Sleep apnea is a condition in which breathing repeatedly stops or becomes restricted during sleep, most commonly due to a collapse or partial obstruction of the upper airway.
The traditional treatment for moderate to severe obstructive sleep apnea is CPAP therapy (Continuous Positive Airway Pressure). Over the past few decades, however, dentistry has taken on an increasingly important role in the management of sleep-related breathing disorders.
Orthodontists and dental sleep medicine professionals can fabricate customized Mandibular Advancement Devices (MADs). These oral appliances gently position the lower jaw forward during sleep, helping to keep the airway open and reduce breathing interruptions. Their effectiveness has been scientifically validated and is supported by professional guidelines and clinical reviews.

What do your teeth, posture, and feet have in common?

Modern research suggests a relationship between the shape of the dental arch, the height and width of the palate, and the severity of obstructive sleep apnea.

A narrow upper jaw or a high, constricted palate is often associated with an increased risk of upper airway collapse. While these anatomical characteristics are not necessarily the direct cause of sleep apnea, they may serve as important risk indicators.

Furthermore, the bite and jaw position can influence head and body posture through complex neuromuscular pathways involving the trigeminal nerve and the muscles of mastication.

Some studies have identified associations between malocclusion (improper bite) and changes in:

• Body posture
• Balance and stability
• Foot pressure distribution

Although current findings remain mixed and further research is needed, emerging evidence suggests that the body should be viewed as an interconnected system.

In children, researchers have also observed potential links between foot posture (including arch development) and certain orthodontic abnormalities. These findings support a broader multidisciplinary perspective that considers the relationship between:

Teeth → Jaw → Spine → Feet

However, it is important to note that additional high-quality clinical studies are still required to fully confirm and explain these connections.

If you experience:

• Chronic snoring
• Excessive daytime sleepiness
• Morning headaches
• Reports from a partner that you stop breathing during sleep

it may be worth scheduling an evaluation with our team.

A dental and orthodontic examination can be an important part of the overall assessment process. During an examination, an orthodontist may identify risk factors such as:

• Narrow jaws
• A high or constricted palate
• Specific bite abnormalities
• Jaw positioning issues

These findings do not constitute a diagnosis of sleep apnea, but they may indicate the need for further medical evaluation.

If you struggle to tolerate a CPAP device, a custom-made Mandibular Advancement Device (MAD) may be considered. Scientific evidence has shown these appliances to be effective for many patients with mild to moderate obstructive sleep apnea, helping to reduce apnea episodes while improving sleep quality and daytime energy levels.

Posture and head position may also influence breathing patterns. When sleep apnea is accompanied by neck pain, back pain, jaw discomfort, or foot-related issues, the most effective approach is often a multidisciplinary one involving collaboration between:

• An Orthodontist
• An ENT Specialist
• A Physiotherapist
• A Podiatrist or Orthopedic Specialist

This modern, systems-based approach recognizes that the human body functions as one interconnected chain.

That is why, if you experience sleep problems, jaw discomfort, changes in your bite, postural instability, or foot pain, it is important to discuss these symptoms with your orthodontist. Sometimes they are the first healthcare professional able to identify early warning signs and guide you toward appropriate care.

• Manetta IP et al., Mandibular Advancement Devices in Obstructive Sleep Apnea (PubMed Central review)
• American Academy of Dental Sleep Medicine – Position Statements and Clinical Recommendations
• Ciavarella D. et al., Correlation Between Dental Arch Form and OSA Severity
• Systematic Reviews published in MDPI journals, AJO-DO, and other peer-reviewed sources regarding the effectiveness and long-term outcomes of Mandibular Advancement Devices (MADs)