Can You Fix Sleep Apnea Without a CPAP?

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Yes, many adults can improve sleep apnea without a CPAP. Obstructive sleep apnea usually happens because your mouth is too small for your tongue, so the tongue falls back into your airway at night. Airway dentists can widen the palate (even in adults), create more room with expansion aligners, release tongue ties, and retrain the tongue. Dr. Jeff Buxton typically sees about a 75% improvement, and sometimes much more.

Key takeaways

CPAP manages sleep apnea. Airway dentistry can address the root cause: a mouth too small for the tongue.

Grinding your teeth, high blood pressure, and waking up anxious can all be signs.

Poor deep sleep affects your heart, blood sugar, appetite hormones, anxiety, and brain cleanup.

It starts with a multi-night home sleep test and a 3D scan of your airway.

Adults can get true palate expansion with a bone-borne expander, plus clear aligners so no gap forms.

Meet Dr. Jeff Buxton

Dr. Jeff Buxton is an airway dentist in Draper, Utah, and his clinic was the first Tooth Pillow clinic in the country. After 15 years in dental sleep medicine, he sold his general practice to focus 100% on helping kids and adults breathe and sleep better.

His own story sold me. He thought he slept great. He could fall asleep in two seconds. Then he took a sleep test at a conference: he stopped breathing 43 times an hour. That's severe sleep apnea.

And his grandfather died of cardiac arrest in his sleep a year before Dr. Buxton was born.

I'm bringing my whole family to him, one at a time.

🎧 Listen to the full episode: Can You Fix Sleep Apnea Without a CPAP?

What are the signs of sleep apnea in adults?

Dr. Buxton's first clues were in his twenties:

High blood pressure despite being active and thin
Teeth grinding, which every dentist blamed on stress

Here's the thing: grinding and clenching often happen when your oxygen drops at night. Your body tightens the head and neck muscles to pry the airway open. It was stress. Respiratory stress.

Other signs to watch for:

Snoring or gasping (ask your partner)
Waking up anxious or panicked
Needing 10 hours of sleep and still feeling tired
Trouble focusing, a racing mind, adult ADHD symptoms
Weight gain and constant hunger
Low blood oxygen on your sleep tracker
Bony bumps in your mouth (tori), often linked to grinding

Quantity doesn't equal quality. You can sleep 10 hours and still not get the deep sleep your body needs.

Why is sleep apnea so bad for your health?

Deep sleep is when your body heals and repairs. When your breathing keeps stopping, Dr. Buxton says it can affect:

Your heart: it has to work harder all night. Heart disease is the number one killer of men and women.
Blood sugar: poor sleep affects insulin response and can push you toward diabetes.
Hunger hormones: ghrelin (eat!) goes up and leptin (stop!) goes down, which can drive weight gain.
Growth hormone: it's released in deep sleep and supports many other hormones.
Anxiety: imagine holding your breath over and over all night.
Brain cleanup: in deep sleep, your brain's glymphatic system flushes out waste proteins linked to Alzheimer's and dementia. Those changes can start 20 to 30 years before symptoms.

And when oxygen drops, your stress response (the HPA axis) keeps firing. Cortisol rises, blood sugar rises, inflammation rises. Your brain, muscles, and liver, some of your biggest energy users, get starved.

Is poor sleep one of your root causes? 👉 Take the free Root Causes Quiz to see where your body is struggling most.

What causes obstructive sleep apnea?

First, Dr. Buxton always checks the nose. If you can't breathe through your nose, see an ENT.

But most of the time, the culprit is the tongue or soft palate falling back during sleep. Two reasons:

Anatomy: the mouth is too small. Think of it as a room that has to hold 32 teeth and a tongue. Most people don't have room for all their teeth anymore (hello, wisdom teeth). The tongue is boxed in on three sides, so the only place it can go is back.
Muscle tone: the tongue is a muscle, and if it doesn't function well, it sags.

During the day, we compensate with forward head posture, jutting the jaw forward, and mouth breathing.

