Sleep Dental Medicine, Explained Clearly

It’s not uncommon that when I mention I specialize in dental sleep medicine, someone frowns and asks: “Isn’t that something a neurologist should handle?” And it’s understandable. Sleep has traditionally belonged to the medical field. But the truth is, the mouth and its structures play a key role in many sleep-related breathing disorders… and that’s precisely where we come in.

According to the Spanish Sleep Society, it’s estimated that more than 4 million people in Spain suffer from sleep apnea — and a large percentage don’t even know it. In Barcelona, recent studies indicate that snoring and sleep apnea affect nearly 20% of the adult population, with a significant increase in men over 45 and people with excess weight.

What exactly is dental sleep medicine?

It’s an interdisciplinary field that focuses on the diagnosis and treatment of sleep disorders related to the upper airway — particularly obstructive sleep apnea (OSA) and chronic snoring. The goal? To improve the patient’s quality of sleep… and in many cases, their partner’s as well.

From a dental perspective, we work hand-in-hand with pulmonologists, ENTs, and sleep medicine specialists to offer treatment options such as mandibular advancement devices (MADs), which are suitable for many mild or moderate cases of OSA.

When the mouth becomes a barrier: causes of the problem

Snoring and sleep apnea are often caused by a partial or complete collapse of the airway during sleep. Several factors increase the risk of this happening, including:

• Obesity or being overweight
• Alcohol or sedative intake before bed
• Retrognathia (recessed jaw)
• Large tongue or tonsil hypertrophy
• Low muscle tone (as seen in certain neuromuscular conditions)
• Sleeping on your back
• Smoking

Additionally, conditions such as high blood pressure, type II diabetes, and a family history of sleep apnea can also elevate the risk.

How do I know if I have it?

Symptoms can be subtle, and many people don’t recognize them as signs of a real issue. Here are a few red flags to watch out for:

• Loud, habitual snoring
• Breathing pauses during sleep (often noticed by a partner)
• Daytime sleepiness or difficulty concentrating
• Waking up gasping for air
• Morning headaches
• Dry mouth upon waking
• Nocturnal bruxism (teeth grinding)
• Mood swings, anxiety, or depression

In children, sleep disorders may present as attention problems, poor school performance, or hyperactivity.

What role does a dentist play in all this?

As a specialist in dental sleep medicine, I can help assess whether there’s a functional airway obstruction at the oral level. With a thorough clinical examination, review of your medical history, and complementary studies such as polysomnography or home sleep apnea tests, a proper diagnosis can be made.

In some cases, we recommend a mandibular advancement device (MAD), which gently repositions the lower jaw forward during sleep to help keep the airway open. Other complementary treatments may include:

• Lifestyle changes (e.g., weight loss, smoking cessation)
• Orofacial myofunctional therapy
• Postural training
• Specific surgeries in complex cases

The impact on quality of life… and relationships

Snoring isn’t just bothersome — it may be a warning sign of something more serious. Beyond the cardiovascular, metabolic, and neurological risks associated with sleep apnea, poor-quality sleep affects your mood, energy, memory… and often, your relationship.

A 2021 study published in the European Respiratory Journal revealed that over 50% of partners of individuals with sleep apnea experience fragmented sleep and reduced quality of life.

Conclusion: Sleep is not a luxury — it’s a need

If you snore, wake up tired, or just feel like you’re not getting restorative sleep, don’t ignore it. Poor sleep affects more than just your energy — it impacts your overall health, your heart, your brain, and your emotional well-being. And yes — it may surprise you, but in many cases, a dentist can help.

Our role in dental sleep medicine is part of a new kind of dentistry: one that looks beyond the teeth to understand the patient as a whole. Because taking care of your health also means taking care of your sleep.

References

• Durán-Cantolla J, et al. Obstructive sleep apnea is a common and underdiagnosed condition in the general population. Am J Respir Crit Care Med. 2005;171(2):164–170.
• Bonsignore MR, et al. Sleep apnea and systemic inflammation. Eur Respir J. 2021;58(2):2002345.
• Ramar K, et al. Clinical Practice Guideline for the Treatment of Obstructive Sleep Apnea and Snoring With Oral Appliance Therapy. J Clin Sleep Med. 2015;11(7):773–827.
• Sociedad Española del Sueño. Datos sobre apnea del sueño en España. Estudio SIESTA, 2020.