Zahnpflege & Mundhygiene

Summer, sun, dental problems? – How to protect your tooth enamel from UV radiation, acids & dehydration

Zahnschmelz unter Sommerbelastung: Sonne, Säure und Flüssigkeitsmangel

Summer is a promising time full of light, lightness, and joie de vivre. We enjoy the warm rays of sunshine on our skin, refresh ourselves with ice-cold drinks, and simply unwind by the lake or on vacation. But while we conscientiously protect our skin with sunscreen, another, equally sensitive area often goes unnoticed: our teeth .

Because they, too, experience the carefree summer spirit – albeit not always in a pleasant way. Heat, intense UV radiation, acidic refreshments, insufficient water, and constant snacking take their toll, especially on tooth enamel. What many don't realize is that while it's the hardest material in our bodies, it's unfortunately unable to repair itself. Once damaged, the damage remains.

So that you can enjoy the summer to the fullest – without your teeth suffering in the fall – we will show you in this article how you can best protect your tooth enamel now .

What really damages tooth enamel in summer

1. UV radiation and dry mucous membranes

Sunlight may not hit your teeth directly, but you still feel its effects. High temperatures and intense sunlight quickly dry out the sensitive mucous membranes in your mouth—especially if you don't drink enough. And that's where the real problem begins.

Saliva, our silent hero of oral health, loses its power when it's dry: It can no longer adequately neutralize acids, remineralize tooth enamel, and effectively flush away bacteria. So, if you sweat in the summer but don't reach for a glass of water often enough, not only does your circulation suffer – but so does the protective layer of your teeth. An invisible risk that's far too often overlooked.

2. Acids from lemonade, ice cream & fruits

Summertime – that's the scent of fresh strawberries, the tingle of citrus fruits, and the sweet temptation of sorbets, smoothies, or an ice-cold glass of cola. But as wonderfully refreshing as all these treats are, they have a downside: Many contain a concentrated load of fruit acids and sugar. This attacks tooth enamel, deprives it of important minerals, and temporarily makes its surface soft and sensitive. Anyone who reaches for a toothbrush right now risks literally sanding away the protective covering of their teeth – an invisible danger that leaves long-term marks.

3. Dehydration – more than just thirst

On hot days, your body not only loses sweat, but also precious moisture in the mouth – often unnoticed. If you don't drink enough, your natural saliva flow becomes unbalanced. This has consequences: The pH level in your mouth drops, the protective properties of saliva diminish, and your teeth become more susceptible to acids, bacteria, and pain-sensitive stimuli. Bad breath can also become noticeable more quickly – an unpleasant side effect, especially during summer conversations in close quarters.
Therefore, drinking is not just refreshment – ​​it is active dental protection.

4. >Common mistake: Reaching for the toothbrush immediately after eating

It sounds logical – and somehow feels right: brushing your teeth quickly after drinking ice cream, cola, or fruit salad. But this is a typical summer mistake that can seriously damage your tooth enamel. The acids in these foods soften the protective surface of your teeth. If you reach for your brush now, you'll literally rub off this softened layer – and lose valuable substance in the process.
Better: First rinse your mouth with water, give your teeth a short break of about 30 minutes – and then brush them gently and in a way that is kind to your enamel .

5. Why tooth enamel is so sensitive – and doesn’t “grow back”

It's inconspicuous yet indispensable: tooth enamel. Like a protective coat, it envelops our teeth, protecting them from heat, cold, and mechanical stress—and withstands the daily demands we place on it.
But as strong as this natural protection is, it has one crucial disadvantage: it cannot renew itself.

Tooth enamel is made of mineral substance—without any living cells. If it is damaged, whether by acids, grinding, or improper brushing, the loss is permanent. Over time, fine cracks, wear, and erosion develop, which accumulate—often unnoticed.
Therefore, the earlier and more consciously you protect your tooth enamel, the better it will last.

Enamel-friendly through the summer: The best tips

Tip 1: Water instead of acid – your teeth will thank you

Especially on hot days, water is more than just a thirst quencher—it's your silent helper for healthy teeth. By drinking still water regularly, you not only flush away food and sugar residue, but also naturally support saliva production—and thus protect your teeth.
If you occasionally reach for something sweet or acidic, no problem. A few sips of water afterward will help balance the pH in your mouth and relieve the strain on your tooth enamel. This way, you'll not only stay refreshed but also be kind to your enamel.

