Ah, summer. The sun is shining, the grill is sizzling, and the pool is calling your name. Whether you’re doing laps at our neighbor Roger Carter Community Center, chasing little ones at the Nob Hill Swim Club, or just floating your stress away in your backyard pool, there’s no denying that swimming is one of the best parts of the season.
But here’s something you may not have heard before: too much pool time can affect your teeth—and not in a good way.
At Ellicott Mills Dental, we’re all for healthy fun in the sun, but we also want you to know how to protect your smile while you’re diving in headfirst. Let’s talk about what pool water—specifically the chlorine in it—can do to your teeth and how to prevent potential problems.
How Chlorine Affects Pool Water (And Your Teeth)
Pool water is treated with chlorine and other chemicals to keep it clean and free of bacteria (thank goodness, right?). But those chemicals also affect the pH of the water. When pool water isn’t properly balanced—especially if it’s too acidic—it can gradually wear away at your enamel, the hard outer layer of your teeth.
Even if the pool is properly maintained, prolonged and repeated exposure to chlorinated water can still have effects on your oral health. In fact, dentists even have a term for it: “swimmer’s calculus.”
What Is “Swimmer’s Calculus”?
Swimmer’s calculus is a fancy name for the yellow-brown staining that can appear on teeth when exposed to chemically treated pool water over long periods of time. It’s most common in competitive swimmers or folks who spend more than six hours a week in a pool. (Yes, we’re looking at you, summer swim team parents.)
These stains form when chlorine causes proteins in your saliva to harden faster than normal, which can lead to extra tartar buildup—especially on the front teeth.
Now, this doesn’t mean the occasional dip will damage your smile. But if you’re splashing around daily, it’s worth being proactive.
Signs That Pool Water Might Be Affecting Your Teeth
Here are a few symptoms to watch for if you’re a frequent swimmer:
Discoloration
Yellow, brown, or dark spots that don’t go away with brushing.
Increased Tooth Sensitivity
A sign that enamel may be wearing down.
Roughness or Chalky Texture
Early signs of enamel erosion.
Tartar Buildup
Especially on the front teeth, near the gumline.
If any of these sound familiar, it might be time for a quick visit to your friendly Ellicott City dentist (hint hint—we know a good one 😉).
Is Saltwater (Like Ocean Water) Better or Worse for Your Teeth Than Chlorinated Pool Water?
Ocean water is naturally high in calcium, magnesium, and trace minerals, which can actually have mildly beneficial effects on your enamel—especially when compared to harsh pool chemicals. Unlike chlorine, it doesn’t break down proteins in your saliva or accelerate tartar buildup like swimmer’s calculus. However, the salt, sand, and potential bacteria in ocean water can cause issues to your mouth. So make sure to rinse out after splashing in the ocean and don't skip out on flossing and brushing regularly.
Simple Ways to Protect Your Smile This Summer
Before you trade in your goggles, try these practical tips to protect your teeth during swim season:
Rinse with Fresh Water After Every Swim
This is the easiest and most effective way to wash away chlorine before it settles on your teeth.
Don't Brush Immediately
Your enamel can be slightly softened by pool water, so brushing right after swimming can do more harm than good. Wait 30-60 minutes after rinsing, then brush.
Keep Those Regular Cleanings
Professional cleanings remove tartar and stains that brushing can’t touch. If you're a regular swimmer, keeping your appointments on schedule is key.
Choose A Good Toothpaste
Look for one with fluoride or hydroxyapatite to help strengthen enamel and combat erosion.
Consider a Mouthguard (For Frequent Swimmers)
Custom mouthguards can protect not only your teeth from chlorine exposure but also from accidental knocks during water sports.
When to Talk to Your Dentist
If you’ve noticed any changes in your teeth during swim season—discoloration, increased sensitivity, or roughness—it’s a good idea to book an appointment. The earlier we catch enamel erosion or swimmer’s calculus, the easier it is to treat and prevent long-term damage.
At Ellicott Mills Dental, we’ve seen it all (yes, even pool-related tooth issues). Whether you’re a competitive swimmer, a lifeguard, or just a summer-loving cannonball pro, we’re here to keep your teeth healthy and bright.
Swim All Summer—Smile All Year
Swimming should be about fun and fitness, not dental damage. With just a few extra precautions, you can enjoy every splash without sacrificing your smile.
Need a summer cleaning or want us to take a closer look at those spots on your front teeth? We’ve got you covered.
📅 Schedule your appointment today and keep your smile poolside-perfect all season long.
📍 Proudly serving Ellicott City and the greater Howard County area with over 425 five-star reviews and a reputation for family-friendly, patient-first care.
