Do any of these sound familiar?
You wake up clearing your throat.
The edges of your front teeth look more translucent than they did in photos from five years ago.
Your hygienist asked if you have heartburn, and you said “not really,” because at your age a little heartburn feels normal.
If you recognize any of those signs, read on. What follows is something I notice in the dental chair long before many patients receive a medical diagnosis.
I had a patient—I’ll call her Linda—in her early 50s who ate well, exercised, and came in for a routine cleaning. From the front, everything looked fine. When I tilted my mirror to examine the palatal surfaces, the backs of her upper front teeth looked cupped, shiny, and thin, as if someone had rubbed them with an eraser. The enamel was dissolving from the inside out.
I asked if she had reflux. She said it was only occasional heartburn. Then I asked about medications. She’d been on a proton pump inhibitor (PPI) like omeprazole for nine years. Her physician had told her reflux was “under control.” Her teeth told a different story.
Acid erosion from reflux can be silent. You may not taste the acid or feel pain, but stomach acid that creeps up while you sleep strikes the palatal surfaces first. Over time it spreads to the chewing surfaces of your molars. That’s why hygienists often ask about reflux: the pattern of erosion on the backs of upper teeth is a clear clue.
Dental school didn’t teach me to connect these erosion patterns with esophageal disease. We learned to diagnose cavities and gum disease, but the link between palatal erosion and reflux became clear only through years of clinical observation. Dentists see patients twice a year and examine surfaces that no one else does. That gives us an early-warning view of systemic issues manifesting in the mouth.
I treated another patient with decades of layered erosion so severe it signaled more than enamel wear. The damage was deep and consistent, and I referred her for an esophageal evaluation. She had no GI diagnosis at the time, yet ultimately required surgery for esophageal damage from chronic acid regurgitation. I observed the dental signs before her physician did. This isn’t about being smarter—it’s about frequency of observation and knowing what to look for. Your dentist can be a vital member of your healthcare team.
Another pattern I see is the link between obstructive sleep apnea and acid erosion. When the airway collapses during sleep, the struggle to breathe against obstruction creates negative pressure in the chest. That pressure can pull the lower esophageal sphincter (LES) open, allowing acid to leak upward. You may never taste it or wake from the reflux, but your teeth will show the effects.
If you snore, wake with a dry mouth, or have been told you stop breathing at night, sleep-disordered breathing could be feeding the erosion cycle. A sleep study is worth pursuing in those cases. If you need a provider, consider a qualified dental sleep medicine practitioner or myofunctional therapist who understands the dental signs.
There’s also growing discussion about low stomach acid and reflux. With age, stress, and long-term PPI use, acid production can decline. Some clinicians propose a cycle where lower acid weakens LES tone, allowing more reflux of whatever acid remains, leading to further suppression and digestive dysfunction. Undigested food ferments, pressure rises, and the valve opens more easily.
This is an area of active research and debate, and I’m a dentist, not a gastroenterologist. Still, clinically I see patients on long-term PPIs whose dental erosion does not improve until their digestive function is addressed. Some patients who taper PPIs under medical supervision see stabilization of their teeth. A growing body of research ties patterns of oral erosion to underlying stomach function.
If this resonates or you’ve been on a PPI for years and still notice dental damage, here are practical steps I recommend, in order:
1. Support digestion so food is properly broken down. Long-term PPI use can compromise digestion, allowing undigested food to ferment and increase gastric pressure. A full-spectrum digestive enzyme taken with meals often helps quickly. Don’t stop a PPI suddenly—work with your doctor to taper if appropriate.
2. Remove overnight acid from your mouth and soothe irritated tissues. Before brushing, swish for one to three minutes with an oil-based rinse to lift acid and bacteria off enamel and calm mucosal irritation. Afterward, brush with a nano-hydroxyapatite toothpaste and avoid rinsing so minerals can remain on the enamel. Scrape your tongue each morning to reduce the oral bacteria that get swallowed throughout the day.
3. Rebuild from the inside. When enamel is lost, the body needs nutrients to repair. Vitamin D3 and K2 support calcium absorption and delivery to bone and teeth. CoQ10 supports gum tissue health where reflux has caused inflammation. These nutritional supports can assist tissue repair alongside dental care.
4. Adjust how you drink your morning coffee. Caffeine relaxes the LES. Don’t drink coffee on an empty stomach—eat some fat and protein first—stay upright for at least an hour afterward, and avoid stacking a second cup later in the day. Consider lower-caffeine alternatives that are gentler on the valve.
5. Avoid constant snacking. Every bite can trigger the LES to open and restart acid production. Eat at regular meals and allow your mouth to rest between them so saliva can neutralize acid. Sugar-free xylitol gum can help if you need something between meals.
6. Know your oral microbiome. If you want to understand whether oral bacteria disrupted by reflux pose systemic risk, a targeted oral microbiome test can identify what’s living in your mouth. Measuring the microbiome rather than guessing helps guide treatment and prevention.
Next time a clinician prescribes acid suppression, ask whether anyone has examined what the acid is doing to your teeth. If you or a loved one has been on a PPI for years, or a dentist notes tooth wear without asking why, share this information. Your mouth may be signaling a problem that deserves attention.
P.S. Do not stop a PPI abruptly. Discuss tapering with your doctor to determine what’s safe for your situation. If you don’t have a dentist who links oral signs to whole-body health, seek a practitioner familiar with these connections.
Want to go deeper?
Dental Erosion and Gastroesophageal Reflux
Chakraborty A, Anjankar AP. Association of Gastroesophageal Reflux Disease With Dental Erosion. Cureus. 2022;14(10):e30381.
Dundar A, Sengun A. Dental approach to erosive tooth wear in gastroesophageal reflux disease. African Health Sciences. 2014;14(2):481–486.
Cengiz S, Cengiz MI, Saraç YŞ. Dental erosion caused by gastroesophageal reflux disease: a case report. Cases Journal. 2009;2:8018.
Sleep Apnea and Gastroesophageal Reflux
Jung HK, Choung RS, Talley NJ. Gastroesophageal reflux disease and sleep disorders: evidence for a causal link and therapeutic implications. Journal of Neurogastroenterology and Motility. 2010;16(1):22–29.
Shepherd K, Orr W. Mechanism of Gastroesophageal Reflux in Obstructive Sleep Apnea: Airway Obstruction or Obesity? Journal of Clinical Sleep Medicine. 2016;12(1):87–94.
Low Stomach Acid and Reflux
Hypochlorhydria (Low Stomach Acid): Symptoms, Tests, Treatment. Cleveland Clinic.
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