Dry Mouth: Why Saliva Matters So Much for Your Teeth

Saliva is one of your body’s most inconspicuous achievements. One to one and a half litres a day, usually completely unnoticed. Only when there’s too little of it do you realise how much depends on it.

What saliva does all day long

It rinses. After every meal and drink, saliva dilutes and removes residues from your teeth. It buffers the acids produced when you eat and brings the pH in your mouth back into balance. It carries minerals, including calcium and phosphate – the same building blocks tooth enamel is made of. And it keeps the lining of your mouth moist and supple.

If part of this work falls away, a lot shifts at once: your teeth stay surrounded by acids for longer, the lining of your mouth becomes more sensitive, and the balance of the oral flora is more easily thrown off. How this community of bacteria works is explained in Oral probiotics and the oral environment.

Where a dry mouth can come from

The most common cause is simply not drinking enough over the day. Next come medicines – a whole range of common active ingredients reduce saliva flow as a side effect, including many medicines for high blood pressure, allergies or depression.

Then there’s mouth breathing. If you breathe through your mouth at night because your nose is blocked or because you snore, you wake up with a dry mouth. Stress, caffeine, alcohol and smoking work in the same direction. And with age, saliva production decreases in many people anyway.

A persistent dry mouth can also be a sign of an illness. If it lasts, it should be checked by a doctor – that’s not a topic for the chemist’s shelf.

What helps in everyday life

The most effective step is the obvious one: drink small amounts of water spread over the day rather than a lot twice. Sugar-free chewing gum stimulates saliva flow. At night, it helps not to let the air in the room get too dry. Go easy on caffeine and alcohol in the evening.

When it comes to oral care itself, a mild formula matters. Mild surfactants and restrained flavours feel more pleasant on irritated mucous membranes. Our Sensitive flavours contain no SLS or SLES and are mildly formulated.

Sensitive · mild mint

Hydroxyapatite Tooth Powder Sensitive – Soothing Mint

Mild mint, mildly formulated: hydroxyapatite supports the natural remineralisation of tooth enamel, xylitol contributes to a balanced oral environment, and the postbiotic supports the natural balance of the oral flora. No nano particles. Mineral · With plant-based ingredients · Refillable · Made in Germany.

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All flavours and sizes are in the overview Tooth powder with hydroxyapatite.

The honest part

Oral care can make dry mucous membranes feel more comfortable. It cannot replace what’s missing. If there’s too little saliva, the solution almost always lies outside the bathroom cabinet – in how much you drink, in a medicine, in nasal breathing or in something a doctor should look at.

Your questions about a dry mouth

Why is my mouth dry at night?
Saliva flow drops significantly during sleep. If mouth breathing comes on top – for example with a blocked nose or snoring – the lining of the mouth dries out even more.

What can I do in everyday life?
Drink water regularly in small amounts, chew sugar-free gum to stimulate saliva flow, and keep the air in the room from getting too dry at night. If you take medicines that dry out your mouth, it’s worth talking to your doctor.

Does oral care play a role?
Mild formulas with mild surfactants and restrained flavours feel more pleasant when the lining of your mouth is dry. But the cause matters more than the product.

When should I see a dentist?
If the dryness lasts, makes swallowing or speaking difficult, or sore spots appear. A persistent dry mouth should be checked – oral care is no substitute for a diagnosis.