Tip 2: Give your teeth a real break

An ice cream here, a snack there – in the summer, it's especially easy to constantly snack. But this constant nibbling puts a real strain on your tooth enamel. Every bite introduces new acids into your mouth, and your tooth enamel hardly gets a chance to recover.
The better choice: Focus on regular meals and consciously give your teeth a rest period of at least two to three hours between meals. This allows the pH level in your mouth to stabilize – and your tooth enamel retains its natural strength.

Tip 3: Brush your teeth carefully – the right moment counts

For the sake of your oral health, you should pause for a moment after consuming acidic foods or drinks. Acids temporarily soften tooth enamel and make it vulnerable. If you immediately reach for your toothbrush, you risk literally scrubbing away the damaged surface.
Better yet: Wait about 30 minutes – and then opt for a particularly gentle, non-abrasive cleaning. Our emmi-dent Slim cleans completely friction-free – with ultrasound and millions of microbubbles – ideal for sensitive teeth and demanding summer moments.

Tip 4: Strengthen tooth enamel – with the power of fluoride and ultrasound

Your tooth enamel may be hard, but it's by no means invulnerable—especially in the summer. To strengthen it, it needs targeted support. Fluoride helps your enamel recover from acid attacks by depositing valuable minerals and making the surface more resistant. Modern ultrasound technology is even gentler: It cleans thoroughly—without pressure or friction —making it ideal for sensitive teeth during the warmer months. This way, you protect your teeth without putting additional strain on them.

Tip 5: Don’t forget – your tongue as a mirror of your summer hygiene
Especially on hot days, a fine coating quickly forms on the tongue – often unnoticed, but with noticeable consequences: unpleasant bad breath, a furry feeling, and disrupted oral flora. However, the tongue is far more than a silent player in the mouth – it deserves just as much attention as your teeth.
Gently cleaning your tongue – ideally with a soft scraper or a special ultrasonic attachment – ​​is therefore an integral part of your summer dental care routine. For a lasting fresh feeling in your mouth.

How to adapt your dental care to hot days

If you suddenly feel an unpleasant pulling sensation after eating your first spoonful of ice cream or taking a sip of cool fruit juice, it's often a warning signal from your body: Your tooth enamel is already damaged and is sensitive to temperature stimuli. In this case, you need dental care that doesn't cause additional stress, but rather specifically protects.

Our emmi-dent ultrasonic toothbrushes are designed precisely for this purpose: They don't clean through friction or pressure, but work completely contactless with modern ultrasonic technology. Millions of microscopic bubbles penetrate even the smallest spaces – without any scrubbing. Ideal for irritated gums, sensitive tooth necks, and those summer moments when you'd rather treat your teeth to soothing care instead of further irritation.

Dental care on the go: vacation, work, swimming lake

Summer draws us outdoors—to the seaside, the outdoor pool, the mountains, or simply to the nearest ice cream parlor. But even on the go, your dental care needs to travel with you—ideally compact, reliable, and uncomplicated. The emmi-dent Slim is perfect for this: lightweight, with a long battery life, and ideal for your suitcase, backpack, or glove compartment. Complemented with some dental floss, a small water bottle, and a stick of xylitol gum, you're perfectly equipped—no matter where your summer day takes you.

Tip: In particularly hot countries, tap water isn't always the best choice for oral care. Bottled water is a better option—especially if your gums are sensitive or have minor irritations.

Summer can come

The sun may dance on your skin – but your teeth deserve the same protection as your skin. Because even though you can't see the enamel, it's exposed to silent stress in the summer: acids, heat, dryness.

With the right knowledge, an enamel-friendly diet, and gentle, effective care—for example, with our emmi-dent Slim and its innovative ultrasound technology —you can give your teeth exactly what they need right now.

Treat yourself to conscious breaks, drink plenty of still water, and ensure a cleansing routine that strengthens rather than irritates. This way, your smile will stay bright, healthy, and unforgettable even after the summer – just like the most beautiful vacation moments.

Reading next

Mann schnarcht im Bett, Partnerin hält sich Ohren zu
Cocktailglas mit Strohhalm im Urlaub

The best dental care products