What is sleep apnea, really?
Sleep apnea occurs when the airway repeatedly collapses or becomes obstructed during sleep, causing breathing to stop — sometimes dozens or even hundreds of times a night. The most common form, obstructive sleep apnea (OSA), happens when the soft tissue at the back of the throat relaxes and blocks airflow.
The result is fragmented sleep. Your body keeps waking itself up just enough to restore breathing, often without you ever consciously knowing it. You may spend eight hours in bed and wake up feeling like you slept for four. Chronic fatigue, morning headaches, difficulty concentrating, irritability: these are often the symptoms people notice. The cause is frequently never identified.
Why this shows up in a dental chair
There are several things we look for that can suggest airway issues: the size and position of the jaw, the size of the tongue relative to the airway, wear patterns on the teeth from grinding (which is often the body's attempt to reopen the airway during sleep), scalloping along the edges of the tongue, and certain patterns in how the teeth come together.
None of these are definitive diagnoses. Sleep apnea is diagnosed with a sleep study, not a dental exam. But we are often the first to ask the question. And asking the question matters, because a lot of people with sleep apnea have never been told to look for it.
The health stakes are real
Untreated sleep apnea isn't just exhausting. The repeated oxygen drops and sleep disruptions put sustained stress on the cardiovascular system. OSA is associated with significantly elevated risk for high blood pressure, heart disease, stroke, and atrial fibrillation. It's also increasingly linked to cognitive decline — poor sleep quality over time appears to accelerate the accumulation of the proteins associated with Alzheimer's disease.
Beyond the physical, the connection to mental health is striking. Anxiety, depression, and ADHD-like symptoms are all more common in people with untreated sleep apnea, and in some cases improve meaningfully once sleep is addressed. This is why we ask about your mood, your focus, your energy level. It's not small talk. It's part of understanding what's actually going on.
What we can do
Orthodontic treatment — including clear aligners — can sometimes improve airway dynamics by addressing the position of the jaw and teeth. For patients who have already been diagnosed with sleep apnea at times there are alternatives to using a CPAP, however, the risk-benefits need to be thoroughly understood.
If we have concerns about your airway, we'll talk with you about it and, if appropriate, refer you to a sleep medicine specialist for evaluation. The goal isn't to add to your list of things to worry about. The goal is to make sure the right people are looking at the full picture to maximize your health!
A note on medical history
This is also why we ask detailed questions about your medical history at every visit — not just your teeth and gums, but your medications, your diagnoses, your sleep, your energy. It all connects. A patient on a new blood pressure medication, or one who mentions they've been more forgetful lately, or one whose partner has started sleeping in another room — these details matter.
We're not trying to be your primary care physician. But we are trying to be a thoughtful part of your care team.
As always, if any of this resonates (if you or someone in your family has been told they snore, or wakes up tired, or has never felt like they sleep well), bring it up at your next visit. We'd love to talk through it.
See you soon,
— Dr. Chan 🦷