Dr. Buxton used to think some patients had big tongues. Now he knows they have small mouths.

How does CPAP work, and why do people quit?

CPAP blows air in at a set pressure to keep the airway from collapsing. It's considered the gold standard, and some people truly need it, especially those with central sleep apnea (where the brain and breathing muscles aren't communicating well).

But it doesn't change the anatomy. And Dr. Buxton says about 80% of CPAP users give up within a year.

How do you fix sleep apnea without a CPAP?

Here's what a patient's journey looks like with Dr. Buxton:

Step 1: A home sleep test (3 to 5 nights)

It's a simple ring-style finger monitor shipped to your home, not wires on your face. Testing several nights gives a truer picture than one night in a lab.

Step 2: A cone beam CT scan

A dental 3D scan with about one-tenth the radiation of a medical CT. It shows airway volume, jaw size, tonsils, adenoids, and a deviated septum.

Step 3: An exam

Measurements, muscle function, and nasal breathing.

Step 4: The right tool for you

Expansion aligners (like Invisalign, but designed to widen, never shaving teeth down). For mild and some moderate cases, this alone can help.
Removable appliances to remodel the palate
Bone-borne palate expanders (MARPE or DOME) for true skeletal expansion in adults. Tiny temporary mini-screws hold the expander to the palate so the force goes to the bone, not the teeth. Expect soreness for about a day, then slow expansion over roughly 9 to 12 months. Widening the roof of the mouth also opens the floor of the nose.
Clear aligners at the same time, so no gap appears between your front teeth. To everyone else, it just looks like you're doing Invisalign.
Myofunctional therapy (tongue training) for every patient
Laser tongue-tie release if needed. Your tongue connects to fascia that runs all the way down to your toes.

You always get to choose. If skeletal expansion is too much for you, gentler options can still create more tongue space.

Does airway treatment for sleep apnea work?

Dr. Buxton retests sleep partway through and at the end. On average:

Aligners: about 50% improvement in AHI (how often you stop breathing)
Plus myofunctional therapy: about another 50% of what's left
Total: roughly 75% improvement

He's seen someone go from nearly 100 breathing stops an hour down to 5.

His favorite results? "I can breathe through my nose for the first time in forever." And spouses who say, "We're sleeping in the same room again."

Sleep apnea isn't just overweight men anymore. He sees it in triathletes and petite women too.

How do I get a sleep test?

Visit drjeffbuxton.com, book a virtual consult, message him on Instagram at @drjeffbuxton, or call his office.

Gutsy Health listeners: mention the podcast for a complimentary home sleep test and $50 off your in-person or virtual consult. He works with patients in other states virtually, and with a sleep physician so you don't wait months.

Frequently asked questions

Can sleep apnea be cured without CPAP?

Many people with obstructive sleep apnea improve significantly with airway-focused dental treatment and tongue training. Results depend on your anatomy, so testing comes first.

Can adults expand their palate?

Yes. With a bone-borne expander (like MARPE or DOME), many adults can get true skeletal expansion. A CBCT scan shows how mature your palate suture is.

Is teeth grinding a sign of sleep apnea?

It can be. Grinding and clenching often happen when oxygen drops during sleep, as your body tightens muscles to open the airway.

Does sleep apnea cause high blood pressure?

It's a known risk factor. Repeated drops in oxygen make your heart work harder all night.

Where do you start?

Sleep is foundational. Once you fix it, Dr. Buxton says, everything else gets easier to treat.

That's the heart of the Order of Healing™: support the foundation first, then build up through gut, liver, adrenals, thyroid, sex hormones, and the brain.

👉 Download the free Order of Healing™ Guide and find your starting point.

🎧 Listen to the full episode on the Gutsy Health Podcast.

Related: Why your child's snoring and teeth grinding shouldn't be ignored, with Dr. Kalli Hale.

This post is for education only and isn't medical or dental advice. Talk with a qualified provider before changing your treatment.