel frequently
A proper assessment by a qualified dental professional experienced in sleep dentistry is important to determine the most appropriate treatment option.
Final Thoughts
This recent study highlights an important reality in sleep apnoea treatment: effectiveness depends not only on the treatment itself, but also on whether patients can comfortably use it consistently.
While CPAP remains an important treatment option, oral appliances continue to gain recognition as an effective, comfortable, and patient-friendly alternative for managing snoring and obstructive sleep apnoea.
For many patients, oral appliance therapy may provide the balance of comfort, convenience, and effectiveness needed for long-term success.
Read more about the study here: